DHBVN · Minister of State (Independent Charge) for Power, Coal and New & Renewable Energy...
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DHBVN (Dakshin Haryana Bijli Vitran Nigam) HVPNL (Haryana Vidyut Prasaran Nigam Limited) Revised D.P.R. Smart Grid Project Gurgaon City First Phase DLF Sub-Division Area 05/05/2016
Transcript of DHBVN · Minister of State (Independent Charge) for Power, Coal and New & Renewable Energy...
DHBVN
(Dakshin Haryana Bijli Vitran Nigam) HVPNL
(Haryana Vidyut Prasaran Nigam Limited)
Revised D.P.R. Smart Grid Project Gurgaon City
First Phase DLF Sub-Division Area
05/05/2016
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Table of Contents Table of Contents .......................................................................................................... 21 Executive Summary ............................................................................................... 6
1.1 Need of Smart Grid leading to Smart City .......................................................... 6
1.2 Gurgaon Smart Grid Leading to Smart City ........................................................ 7
1.3 Phase -1 (Part-1) DLF City Subdivision area .................................................... 10
1.4 Demographic Statistics ..................................................................................... 11
1.5 Electricity Profile of DLF City Sub Division in Gurgaon ..................................... 11
1.6 Transmission Infrastructure & Challenges ........................................................ 12
1.7 Challenges in Distribution: ................................................................................ 14
1.8 Objectives of the Project ................................................................................... 15
1.9 Proposed Strengthening of Infrastructure ......................................................... 16
1.10 Estimated Cost of Project (Phase I) .............................................................. 18
1.10.1 Estimated Cost of Substation and lines .................................................. 20
1.11 Financing Strategy ........................................................................................ 21
1.12 Implementation strategy and ownership ........................................................ 22
1.13 Reliability Surcharge ..................................................................................... 22
1.14 Cost Benefit Analysis .................................................................................... 23
2 BACKGROUND ..................................................................................................... 242.1 SMART CITY GURGAON - The Concept ......................................................... 24
2.2 Gurgaon Smart Grid Leading to Smart City ...................................................... 29
2.3 Geographical Map of Gurgaon under Smart Grid ............................................. 32
2.4 Sectors to be covered under Part-1 .................................................................. 33
2.5 Part-1 Phase-1 DLF City Subdivision area ....................................................... 34
2.6 Demographic Statistics ..................................................................................... 35
2.7 Electricity Profile of DLF City Sub Division in Gurgaon ..................................... 35
2.8 Scope ............................................................................................................... 37
3 DISTRIBUTION ...................................................................................................... 383.1 Analysis of existing infrastructure and Identification of Challenges .................. 38
4 TRANSMISSION .................................................................................................... 474.1 Analysis and Challenges in Gurgaon transmission network ............................. 47
4.2 Challenges in Gurgaon Transmission System .................................................. 49
4.3 Transmission System Studies .......................................................................... 49
5 DEVELOPING THE SMART GRID ........................................................................ 50
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5.1 What is Smart Grid ........................................................................................... 51
5.2 Advanced Metering Infrastructure (AMI) ........................................................... 54
5.3 Peak Load Management (PLM) ........................................................................ 59
5.3.1 DR and DSM for All Consumers ................................................................ 61
5.3.2 Power Quality Improvement .......................................................................... 62
5.4 Distribution Transformer Monitoring Unit (DTMU) ............................................ 64
5.5 Smart Grid Control Centre ................................................................................ 65
6 BENEFITS OF SMART GRID INITIATIVES .......................................................... 666.1 Benefits of Advanced Metering Infrastructure ................................................... 66
6.1.1 Reduction in Meter Reading Cost .............................................................. 66
6.1.2 Reduction in Field and Meter Services ...................................................... 67
6.1.3 Reduction in Off Cycle Trips ...................................................................... 67
6.1.4 Reduction in Outage Field Trip .................................................................. 68
6.1.5 Reduction in Unaccounted Energy ............................................................. 68
6.1.6 Theft / Tamper Detection & Reduction ....................................................... 68
6.1.7 Faster Identification of Dead Meters .......................................................... 69
6.1.8 Improved Distribution System Savings ...................................................... 69
6.1.9 Improved Distribution System Management .............................................. 70
6.1.10 Operational Efficiency Improvement ....................................................... 70
6.1.11 Reduction in Estimated Bills ................................................................... 70
6.1.12 Reduction in Customer Call Volume ....................................................... 71
6.1.12.1 Reduction in Float between Meter Read and Customer Billing ........... 71
6.2 Benefits of Peak Load Management ................................................................. 71
6.3 Other Benefits ................................................................................................... 72
7 SCADA IMPLEMENTATION ................................................................................. 737.1 Components of Grid Automation ...................................................................... 73
7.2 Illustration of automated fault restoration by SCADA ........................................ 73
7.3 Requirement of Software Applications with SCADA ......................................... 77
7.3.1 Distribution Management System(DMS) .................................................... 77
7.3.2 Outage Management System .................................................................... 81
7.3.3 EMS Applications at Smart Grid Control Centre: ....................................... 82
7.3.4 Switching Procedure Management ............................................................ 83
7.4 Benefits of Implementation of SCADA & Software Applications ....................... 84
7.4.1 Leading functionality .................................................................................. 84
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7.4.2 Operation and informative presentation of the network .............................. 84
7.4.3 Dependable Operational Safety ................................................................. 85
7.4.4 Intelligent switch order management ......................................................... 86
7.4.5 Reduction in Outage duration .................................................................... 87
7.4.6 Fast and efficient reporting of operational statistics and outages ............... 88
7.5 Implementation of SCADA in project area: Architecture & BOQ ....................... 89
7.5.1 Activities to be performed in Distribution System: ...................................... 90
7.5.2 Common SCADA Control centre ................................................................ 90
7.5.3 Communication Network ............................................................................ 90
7.5.4 Field Equipments ....................................................................................... 91
7.5.5 Components of SCADA Control room ........................................................ 92
8 LOAD FORECASTING UPTO 2031 ...................................................................... 95
8.1 Calculation of Ultimate load of Project area ie DLF City Subdivision up to 2031 for design of proposed electrical network ................................................................... 95
8.2 Load to be fed at 11 KV(Other than DLF V) ..................................................... 96
8.3 Table 8.3 Load to be fed at 66 KV &11 KV ...................................................... 98
8.4 Table 8.4 Load to be fed at Various Voltage levels ....................................... 100
8.5 Table 8.5:Year Wise Load Projection at Existing 03 No. 66/11 KV S-stns. and 07 no. proposed 66/11 KV S-stns.(Other than DLF V) ............................................ 100
8.6 Table 8.6:Total No. of 11 KV feeder to be laid Sstn. wise(Except DLF V) ...... 101
8.7 Table 8.7 :DT Installation schedule to meet out Urban load(Other GHS and Single point connections)for meeting Ultimate Load Up to 2031 .............................. 102
9 NETWORK UPGRADATION & STRENGTHENING ............................................ 1049.1 Proposed Network Up-gradation / Strengthening Initiatives by DHBVN ......... 104
9.1.1 Layout of Existing 11 KV Radial feeders .................................................. 105
9.1.2 Layout of proposed 11 KV Ring Main System .......................................... 106
9.2 Proposed Network Up-gradation/Strengthening Initiatives by HVPN .............. 109
9.2.1 HVPN Proposal for Phase-1 of Part-1 ie for area under DLF City Subdivision ........................................................................................................... 114
9.2.2 Connectivity of Proposed HVPN Sub-stations ......................................... 119
9.2.3 Connectivity of proposed HVPN Sub-stations along with down the level connected lines .................................................................................................... 120
9.2.4 Proposal for Transmission Infrastructure at Various Sub-stations ........... 123
10 COST ESTIMATES & BENEFITS ..................................................................... 13910.1 Estimated Cost of Project (Phase I) ............................................................ 139
10.2 BENEFITS ................................................................................................... 141
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10.3 COST BENFIT ANALYSIS .......................................................................... 141
10.3.1 Benefit of Implementation of AMI .......................................................... 141
10.3.1.1 Reduction of AT&C losses ................................................................. 141
10.3.1.2 Reduction in average cost of billing ................................................... 142
10.3.2 Peak Load Management ....................................................................... 142
10.3.3 Outage Management System ............................................................... 142
10.4 Summary of Benefits ................................................................................... 146
11 FINANCING STRATEGY .................................................................................. 14712 STRATEGY FOR IMPLEMENTATION .............................................................. 14913 RECOVERY THROUGH RELIABILITY SURCHARGE ..................................... 15114 CONCLUSION ................................................................................................... 153
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1 Executive Summary
1.1 Need of Smart Grid leading to Smart City Energy needs of the country are growing at a very rapid pace. In order to
meet increasing energy demand, amidst growing environmental concerns
as well as energy security issues, we need to increase efficiency in all value
chain viz. generation, transmission & distribution. More importantly,
efficiency need to be increased to a point where we shall actually be using
less energy to power more establishment / businesses. Further, to be
sustainable, we must be able to produce the amount of energy we need,
without much impact on environment like through renewable and other non-
conventional resources. Consumer aspiration on quality supply, as well as
operation in open electricity market regime, integration of renewable energy
sources which are intermittent and variable in nature, are also posing new
challenges which needs to be addressed. Smart Grid offers a solution
towards above challenges. Smart Grid is a confluence of Information,
Communication, Electrical/Digital technologies, integrating all users to
efficiently balance demand and supply over an increasing complex network.
Cities occupy 4% or less of the world’s terrestrial surface, yet they are
home to almost half the global population, consume close to three-quarters
of the world’s natural resources, and generate three-quarters of its pollution
and wastes. The United Nations estimates that virtually all net global
population and economic growth over the next 30 years will occur in cities,
leading to a doubling of current populations. India is also not untouched
with above phenomenon. Our cities are becoming more populated
continuously as people are migrating from rural areas towards urban areas
for more facilities, better life, education and employment. India is urbanizing
at an unprecedented rate so much that estimates suggest nearly 600
million of Indians will be living in cities by 2030, up from 290 million as
reported in the 2001 census. Increasing urban population and
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unprecedented load on aged and insufficient infrastructure in our cities has
forced many challenges for fulfilling basic facilities like home, energy,
employment, health, mobility etc. In addition infrastructure to supply
commodities like electricity, water, gas is becoming insufficient to cater
such an inflow of population. Increased living standard of people is resulting
high consumer aspirations and affordability.
Therefore, there is a need for development of smart grid leading to smart
cities, to provide quality life for its citizens for inclusive growth, generate
employment as well as reduce pressure of infrastructure requirement on
other large cities. Strengths of Smart Grid technologies can transform cities
to Smart cities which shall facilitate in increasing human productivity,
realization of inherent urban potential and lesser use of natural resources
per person, information access & processing to improve citizen services
etc.
1.2 Gurgaon Smart Grid Leading to Smart City Gurgaon is one of Delhi's four major satellite towns and is part of the
National Capital Region of Delhi. It has an area of 1253 km² and its
demography provides a gateway for access to many other important towns
of the Northern Region. Its proximity to the capital and the Indira Gandhi
International Airport has caused its urbanization to take place at a much
faster rate in recent years and has effectuated Gurgaon to become a
leading cosmopolitan city of the world. It has also become an industrial and
financial hub of the country with one of the highest per capita income
having been recorded here. The per capita consumption of electricity in
Gurgaon is around 4000 kWh per annum which is expected to increase to
up to 6400 kWh by 2022. Consumers in Gurgaon get electricity from
Dakshin Haryana Bijli Vitran Nigam Limited (DHBVN), one of the
distribution utilities catering to Southern part of Haryana. It is a State
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Government owned company and governed by the Board of Directors of
DHBVN appointed by the state government. Gurgaon operation circle is
one of the four operation circles under Delhi zone and is headed by an
officer of the rank of Superintending Engineer. It has three operation
divisions under its jurisdiction:
i. City Division
ii. Sub-Urban Division
iii. Manesar Division
It is for quite some time now that the concept of developing Gurgaon as a
Smart City has been under discussion at the highest levels in the
government, State as well as the Union. On 29th April 2015, Hon’ble Union
Minister of State (Independent Charge) for Power, Coal and New &
Renewable Energy co-chaired a meeting with the Hon’ble Chief Minister
Haryana at the headquarters of Power Grid Corporation of india Ltd.
(PGCIL) Gurgaon wherein it was decided to take all necessary steps to
improve power situation in Gurgaon primarily with the two objectives in
mind to start with. One, to provide 24x7 uninterrupted electricity to all the
consumers and two, to make Gurgaon Diesel Generator free town in a year
and to scale up the infrastructure further to make it a Smart Grid. Among
the various subjects discussed during the meeting, the following three were
thought of as the priorities:
i) Strengthening / Up-gradation / Modernization of Power Transmission,
Sub-transmission & Distribution infrastructure to assure 24x7
uninterrupted Power Supply to all the categories of consumers and to
make Gurgaon Diesel Generator Set Free within next one year
ii) Map Gurgaon through Geographical Information System (GIS)
technology
iii) Smart Traffic & Surveillance Management.
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Out of these three priorities, the first one, which can be named as Smart
Grid Project of Gurgaon, relates to DHBVN and HVPN. In accordance with
the deliberations held during the meeting, a preliminary assessment of the
work involved was made by DHBVN, HVPN and PGCIL together. A
presentation in this regard was also made before the Hon’ble Chief Minister
Haryana on 9th June 2015 at New Delhi. Again on 8th
1. To take up Gurgaon town and Industrial Area of Manesar together in
one go would be extremely difficult not only in terms of execution on
the ground but also in terms of arrangement of funds to finance it.
October 2015, the
discussions on smart grid restarted and a meeting was held at Shram
Shakti Bhawan, New Delhi. It was co-chaired by Hon’ble Chief Minister
Haryana and the Hon’ble MoS (IC) Power, Coal and Renewable Energy
Departments, Government of India wherein issue of setting up smart grid in
Gurgaon was discussed at length and to make it an iconic city for rest of the
country to follow. Presentations by PGCIL and Power Department Haryana
were made during the meeting.
Following conclusions were arrived at so far as Smart Grid Project of
Gurgaon is concerned:
2. For the ease of execution, proposal of power Department Haryana to
break up the project in smaller parts was considered an appropriate
approach, which was as under:
a) Part I: Sectors 1 – 57, which is almost fully occupied and we know it
as present day Gurgaon. This part will be taken up first.
b) Part II: Sectors 58 to 115,major portion of which is still vacant, land
with some small constructions coming up here and there. This part
can wait and the work here will be taken up subsequently in next few
years.
c) Part III: IMT Manesar area which does not experience much of the
electricity problems as on date and will be taken up at a later date.
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3. The load projections on which the work will be planned will be up to
2030-31
4. The total cost estimations of the project, though assessed at around
Rs. 12000 crores for all the three parts, would be around Rs. 7000
crores for Part I.
5. Part I would further be divided in to 4 phases, as explained under:
a) Phase I: Jurisdictional area of DLF Operation Subdivision of DHBVN,
which lies on left side of Delhi-Jaipur Highway after crossing the toll
plaza and going up to IFFCO chowk
b) Phase II: Jurisdictional areas of South City and Sohna Road
Subdivisions of DHBVN, which lie on the left side of Delhi-Jaipur
highway from IFFCO chowk to almost Kherki Daula toll plaza
c) Phase III: Jurisdictional areas of Maruti and IDC subdivisions of
DHBVN, which lie on the right side of Delhi-Jaipur highway from toll
plaza to Jharsa chowk covering mainly Udyog Vihar and the old city
area including Sadar Baazar etc.
d) Phase IV: Jurisdictional areas of Kadipur, New Colony and New
Palam Vihar S/Ds of DHBVN covering rest of the areas under sectors
1-57.
(Copy of the Minutes of meeting dated 8th
1.3 Phase -1 (Part-1) DLF City Subdivision area
October are annexed at
Annexure A for reference.)
DLF City Sub Division is a medium sized neighbourhood in east Gurgaon
which falls under Gurgaon sub-urban division of Gurgaon Circle. It is an
important residential and commercial hub of Gurgaon and a cosmopolitan
locality with people from all parts of India living in harmony with each other.
The area under DLF subdivision being the most disturbed and most
revenue earning, so far as electricity is concerned, will be taken up in
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Phase I to effectuate and adopt advanced smart grid technologies to
improve upon the existing sub-transmission and distribution system. Its cost
has been estimated at around Rs. 1382 crores (Distribution at INR 653
crores + Transmission at INR 702 crores + Consultancy at INR 27 crores)
approximately.
1.4 Demographic Statistics The Demographic profile of the proposed project area “DLF City Sub
Division” in Gurgaon City Division is as under:
Location Area in sq km
Population (Nos.) Average literacy
rate
Population Density
(Nos./km2) Total Urban Rural
DLF Sub
Division
20 Sq.
Km 1.5 lacs 100% 0%
About
90%
7,500 person
/km2
1.5 Electricity Profile of DLF City Sub Division in Gurgaon Profile of DLF City Sub Division in Gurgaon, in the year 2014-15 is as
under:
• 29144 Nos. of consumer with an overall annual consumption of 742
MU
• The peak demand of the area is about 225 MW
• Annual billed Energy is 681 MU and estimated AT&C losses are
11.91%
• 2 Nos. major and 65 Nos. minor transformer failures take place
annually, which are typically attended & restored within 3 hours
• Approx. 1205 Nos. of line outages take place annually, which are
typically attended in 160 minutes.
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• The area comprises only of LT and HT consumers. There are 29144
Nos. of consumers. LT Consumers-28926, HT Consumers-218.
• Total Sanctioned load of DLF Sub-Division - 542 MW.
• Total DTs installed under DLF Sub-Division - 732 nos.(Maintained by
DHBVN = 462; Maintained by Single point Consumers = 270)
• Total installed Capacity of DTs of DLF Sub-Division – 464 MVA.
• Total Nos. of existing 11KV Feeders – 88 nos.
• Total Load of existing 11KV Feeders – 225 MW.
• HT line length: 234 km
• LT line length: 444 km
• Load Projection up to FY 2031 for first phase (DLF Sub-Division) for
Smart City Project of Gurgaon City – 784 MW
• Profile of Consumers based on sanctioned load basis
Sr.
No.
Description of load No.s Sanctioned
Load(In MW)
1 Single phase,Load up to 5 KW 9380 28.526
2 Three phase,Load >5 KW and <=20 KW
18602 207.685
3 Three phase,LT CT operated meter, >20 KW and <=69 KW
944 36.361
4 HT 11 KV CT operated meter, > 50 KW
217 269.4
5 HT 66 KV CT operated meter 1*
Total 29144 542
• M/s Rapid Metro has an alternate source of supply at 66 KV Voltage
level in addition to connection at 11 KV voltage level
1.6 Transmission Infrastructure & Challenges Gurgaon has witnessed exponential power demand growth in proportion to
the city's population growth rate. Peak Demand requirement has risen to
1670 MW in 2014-15, which is almost double of last 5-6 years. In order to
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meet rising demand, HVPN & DHVBN have taken up a number of steps to
strengthen its Transmission and Distribution network. Presently, Gurgaon
District receives power from two (2) Nos. 400/220 kV Substations namely
Daultabad (945 MVA) & Secor-72 (630 MVA) with cumulative
transformation capacity of 1575 MVA. 400/220kV Panchgaon (1000 MVA)
substation (PGCIL) is commissioned and is being interconnected with 220
kV Panchgaon (HVPN) for dispersal of power. Part of the demand is also
served through 220kV Samaypur, 220kV Pali and 66kV BBMB, Delhi
Substations.
Seven (7) Nos. 220 kV substation [220/66 kV & 220/33 kV] viz. at
Badshahpur, Sector 52A, IMT Manesar, Daultabad, Sector-56, Sector-72 &
BBMB Delhi, with 1860 MVA [220/66 kV-1760 MVA & 220/33 kV-100 MVA]
transformation capacity is utilized to feed DHVBN downstream network in
Gurgaon. Existing Power map of Gurgaon is shown at Fig I-B below
Challenges in Transmission: Presently Gurgaon Transmission network faces challenges like inadequate
redundancy of 220 kV lines as well as transformers (both Power
transformers as well as Distribution transformer). These 220 kV
transmission lines and power transformers get critically loaded especially
during contingency conditions and peak summer.
As per the information available, Gurgaon City witnessed about 1100 MW
peak demand in 2012-13, whereas it increased to 1250 MW & 1400 MW in
2013-14 & 2014-15 respectively, which is about 12-13% annualized growth
rate. Substantial demand growth has already taken place. Therefore,
demand growth at such a rapid pace may not sustain in future and may get
moderated to around 10% per annum in coming years. However, while
carrying out demand growth analysis, demand met through DG (10%) as
well as DLF Gas plant (104 MW), for year 2014-15 has been considered.
Analysis reveals that, peak demand requirement shall increase to about
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4800 MW by 2022. To assure 24x7 quality power supply to the model
Gurgaon Smart Grid leading to Smart City, Transmission and Distribution
needs to be strengthened to meet such massive demand requirements.
Based on inputs like demand data (node wise), information about existing
and planned transmission system, network topology etc., studies have been
carried out jointly by HVPN/DHVBN. Transmission system of various
regions including STU networks (220kV and above) available in the study
time frame has been simulated based on the data available with
POWERGRID. Based on studies, Transmission system strengthening
(Zones wise) was evolved which broadly includes following:
• Establishment of new 220kV substation (GIS) to cater to demand
growth as well as to meet requirement of new demand centers
• 220kV Multi circuit Transmission line (High capacity conductor)
(Overhead/Cables)
• Formation of 220kV Transmission ring underlying planned 400kV ring
• Augmentation of Transformation capacity on existing / under
construction / HVPN planned Substations at 220/66 kV & 220/33 kV
level
1.7 Challenges in Distribution: Based on the existing infrastructure constraints, following issues and
challenges have been identified in distribution system of Gurgaon::
• Radial distribution feeders
• Infrastructure Capacity inadequacy
• No redundancy at any level
• Overloading of transformers (around 88% transformer are
overloaded)
• Inadequate reactive compensation (about 20% of the total installed
capacity)
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• Absence of SCADA & Automation
• Poor voltage regulation in distribution feeders
• High feeder losses
• Poor power quality situation
• High outage rate at 11kV feeder level, SAIFI (System Average
Interruption Frequency Index) is 84 nos. and SAIDI (System Average
Interruption Duration Index) is 451 Minutes
• Capex approved for 2015-16 by HERC (Rs 373 Cr., considering 33%
of total capex approved for DHBVN, apportioned by revenue
percentage) is not sufficient to create infrastructure for ensuring 24x7
supply.
1.8 Objectives of the Project Main objective of this report is to analyze present system and adoption of
Smart Grid technologies and distribution network up-gradation /
strengthening measures that will improve the performance of distribution
system of DLF City Sub Division in Gurgaon and will ensure 24×7 reliable
power supply to the consumers. Efficacy of these advanced
technologies of the modern era will empower consumers to participate in
energy management process and shall make distribution system more
efficient. With these aspects in view, following objectives have
beenoutlined for development of Smart Grid at DLF City
SubDivisionin Gurgaon to:
• Ensure 24x7 power supply to all the consumers
• To make Gurgaon city DG Set free
• Increase in billed energy and reduction in AT & C losses.
• Empowerment of consumers to participate in the energy
management.
• Improvement in reliability by reduction in outage rate and duration
• Improved administration decision making through GIS tools
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• Smart Transport and Traffic Management
• Increase in customer satisfaction and consumer awareness
• Propose Smart Grid technologies, which would facilitate efficient,
accurate & effective online recording & monitoring of the energy
exchanges in distribution system to reduce AT&C losses and
operational errors viz. reading error, bias error, typographical errors
etc. caused by involvement of human elemen
• Actuate empowerment of consumers to participate in the energy
management process
• Implement technologies that will enhance quality of power at doorstep
of consumers and will help in proper monitoring of assets for
extended life
• Efficient system operation by better load management
• Enable high level of customer satisfaction and increased awareness
Augmentation of existing distribution system and improvement of
commercial performance is a continuous process, requiring periodic
reviews based on the target achieved. Accordingly, present report covering
complete details of the area in terms of existing assets, present technical
and commercial performance, IT solutions, smart grid technology
deployment; would serve as a base report for implementation of Smart grid
in DLF City Sub Division. The distribution system of project area shall be
shaped like a model Smart Grid by implementation of Smart Grid
Technologies like Advanced Metering Infrastructure (AMI), Peak Load
Management (PLM), Power Quality Management (PQM), and State-of-the-
Art communication system atop existing infrastructure.
1.9 Proposed Strengthening of Infrastructure To mitigate above challenges and to achieve the objectives, following
measures and applications are proposed as under:
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• New 220/66/11 kV and 66/11 kV substations (GIS) for transfer of load
from existing overloaded substations with N-1 redundancy
• Augmentation of existing 66/11 kV substation to address ‘N-1’
redundancy
• Conversion of overhead system to underground cable. To start with
11 kV network will be taken up, which will be subsequently scaled
down to LT lines.
• Formation of 11 kV ring main by installing RMU (Ring Main Units)
• SCADA (Supervisory Control and Data Acquisition) and OMS
(Outage Management System).
• Optic Fibre Cable up to Distribution Transformer for bidirectional
communication between Consumer and utility
• Advanced metering system covering 4.4 lacs consumer till 2022.
• Load management at consumer level through Demand response and
Demand side management.
• Payment linked load shedding
• Integration of proposed system with R-APDRP
• Regulatory mechanism for Time of day tariff for all category of
consumers, tariff rationalization and mandatory energy efficiency
measures compliances
• The complete ownership for operation and maintenance will be with
DHBVN and HVPN, as the case may be, even in builder area after
the installation and commissioning of the new system.
• The existing street lights in the city and especially in the bye-lanes
are on DHBVN LT poles which will be removed when system gets
converted to underground and new underground street light system
will be laid alongwith the electrical system for which the concerned
department ie HUDA/MCG will bear the cost and deposit with
DHBVN.
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• The operation and maintenance of newly installed system for atleast5
years after commissioning will be in the scope of executor
1.10 Estimated Cost of Project (Phase I) Sr.No.
Description/ Major head of items
Unit Quantity Unit Rate
Total Supply Cost
Total Supply Cost +15%
Erection Total (In Lacs)
In Lacs
DISTRIBUTION DHBVN
1 HT Cables (Various Sizes)
KM 281.42 4642.12 5338.45 232.11 5570.55
2 LT UG Line (Various sizes)
KM 1923.07 5433.16 6248.14 271.69 6519.83
3 LT Feeder Pillar
No.s 7451 11485.49 13208.31 229.70 13438.02
4 RMU(Ring Main Units) with FRTU & FPI
No.s 563 3753.98 4317.08 750.07 4392.16
5 Distribution T/F(11KV/.433KV)
No.s 240 2162.13 2486.44 43.24 2529.69
6 Optical Fiber and PLB-HDPE Pipe
KM 259 280.477 322.54 14.02 336.57
7 Street Light No.s 11000 4395.35
8 Civil work for foundation of DT/RMU/FP etc
No.s 8394 1189.96 1189.96
9 Civil work for underground laying of cable/optical fiber
Mtr. 1043000 3563.50 3563.50
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10 Fencing R/ Mtr
9711 322.79 371.21 32.27 403.49
11 RCC slabs and route markers
No.s 905430 1883.00 2165.45 37.66 2203.11
12 PSS No.s 15 409.98 471.47 8.19 479.67
13 Cost of other minor items/works
L/S 991.14 1139.81 128.1 1267.91
14 5 years O & M 4152.73
Sub-Total 50442.32
SCADA & OMS/ADMS
1 SCADA & OMS along with civil work required for the project
lot 1
10055
AMI(including DTMU’s)
1 Field Equipment for AMI & PLM
lot 1
3409
2 IT System and Integration for AMI & PLM
lot 1
672
3 Field equipment for PQM & DTMU
lot 1 756
4 Consumer Education and Awareness
lot 1 10
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Sub-Total 4847
Total DHBVN -A 65344.32
TRANSMISSION-HVPN
1 Substations & Lines
70182
TOTAL (HVPN) - B 70182
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Total Consultancies Charges – C (2% of (A+B)) 2710.52
GRAND TOTAL (A+B+C) 138236.8
1.10.1 Estimated Cost of Substation and lines Sr. No. Description Unit Qty. Unit cost
(In Cr.) Total cost (In Cr.)
1 Establishment Cost of each 220 KV Sub-Station No. 2 10 20
2 Land Cost of each 220 KV Sub-Station No. 2 10 20
3 220/66 kV, 160 MVA transformer No. 6 7 42
4 220 /66 kV, 160 MVA Transformer bay (GIS) No. 6 9 54
5 220 kV Line bays-(GIS) No. 8 9 72
6 220 kV Bus Coupler Bay-(GIS) No. 2 9 18
8 Establishment Cost of each 66 KV Sub-Station No. 6 2 12
9 Land Cost of each 66 KV Sub-Station No. 6 5 30
10 66/11 KV, 25/31.5 MVA T/F No 24 1.5 36
11 66 /11 kV, 25/31.5 MVA Transformer bay (GIS) No. 24 1.5 36
12 66 kV Line bays-(GIS) No. 44 1.5 66.00
13 66 kV Bus Coupler Bay-(GIS) No. 8 1.5 12
14 66 KV I/C Bays (GIS) No 6 1.5 9
15 66 KV Capacitor Bays No. 6 1.5 9
16 Providing additional 25/31.5 MVA T/Fs No. 4 1.5 6
17 11 kV (GIS) panel set comprising of two incomers, two capacitors, two substation & eight VCBs of outgoing feeders.
No. 410 0.08 32.8
18 220 kV M/C line on M/C Towers with HTLS Conductor.
Ckt. Km 8.5 2.6 22.10
19 220 kV D/C line on Underground XLPE Cable 1000 Sq.mm including laying
Ckt. Km 6 20 120
21
20 66 kV D/C XLPE underground aluminium 1200 sq. mm cable including laying
Ckt. Km 32.51 2 65.02
21 Replacement of Existing Moose ACSR Conductor with HTLS Conductor.
Ckt Km 2 1.25 2.50
22 Dismantlement of Existing AIS 66 KV Sub-Stations at DLF Q- Block and Sec-28, Gurgaon.
No 2 0.5 1
23 Creation of 220 KV D/C line with HTLS Conductor.
Ckt. Km 9 1 9
24. Creation of 220 KV AIS Bays No 2 3.10 06.20
25. Creation of 66 KV Bays ( AIS) No 2 0.60 1.20
Total 701.82 say 702 Cr.
Copy of Detailed estimate is placed as Annexure-B
1.11 Financing Strategy For making an estimated expenditure of Rs. 1382 crores, the funding
mechanism proposed is as under:
1. The Ministry of Power has sanctioned 25% of the project cost as
grant/equity by GOI, which comes to 1382 x 0.25 = Rs. 345.5 Crores.
2. Expenditure is proposed to be made in two (2) years i.e. 2016-17 and
2017-18 expectedly in the ratio of 30:70 percent respectively.
3. The balance Rs. 1036.5 crores is proposed to be arranged as loan
from PFC, a part or total of which will be arranged as equity from the
Haryana Government. It is shown in tabulated form as under:
It is shown in tabulated form as under:
Arrangement of Funds
1st 2 Year (2016-17)
nd Total (in crores)
Year (2017-18)
Grant from MoP (GoI)
103.65 241.85 345.5
Loan from PFC 310.95 725.55 1036.5 TOTAL 414.6 967.4 1382
22
1.12 Implementation strategy and ownership The work shall be awarded through open tendering on the basis of
per unit cost of each item and shall be awarded to the firm who quotes the
lowest premium. The turnkey contractor will carry out the detailed survey in
the field before execution of work. The work shall be awarded on “Concept
to Commissioning”basis with at least five year’s post commissioning
operations and maintenance. The ownership of the new system after
commissioning will be of DHBVN.
The work shall be executed in phased manner without disturbing the
existing distribution/transmission system. After laying of new system the
connectivity of the newly laid system with old system shall be done in one
go, so that the supply to the consumers is minimally affected.On the DT
side, the 11 kV new line alongwith the DTs shall be installed first and
thereafter the load shall be shifted on the newly laid DTs. Other associated
LT underground works shall be carried out in parallel.
1.13 Reliability Surcharge Considering that this scheme will improve reliability through 24x7
power supply as well as making Gurgaon city DG sets free, it is proposed
that a reliability charge may be levied in the tariff for all the categories of
consumers. The reliability charge would be used to service debt, O&M and
provide return on equity for the investment. Proposed reliability charge will
be uniformly levied @ Rs. 0.50 on domestic category consumers including
Bulk Supply Domestic and @ Rs. 0.60 per unit of consumption on all other
categories of consumers. However, the expected return against levy of this
reliability surcharge has been estimated @ Rs. 0.55 on all categories, as
the consumption of domestic category including Bulk Supply Domestic
consumers and other categories consumers are equal in DLF Sub-Division.
23
1.14 Cost Benefit Analysis It is anticipated that after arranging the funds through Grant by GoI
and Loan from PFC, recovery through reliability charges would make the
returns better:
Expected benefits per year from above mentioned smart grid initiatives are
and the recovery in shape of Reliability Charge is summarized in table
below:
Benefits during Year 2017
Sr. no.
Initiative Benefits
(in Rs. Cr. Per year)
1 Advanced Metering Infrastructure (AMI) 15.40
2 Peak Load Management(PLM) 4.10
3 Outage Management System (OMS) 2.60
4 Recovery by levying Reliability Charge 60.00
Total 82.10
Benefits during Year 2031
Sr. no.
Initiative Benefits (in Rs. Cr. Per year)
1 Advanced Metering Infrastructure (AMI) 49.14
2 Peak Load Management(PLM) 13.08
3 Outage Management System (OMS) 8.30
4 Recovery by levying Reliability Charge 184.00
Total 254.52
24
2 BACKGROUND 2.1 SMART CITY GURGAON - The Concept It is for quite some time now that the concept of developing Gurgaon as a
Smart City has been under discussion at the highest levels in the
government, State as well as the Union. On 29th
1. Strengthening / Up-gradation / Modernization of Power Transmission,
Sub-transmission & Distribution infrastructure to assure 24x7 Power
Supply to all categories of consumers
April 2015, Hon’ble Union
Minister of State (Independent Charge) for Power, Coal and New &
Renewable Energy co-chaired a meeting with the Hon’ble Chief Minister
Haryana at Power Grid (PGCIL) Gurgaon wherein it was decided to
improve power situation in Gurgaon primarily with the two objectives to start
with i.e. to provide 24x7 electricity to all categories of consumers and to
make Gurgaon a Generator free city within next one year and subsequently
scaling up the up-gradation to make it a Smart City. The Union Minister
called upon PGCIL to take the lead as Nodal Agency and prepare a road
map in this regard. Among the various subjects discussed during the
meeting, the following three were prioritized as the necessary ones to start
with:
2. Map Gurgaon through Geographical Information System (GIS)
technology
3. Smart Traffic & Surveillance Management.
Gurgaon has earned the distinction of being one of the fastest growing
cities in the country, so far as electricity is concerned. The data shows that
electricity consumption in Gurgaon, especially after 2000-01 has been
increasing at a comparatively higher rate of 12-13% per annum meaning
thereby that the demand has been getting almost doubled every five years.
Even today, the growth does not seem to have slowed down. That is why it
25
has not been possible to erect the distribution system commensurate with
the demand. Whatever expenditure has been done in the past got
consumed just on the addition of infrastructure, mainly the addition of DTs
and it has not been possible to augment or repair the existing network at all.
As a result, the existing infrastructure gradually became overstretched and
overloaded, demanding an exhaustive overhauling not only in terms of
extension of network but also forcing us to think about creation of more
220/66/11 KV or 66/11 KV S-stns. at load centres.
Before proceeding further, we shall need to understand the physical and
geographical divisions which can be hypothetically chosen for the ease of
carrying out the development work under the smart city project. Broadly
speaking, Gurgaon can be divided in to two major zones. One is Sectors 1
to 57 and the other is from Sectors 58 to 115. Interestingly, Sectors 1 to 57
are almost fully occupied forming the present day Gurgaon whereas
Sectors 58 to 115 are almost unoccupied. Let’s take up these two divisions
one by one:
Sectors 1 to 57
Delhi-Jaipur highway, which is passing through the middle of sectors 1 to
57 provide a natural zoning of the city and is required to be planned
accordingly. Old Gurgaon is comparatively more congested with major
right-of-ways problems would require a detailed engineering at micro level
for laying, augmentation and to provide additional infrastructure to combat
future growth while it is comparatively less cumbersome in new Gurgaon to
carry out the development works and erect new feeders.
Presently, the distribution network in sectors 1 to 57 is 220 / 66 / 11 / 0.435
kV on radial 11 kV distribution feeders having least reliability and the
complete feeder is vulnerable to outages anywhere in the sections The
reliability requirement can only be taken care only if the feeders are in ring-
main mode.
26
In case of any fault in any one of the feeders, the supply to consumers can
not be restored unless the fault is attended. Most of the feeders are
overloaded and require bifurcation to take up the load growth from time to
time. 66 kV substations are also overloaded and it may not be possible for
further capacity additions at these substations to take up the demand after
2017-18.
Total urban area in Gurgaon is being fed through are 525 nos. out of which
around 250 are urban feeders and 275 are independent feeders of the
group housing societies, commercial establishments, industry and some
government departments. Sectors 58 to 115
This is being called greater Gurgaon spread all across and around sectors
1 to 57. Development in these sectors has just started at some selected
locations but broadly speaking, it is yet to kick off. Almost all the land,
around 27000 acres in area, is owned by different builders / developers and
most of the development in these sectors is likely to come up in the shape
of multi-storey buildings and GHS. Therefore, the electricity load in these
sectors is expected to be much higher as compared to the sectors
developed by HUDA and HSIIDC. Expecting a lot of construction activity
and the demand, 11 kV distribution system was not thought of as the
adequate one to cope with. Therefore, a conscious decision has been
taken to introduce 220 / 33 / 0.435 kV system in these upcoming sectors.
The Union Minister during the meeting in April 2015 called upon the District
Administration and all the departmental heads in Gurgaon to co-ordinate
and associate with PGCIL for implementation and completion of the project
in a period of one year. The PGCIL, in the process, held some preliminary
meetings with the different departmental heads including DHBVN and
HVPN and collected the basic data for the purpose of analysis and
preparation of a Detailed Project Report (DPR).
27
Following are the few challenges in Gurgaon, the cognizance of
which needs to be taken at the time of conceiving of the project::
1. Old Gurgaon, which is located on the right side of Delhi-Jaipur
highway, has a peak demand of more than 700 MVA (nearly 50% of
total demand) and is highly congested with no right of ways available
for further laying of 11 kV feeders; neither overhead nor underground.
2. To meet the future load growth as well as providing 24x7 power
supply is very difficult to maintain without changing the voltage level
from 11 kV to 33 kV, wherever possible, at most of the congested
places..
3. New 33 or 11 kV systems shall have to be laid in advance before
dismantling/upgrading the present system which would require
sufficient land and right-of-ways for 66/11 or 33/11 kV or 11 KV
switching stations and lines, whether overhead or underground.
4. There are underground pipelines of other utilities also like water,
sewage, telecom, gas etc. which will not allow the underground
electricity cables to be laid so easily.
Primary Bottleneck in establishment of Smart Grid: Inadequate Electrical Infrastructure
It is the up-gradation of distribution system which is the major area of
concern. Not only that the existing system is badly overstretched and
overloaded, there are no right-of-ways available from where the bifurcation
can be planned.There are a number of inadequacies in existing electrical
infrastructure which makes it unsuitable to adopt Smart Grid initiatives like
automated control through SCADA,AMI implementation, roof top SPVs
integration etc.Some of inadequacies which needs to be addressed before
introduction of Smart grid initiatives are as follow:
• Most of the feeders are running Overhead, multiple circuit per
poledue to non-availability of right of way.Conversion of existing
28
Overhead network to underground network is first requirement of this
project to make feeders fault free,reduce down-time of feeders,
address existing and future problem of right of way in rapidly
urbanising Gurgaon town and to make the electrical network robust
for adoption of smart grid features.
• Air-break switches(GO switches) get damaged frequently due to
weathering,have less useful life, are not reliable and safe for
operation of higher DT capacity.Replacement of Air-break
switches(GO switches) with RMUs is second requirement of electrical
infra. to ensure automatic isolation of faulty sections,safety of network
and quick response to SCADA
• Snapping of 11 kV as well as LT conductor is a normal
feature.Conversion of overhead network to underground network will
avoid such scenario
• Radialfeeders which disallow back feeding of a faulty feeder due to
absence of ring main system of feeders
• Insufficient redundancyat 11 KV and DT level which is required to be
enhanced to 100% to successful operation of 11 KV Ring Main
System
• These all features make the whole distribution system so vulnerable
to breakdowns and tripping that the consumers’ dream of getting
uninterrupted power supply with smart features has remained a
dream. There are cities in India where breakdowns and tripping are
almost nil, transformer damage rate is almost zero and there is
almost a 100% redundancy at distribution level.In most of the best
distribution utilities in India, Underground network in Urban areas has
already been proven a success over overhead network enabling
these utilities to successfully introduce concepts of SCADA and other
features of Smart Grid.
29
All these features will lead to establishment of Smart Grid and Smart City
so far as electricity is concerned.
Therefore, there is a need for development of smart grid leading to smart
cities, to provide quality life for its citizens for inclusive growth, generate
employment as well as reduce pressure of infrastructure requirement on
other large cities. Strengths of Smart Grid technologies can transform cities
to Smart cities which shall facilitate in increasing human productivity,
realization of inherent urban potential and lesser use of natural resources
per person, information access & processing to improve citizen services
etc.
2.2 Gurgaon Smart Grid Leading to Smart City Gurgaon is one of Delhi's four major satellite towns and is part of the
National Capital Region of Delhi. It has an area of 1253 km² and its
demography provides a gateway for access to many other important towns
of the Northern Region. Its proximity to the capital and the Indira Gandhi
International Airport has caused its urbanization to take place at a much
faster rate in recent years and has effectuated Gurgaon to become a
leading cosmopolitan city of the world. It has also become an industrial and
financial hub of the country with one of the highest per capita income
having been recorded here. The per capita consumption of electricity in
Gurgaon is around 4000 kWh per annum which is expected to increase to
up to 6400 kWh by 2022.
Consumers in Gurgaon get electricity from Dakshin Haryana Bijli Vitran
Nigam Limited (DHBVN), one of the distribution utilities catering to
Southern part of Haryana. It is a State Government owned company and
governed by the Board of Directors of DHBVN appointed by the state
government. Gurgaon operation circle is one of the four operation circles
under Delhi zone and is headed by an officer of the rank of Superintending
Engineer. It has three operation divisions under its jurisdiction:
30
i. City Division
ii. Sub-Urban Division
iii. Manesar Division
On 8th
1. To take up Gurgaon town and Industrial Area of Manesar together in
one go would be extremely difficult not only in terms of execution on
the ground but also in terms of arrangement of funds to finance it.
October 2015, a meeting was held at Shram Shakti Bhawan, New
Delhi. It was co-chaired by Hon’ble Chief Minister Haryana and the Hon’ble
MoS (IC) Power, Coal and Renewable Energy Departments, Government
of India wherein issue of setting up smart grid in Gurgaon was discussed at
length and to make it an iconic city for rest of the country to follow.
Presentations by PGCIL and Power Department Haryana were made
during the meeting.
Following conclusions were arrived at so far as Smart Grid Project of
Gurgaon is concerned:
2. For the ease of execution, proposal of power Department Haryana to
break up the project in smaller parts was considered an appropriate
approach, which was as under:
a) Part I: Sectors 1 – 57, which is almost fully occupied and we know it
as present day Gurgaon. This part will be taken up first.
b) Part II: Sectors 58 to 115,major portion of which is still vacant, land
with some small constructions coming up here and there. This part
can wait and the work here will be taken up subsequently in next few
years.
c) Part III: IMT Manesar area which does not experience much of the
electricity problems as on date and will be taken up at a later date.
d) The load projections on which the work will be planned will be up to
2030-31
31
e) The total cost estimations of the project, though assessed at around
Rs. 12000 crores for all the three parts, would be around Rs. 7000
crores for Part I.
f) Part I would further be divided in to 4 phases, as explained under:
i) Phase I: Jurisdictional area of DLF Operation Subdivision of DHBVN,
which lies on left side of Delhi-Jaipur Highway after crossing the toll
plaza and going up to IFFCO chowk
ii) Phase II: Jurisdictional areas of South City and Sohna Road
Subdivisions of DHBVN, which lie on the left side of Delhi-Jaipur
highway from IFFCO chowk to almost Kherki Daula toll plaza
iii) Phase III: Jurisdictional areas of Maruti and IDC subdivisions of
DHBVN, which lie on the right side of Delhi-Jaipur highway from toll
plaza to Jharsa chowk covering mainly Udyog Vihar and the old city
area including Sadar Baazar etc.
iv) Phase IV: Jurisdictional areas of Kadipur, New Colony and New
Palam Vihar S/Ds of DHBVN covering rest of the areas under
sectors 1-57.
(Copy of the Minutes of meeting dated 8th October are annexed at
Annexure
A for reference.)
32
2.3 Geographical Map of Gurgaon under Smart Grid
33
2.4 Sectors to be covered under Part-1
34
2.5 Part-1 Phase-1 DLF City Subdivision area DLF City Sub Division is a medium sized neighbourhood in east Gurgaon
which falls under Gurgaon sub-urban division of Gurgaon Circle. It is an
important residential and commercial hub of Gurgaon and a cosmopolitan
locality with people from all parts of India living in harmony with each other.
The area under DLF subdivision being the most disturbed and most
revenue earning, so far as electricity is concerned, will be taken up in
Phase I to effectuate and adopt advanced smart grid technologies to
improve upon the existing sub-transmission and distribution system. Its cost
has been estimated at around Rs. 1382 crores (Distribution at INR
653crores + Transmission at INR 702 crores + consultancy charges at INR
27 crores) approximately.
35
2.6 Demographic Statistics The Demographic profile of the proposed project area “DLF City Sub
Division” in Gurgaon City Division is as under:
Location Area in sq km
Population (Nos.) Average literacy
rate
Population Density
(Nos./km2) Total Urban Rural
DLF Sub
Division
20 Sq.
Km 1.5 lacs 100% 0%
About
90%
7,500 person
/km2
2.7 Electricity Profile of DLF City Sub Division in Gurgaon Profile of DLF City Sub Division in Gurgaon, in the year 2014-15 is as
under:
• 29144 Nos. of consumer with an overall annual consumption of 742
MU
• The peak demand of the area is about 225 MW
• Annual billed Energy is 681 MU and estimated AT&C losses are
11.91%
• 2 Nos. major and 65 Nos. minor transformer failures take place
annually, which are typically attended & restored within 3 hours
• Approx. 1205 Nos. of line outages take place annually, which are
typically attended in 160 minutes.
• The area comprises only of LT and HT consumers. There are 29144
Nos. of consumers. LT Consumers-28926, HT Consumers-218.
• Total Sanctioned load of DLF Sub-Division - 542 MW.
• Total DTs installed under DLF Sub-Division - 732 nos.(Maintained by
DHBVN = 462; Maintained by Single point Consumers = 270)
• Total installed Capacity of DTs of DLF Sub-Division – 464 MVA.
• Total Nos. of existing 11KV Feeders – 88 nos.
36
• Total Load of existing 11KV Feeders – 225 MW.
• HT line length: 234 km
• LT line length: 444 km
• Load Projection up to FY 2031 (DLF Sub-Division) for Smart City
Project of Gurgaon City – 784 MW
• Line Loss Trend (%)
37
• Future Load Projection (MW) of DLF City Subdivision
2.8 Scope Broadly, the scope of work under the proposed project covers the
following:
• Analysis of present Transmission and Distribution system
• Identify issues and constraints and propose remedy for the same
• Identify various smart grid technologies to address areas of concern
• Prepare BOQ, cost estimates along with benefits
• Arrangement of Finances
• Bidding Process and Award of Contracts
• Execution & Supervision
315
528585
784
0
100
200
300
400
500
600
700
800
900
2015 2020 2025 2031
Load
in M
W
Year
Peak Load in MW
2015
2020
2025
2031
38
3 DISTRIBUTION 3.1 Analysis of existing infrastructure and Identification of
Challenges
DHBVN is one of the good distribution utilities in India, who have set the
best standards in operational practices. The distribution business in
Gurgaon is running at comparatively low AT&C losses which reflect the
efforts made in the recent past to bring down the losses and to ensure high
collection efficiency. However, on front of ensuring reliable and quality
power supply to its consumers 24×7, DHBVN is lagging in some areas of
Gurgaon due to various reasons. Factors hampering DHBVN performance
in ensuring reliable and quality power supply in Gurgaon despite the
availability of surplus power in the state are listed below:
1. Radial electrical Network
Electrical network at 11 kV voltage level in Gurgaon is a radial network
which practically means that the 11 kV feeders emanating from a 220/66/11
kV substation feed their respective areas in isolation and in case of any
fault occurring in the line, the whole area gets switched off till such time the
fault is attended. Also, since there is no-ring main system at 11 kV level,
there is hardly any possibility of restoring the supply on any section through
feeding back from another source.
2. Policy of Independent feeder
As per existing policy of DHBVN, a consumer can opt and demand for
single point supply on 66KV/33KV/11KV feeder if the sanctioned load is
250 kVA or more. However, due to the commercial constraint of billing of
consumer from Substation end, it is not possible to back feed the load of
consumer in case of a fault in main feeder of consumer.
39
3. Non-availability of Right-of-Way
At present, because of a large number of Urban and Independent feeders,
right-of-way for erection of a new feeder is extremely difficult and not at
possible in most of the cases.
. 4. Multiple 11 kV Feeders on a Pole
Because of erection of multiple feeders on single pole because of right-of-
way problems and congestion, permit to work (PTW) has to to be taken on
all the feeders running on a pole with multiple circuits, idf fault occurs in any
of these bunched feeders. It leads to unnecessary loss of sale of power and
reduces reliability of supply.
5. Absence of provision for back-feeding LT network
In case of fault in a distribution transformer, there is no provision for back
feeding the related LT lines emanating from the secondary side of a
distribution transformer.
6. Manual Fault Rectification
Process of identification, isolation and back feeding of faulty portion of a
feeder is manual. It takes long outage durations and reduces reliability of
power supply.
7. Unregulated Constructions
There are certain pockets in Gurgaon City Like DLF Phase-III U Block
where plot owners are building plots up to 7 storeys on plot size measuring
as low as 60 sq. yards or even 40 yards. Because of these types of
unregulated constructions, load is growing in an unpredictable and
exponential manner. DHBVN is not able to keep up pace with load growth
in such pockets due to unavailability of land for creation of new Plinth
40
mounted / Pole mounted substations. Unless construction in such areas is
regulated by DTCP/Municipal Corporation, load requirement of these areas
will always create pressure on existing electrical infrastructure.
Other Challenges include Capacity Inadequacy, Inadequate reactive
compensation, absence of SCADA & Automation, Poor voltage regulation
in distribution feeder, overloading of transformers and most of all, no
redundancy level at all.
Existing electrical infrastructure and shortcomings are illustrated below:
Fig. A: 7 Storey building under construction on a 60 sq.yd. plot in U Block DLF-III
41
Fig. B:Other Multi storey buildings under construction on 60 sq.yd. plots in U Block DLF-III
42
Fig C: Multiple 11 KV Feeders on same poles
43
Fig. D: Right of way problem due to Multiple 11 KV Feeder Networks
44
Fig. E: Narrow Lanes leading to issue to safe Horizontal clearance
45
Fig.F: Open H-Pole substation posing a threat to human and stray animals life
Fig G: Multiple LT Networks passing through LT Poles
46
Fig. H: Overcrowded LT Poles with meters and Outgoing Service Lines
47
4 TRANSMISSION
4.1 Analysis and Challenges in Gurgaon transmission network Gurgaon has witnessed power demand growth in proportion to the city's
population growth rate. Peak Demand requirement has risen exponentially
in past one decade. In order to meet the rising demand, a nos. of steps has
been taken up to strengthen its Transmission and Distribution network.
Presently, Gurgaon receives power from two (2) Nos. 400/220 kV
Substations namely Daultabad (945 MVA) & Secor-72 (630 MVA) with
cumulative transformation capacity of 1575 MVA. 400/220 kV Panchgaon
(1000 MVA) substation (PG) is commissioned and is being interconnected
with 220 kV Panchgaon (HVPN) for dispersal of power. Part of the demand
is also served through 220 kV Samaypur, 220 kV Pali and 66 kV BBMB,
Delhi Substations.
Power Supply feeding points for Gurgaon
48
The Gurgaon city has 3,70,797 consumers having peak
demand of 1400 MW
Power is dispersed through Seven (7) 220 kV substation
(220/66 kV & 220/33 kV) at
Badshahpur,
Sector 52A,
IMT Manesar,
Daultabad,
Sector-56,
Sector-72 &
BBMB Delhi,
1860 MVA [220/66 kV, 1760 MVA & 220/33 kV - 100MVA].
Further in the downstream network, thirty four (34) nos. 66 kV
substations with installed capacity 1991 MVA transformation
capacity feed power to DHVBN in Gurgaon. Existing power
supply arrangement of Gurgaon
49
4.2 Challenges in Gurgaon Transmission System Presently Gurgaon Transmission network faces challenges like inadequate
redundancy of 220 kV lines as well as power transformers. These 220 kV
transmission lines and power transformer get critically loaded during
contingency conditions and peak summer.
4.3 Transmission System Studies Gurgaon City witnessed about 1100 MW peak demand in 2012-13,
whereas it increased to 1250 MW & 1400 MW in 2013-14 & 2014-15
respectively, which is about 12-15% annualized growth rate. Demand
growth at such a rapid pace may not sustain in future and may get
moderated to about 8-10 % p.a. in coming years. However while doing
demand growth analysis, demand met through DG (10%) as well as DLF
Gas plant (104 MW), for year 2014-15 has been considered. Analysis
reveals that, peak demand requirement shall increase to about 3500 MW
by 2022.
To assure 24x7 quality power supply to the model Gurgaon Smart City,
Transmission and Distribution needs to be strengthened to meet massive
demand requirements rising on day to day basis with the horizontal and
vertical growth of the city. In this regard, based on inputs like demand data
(node wise), information about existing and planned transmission system,
network topology etc., detailed system studies have been carried for
planning of transmission system considering peak demand scenario by
HVPN.
.
50
5 DEVELOPING THE SMART GRID
In this era of advent of modern technology into the electrical system, it is
possible to make the present system more robust and economically viable
simultaneously using Smart Grid technologies and IT interventions. These
technologies co-ordinate the needs and capabilities of all the stakeholders
of power supply chain viz. generators, grid operators, distributor, end users
and facilitate electricity market in a way to optimize asset utilization,
resource optimization, control and operation with minimum losses and
enhanced quality. This ensures more reliable power along with smart
utilization of available technology to make the today’s cumbersome and
sophisticated activities easier and accurate. Most importantly, consumer
satisfaction becomes the ultimate motto and customers are empowered to
interact with the utility. Therefore smart grid technologies in the field of
Monitoring & Measurements, Communication, Control & Automation, IT
infrastructure, energy efficiency etc. shall be integrated with present system
at DLF City Sub Division in Gurgaon.
51
5.1 What is Smart Grid Typical structure of the Smart Grid is shown at Figure-1.
Figure-1: Typical smart grid structure
Major intelligent enabling technologies which are building blocks of the
“Smart Grid” are given as under:
• Advanced Metering Infrastructure: It consists of Smart Meters,
Communication Network, Head End equipment, Meter Data
Management System and Analytics. It enables online energy
consumption visualization and helps in controlling leakages of power by
facilitating immediate temper alert and short duration energy audits.
Efficiency of system is also improved through enablement of automated
52
reading, demand response, remote load dis/re-connection, control of
critical & non-critical loads etc.
• Integrated Communication System: Communication system
comprising of optical fibre network, GPRS, RF Mesh, PLC etc., utilized
by various Smart Grid Technologies for communication of data &
information between control centre and consumers / equipment.
• Peak Load Management: Using advanced metering infrastructure
information, peak load management is done by way of variable intra-day
tariff, load curtailment, device control mechanisms etc.
• Outage Management System: It increases reliability of the power
supply and reduces outage frequency & duration. Faults types &
locations are automatically reported to control centre and maintenance
crew is dispatched in optimized way directly to fault location depending
upon location of team & fault. Also various monitoring devices are
installed which help in checking healthiness of equipment.
• Renewable Energy: It is an essential part of Smart grid to reduce the
dependency on conventional resources and to make cities more
sustainable and clean.
• Distributed Generation: Distributed resources like solar, biomass,
wind etc. reduce transmission and distribution grid requirements and
feed loads directly.
• Energy Storage: Energy Storage helps in balancing intermittency,
uncertainty and variability of renewable resources in any grid and make
them more stable & secure.
• Electric Vehicle: Use of electric vehicles reduces CO2 emission by
transportation sector and make environment healthier. It also helps in
grid balancing as it may be used to absorb excess power in grid, or to
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supply power back to grid at peak times through enabling of suitable
market mechanisms.
• Power Quality Management: Sensors & equipment installed at
different nodes of Smart Grid measures power quality and activate
suitable mitigation techniques to make power free with electrical
pollution.
The various attributes of Smart Grid are as shown in the Figure 2 on the
next page
Figure 2: Smart grid attributes
Implementations of various technologies of Smart Grid in DLF City Sub
Division have been discussed with DHBVN. Considering present system
54
architecture and progression of initiatives like R-APDRP, it is emerged that
following Smart Grid attributes/technologies would be appropriate for
implementation in DLF City Sub Division:
(i) Advanced Metering Infrastructure (AMI)
(ii) Peak Load Management (PLM)
(iii) Power Quality Management (PQM)
In addition to the above, implementation of Real time Distribution
Transformer Monitoring shall also be done.
The details of above implementations are described in following
paragraphs.
5.2 Advanced Metering Infrastructure (AMI) Advanced Metering Infrastructure (AMI) is a system that measures,
collects, transfers and analyzes energy usage and communicates with
metering devices either on request or on a schedule basis. This system
includes Smart meters, communication systems, data concentrator units,
customer associated systems, Meter Data Acquisition System (MDAS),
Meter Data Management (MDM) software, and business analytics. AMI
shall be installed in DLF City Sub Division of Gurgaon to improve
visualization of energy consumption & power quality at consumer level and
facilitate peak load management through demand side management /
demand response. AMI enables two-way communications hence has the
potential to communicate from the utility to the meter and vice-versa. Utility
can have online consumption record of each individual in fifteen (15)
minutes time block which will be helpful in analyzing consumption pattern &
forecasting energy usage. At the same time consumer can access online
data for their consumption, which would help them in controlling monthly
bills. Automatic meter recording would mitigate requirement of manual
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process of meter reading, which would make billing system more accurate,
efficient and fast. Using two way communication system pricing signals may
also be sent to consumer participating in demand response mechanism.
With the available data received in advanced metering infrastructure, utility
has following tools to make system smart:
i. Energy audits can be done at distribution transformer level to
check theft
ii. Load pattern of individual consumer can be observed
iii. Withdrawal of power above sanctioned load may be checked
iv. Tampering may be checked in near real time
v. Control actions from control centre for load curtailment may be
taken
vi. Remote connection / disconnection is possible
vii. Sending alert to consumer for higher load withdrawal, bill non-
payment etc. is possible
viii. For variable pricing, signal transmission is possible
DHBVN is implementing various IT related initiatives like GIS mapping,
billing application, consumer indexing etc. in its areas. Since these
applications are also required for Smart Grid project, setting up separate
system would not be prudent and existing set up shall be also utilized for
Smart Grid attributes to economize cost. GIS mapping, Asset Mapping,
Consumer Indexing and billing application etc. covered under the RAPDRP
/ other schemes shall be integrated with Smart Grid system.
Under advanced metering infrastructure, smart meters shall be installed for
all domestic, commercial, industrial, HT, street lights and other consumers
as identified by DHBVN. Meter Data Acquisition System (MDAS), Meter
Data Management System (MDMS) along with necessary hardware /
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software shall be installed at control center. Interface of various IT
applications / processes installed in R-APDRP shall be done as below:
1. Billing Application– Billing data of Smart meters installed in Smart
Grid shall be pushed to billing application installed in R-APDRP at the
end of billing cycle.
2. GIS mapping and consumer indexing data shall be integrated with
advanced metering infrastructure applications and periodic
synchronization/ updation shall be carried out.
A proposed layout of Advanced Metering Infrastructure component is
shown in Figure-3.
Figure-3: Proposed architecture of AMI
Communication medium between Smart Meters & Data Concentrator Unit
shall be RF / PLC. Data from DCU to MDAS shall be communicated
through GPRS. In control centre Meter Data Acquisition System & Meter
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Data Management Software shall be hoisted, which will collect, store and
analyze data received from DCU / Meters.
Suitable cyber security system shall be installed to protect the system from
viruses and intrusions. Security system shall create different zones,
separated with firewalls. Inner zone will be accessible to operators in
DHBVN, which would consist of workstations, servers for all applications,
data archive server, storage devices and network management system.
The middle zone subsystem will have centralized management console,
web portal / consumer portal servers. Outer zone would be accessible to
the external users and other integrated systems. All the servers/stations will
be equipped with Host based Intrusion Detection & Prevention System
(IDPS). Patch management tools will be provided to update the patches
received by the various OEMs e.g. patches for anti-virus, firewalls,
application software etc.
MDAS shall be the core application for interface to the field devices. It shall
perform following functions:
• Acquisition of meter data, i.e. poll meters for data collection. On
demand read and ping of meters
• Two way communication with the meter, including load control
• Sending remote firmware upgrades/programmable parameters to
meters/ DCU
• Sending load control signals to the meters
• Maintaining time sync with DCU / meters
• Sending Connect/ Disconnect, and pricing signals to the Smart Meter.
Control signals, event messages etc. shall be handled on priority.
• Reporting communication history for meters and DCU
• Supporting encryption of data transmission for secure communication
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Meter Data Management system shall take information from MDAS for
further analysis and structured presentation of the same to user. It shall
have following functions:
• Asset Management
• AMI Installation Support
• Meter Data Analysis
• Exception Management
• Service Orders Generation
• Customer Service Support
• Reporting
• Revenue Protection Support
• Demand Control/Demand Response Support
• User Friendly Interface
• Integration with other Systems
Implementation of complete infrastructure as mentioned above shall
provide an excellent tool in the hand of utility for operation of efficient,
accurate, intelligent and customer friendly metering system. Details of
implementation have been discussed below:
5.2.1 Number of Smart Meters Required
DLF City Sub Division has total 29144 Nos. of consumers. Following
considerations have been made to arrive at the actual quantities of smart
meters for the project:
• Energy meters on distribution transformer are being installed under
R-APDRP, therefore these locations have not been considered here
for smart meters under AMI. MDAS/MDM being provided under R-
APDRP would be integrated with MDAS/MDM of AMI to receive DT
meter data for energy audit.
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• Quantity of different types of the smart meters is based on master
data of DLF City subdivision as on 30.09.15
Accordingly 29144 consumers shall be covered for smart meter installation
under AMI. Break up of Smart Meter requirement is shown in the following
table:
Table -1: Smart meter requirement
Sl. No.
Type of meter No.
1. Single phase whole current meter 9380
2. Three phase whole current meter 18602
3. LT CT operated meter 944
4. HT 11 KV CT operated meter 218
5. HT 66 KV CT operated meter 1
Total
29145
5.3 Peak Load Management (PLM) During peak load conditions, utilities overdraw power from the grid defying
entitlement schedules, which impacts grid reliability and costly power due to
Unscheduled Interchange (UI) charges. At the same time utility need to
setup infrastructure to meet the peak load whereas at other times such
infrastructure largely remains under-utilized. Therefore for economic
operation of the power network, peak load management is an essential
requirement. The goal of peak load management is to encourage the
consumer to use less energy during peak hours, or to move the time of
energy use to off-peak times such as night-time and weekends. It is the
modification of consumer demand for energy through various methods such
as financial incentives and partial curtailment. Peak demand management
does not necessarily decrease total energy consumption, but could be
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expected to reduce the need for investments in networks and/or power
plants. Load shifting involves shifting energy consumption to another time
period, typically when prices/consumption are lower.
The PLM system collects information from various other systems. It takes
data from the Load forecast software, the power scheduler, and the
availability sub systems. Based on these inputs power demand-supply is
determined, deficit/surplus is worked out and demand response signals are
sent out to the consumers. Peak Load Management does not mean load
shedding. Figure - 4 shows the peak load shifting.
Figure - 4: Peak load management
Peak Load Management works in two ways:
a) Demand Response (DR):Demand response refer to mechanisms used
to encourage consumers to voluntarily trim electricity usage at specific
times of the day (such as peak hours) during high electricity prices
(Time of Use tariffs), or during emergencies (such as preventing a
blackout). Depending on the generation capacity, however, demand
response may also be used to shift demand (load) from peak to off-peak
at times of high production and low demand. In demand response the
consumer voluntarily manages his demand in response to some
signals/incentives given by the utility. Dynamic/ ToU pricing of electricity
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and other incentives/schemes are communicated to the consumer via
smart meter/ Web and SMS. The consumer responds by reducing
consumption by agreed percentage or limiting consumption to agreed
kW. b) Demand Side Management (DSM):In case of demand management,
the utility in a sense "owns the switch" and sheds loads only when the
stability or reliability of the electrical distribution system is threatened. It
works in three ways: (i) Settable Relay: In this mechanism smartmeters have relay with
switch, which is designed for operation till a threshold load. Any
increase beyond threshold load, operates the relay and switch is
opened to cut-off power supply. Re-connection attempts may be
carried out as per defined number of times. In reconnection attempts
if load is reduced then connection is made otherwise it is locked and
opened with intervention of utility. (ii) Critical & Non-Critical load ckt: Wherever consumer agrees to
segregate load at meter point between critical and non-critical loads
smart meter will feed two separate load circuits. The relay & switch of
non-critical load ckt is opened during peak load times.
In DLF City Sub Division management of peak demand would be done
using smart meters, which have been proposed to be installed in consumer
premises as part of advanced metering infrastructure. Peak load
management application would be installed in conjunction with advanced
metering infrastructure software to manage peak load in following ways:
5.3.1 DR and DSM for All Consumers
Peak load management through demand response & demand side
management through settable relay / switch in smart meters shall be
implemented for all the consumers. Implementation shall be as below:
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i. ToU tariff shall be notified for all the consumers with significant
difference between peak duration tariff and off-peak duration tariff so
as to encourage them to participate in demand response. Two way
communication facility available with smart meters shall help in
sending variable price signal / alerts to consumers for reducing load.
ii. In demand side management using settable relay, load curtailment
shall be enacted during peak load hours to reduce the power
consumption by users. Users below the load allowed at that time shall
remain connected and if their consumption exceed the allowed level,
they will be disconnected after due warning. Reconnection attempts
shall be allowed three times in every five minutes. Failing to reduce
the load, disconnection shall be locked for thirty minutes.
Popularization of this technique will help in limiting the loads similar to
inverters and batteries.
5.3.2 Power Quality Improvement
Power quality is a measure of the fitness of electrical power fed into the
consumer devices. Without good quality power, an electrical device (or
load) may malfunction, fail prematurely, become economically unviable due
to losses or not operate at all. There are various parameters like voltage
sag/swell, low power factor, current/voltage harmonics, transients etc.
which are related to quality of power and deviation in their value from
reference results into poor quality of power.
The power system in DLF City Sub Division of Gurgaon is designed for a
balanced three phase operation. However, unbalanced operation, harmonic
currents etc. cause extra losses in the system. Similarly over voltages,
transients etc. cause additional stress to the insulation. Low power factor
and large harmonic content increase the losses and reduce the active
power transmission capability of the system. The list of power quality issues
generally present at the distribution level is quite extensive. However, the
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most prominent ones that have direct impact on the system efficiency and
security include harmonics, unbalance, poor power factor and zero
sequence components (resulting in neutral current). These are classical
power quality issues, which are addressed by various passive solutions.
However, advancements in power electronics and control have led to much
efficient active solutions generally referred to as Active Power Filters. A
typical schematic of active power filter is shown in figure below.Active
Power Filters are considered to be a single window solution virtually for all
the current related issues. It may be noticed that active filters are shunt
devices that inject a current comprised of all notorious components required
by load (eg. harmonics, negative and zero sequence, reactive component
etc.) that are unhealthy for the overall system and cause high losses.
Technically, an active filter is based on STATCOM principles, with a DC
bus formed by a large capacitor. Thus, modern active filters provide highly
flexible solutions, simultaneously addressing issues like current harmonics,
load unbalance in phases, reactive power demand, neutral current etc. with
priorities configurable by the user. It may be noted that active filters provide
an indirect solution to voltage harmonics issue by limiting current harmonics
travelling into the distribution system.
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Figure -5: Schematic for active power filter
In view of the above, deployment of active power filter at 10 distribution
transformers shall be carried out. This would not only make the system
more efficient and reliable but also would help in enhancing the awareness
and understanding of power quality within the utility. In order to identify the
suitable DTs for installation of active filters, we need to carry out power
quality measurement survey of distribution transformers at different
locations in DLF City Sub Division. After measurement & analysis of
recorded data for the distribution transformer, top 10 most suited one will be
recommended for installation of active power filter equipment because of
large content of harmonic currents, unbalancing etc.
5.4 Distribution Transformer Monitoring Unit (DTMU) Distribution transformers are very important equipment near end
consumers, which are needed to be kept healthy from the point of view of
utility as well consumers as any defect in these would result into outage of
many consumers and considerable revenue loss to utility. Distribution
transformers are generally installed in any locality based on the loads
requisitioned by respective consumers and estimated future requirements.
However due to economic uplift of society and penetration of new
appliances in consumer’s premises continue to grow, which outpace the
estimated rise in load considered by utility earlier. Any carelessness in
monitoring of distribution transformers may soon result into overloading
operations and subsequent failures. Further leakage of oil, heating of
terminal connection etc. are some of the other reasons which cause failure
of distribution transformers. Therefore Distribution Transformer Monitoring
Units (DTMUs) are becoming necessary to be installed for healthy
operation of systems.
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DTMU is the equipment through which real time monitoring of oil
temperature, oil level & LT side load current / parameters of distribution
transformer can be done. Any abnormality in these parameters triggers an
exception event and reports to control centre for further actions. Based on
the DTMU data, maintenance teams can also take proactive measures to
repair /replace the distribution transformer.
Distribution Transformer Monitoring Unit are proposed to be installed on all
the transformers owned by DHBVN as a part of Smart Grid initiative in DLF
City Sub Division of Gurgaon. The installation of DTMUs will provide online
information of loading, oil temperature & oil level which may prevent failure
of transformer on account of overloading, low oil level, miniature internal
faults etc. There are total 1200 nos. distribution transformers installed in the
system on which DTMU’s have to be installed.
5.5 Smart Grid Control Centre A Smart Grid Control Centre shall be setup in any existing facility to be
decided by DHBVN, where all the software applications along with required
hardware systems shall be installed. All the field equipment shall send the
data to the control centre, where processing of the same shall be done
using software applications to get useful information. The control centre for
Smart Grid project implementation shall require three discrete areas for
operation control (5m X 5m), server (4m X 4m) and UPS & battery (4m X
4m). Smart Grid control centre will require 10 KVA UPS power for operation
of servers, workstation, operation console etc. Building & other civil works
have not been considered in this report.
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6 BENEFITS OF SMART GRID INITIATIVES
Smart Grid project is being done as an initiative to embed new technologies
in distribution system in small scale and successful implementation would
draw the way forward for large scale implementation. Therefore for such a
project finding economic viability and feasibility would be prejudice as
qualitative benefits are of paramount importance. Large scale
implementation in future may only prove economies of operation. Benefits
of proposed initiatives in DLF City Sub Division are mentioned below:
6.1 Benefits of Advanced Metering Infrastructure Benefits from AMI may be categorized as:
System Operation Benefits: These are primarily associated with reduction
in meter reading and associated management and administrative support,
increased meter reading accuracy, and improved utility asset management,
easier energy theft detection and easier outage management.
Customer Service Benefits: These are associated with early detection of
meter failures, billing accuracy improvements, faster service restoration,
flexible billing cycles, providing a variety of Smart Grid features like time-
based tariff options to customers, and creating customer energy profiles for
targeting Energy Efficiency/Demand Response programs.
Financial Benefits: These accrue to the utility from reduced equipment
and equipment maintenance costs, reduced support expenses, faster
restoration and shorter outages.
Details of the benefits due to AMI are described below:
6.1.1 Reduction in Meter Reading Cost
In AMI, meter reading shall be communicated to control room automatically
in every 15 minute time block. This will reduce meter reading cost on
account of reduction in manpower.
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Presently all the meters proposed to be replaced with smart meters (29144
Nos.) in Smart Grid project are manually read for which 8 meter readers
have been deployed. Cost savings through the reduction in manual meter
reads will be realized through a reduction in meter readers thus reduction in
both in-house and contractor labor costs. Meter reader workforce
reductions shall occur over the course of the AMI implementation period,
and DHBVN may plan to realize these workforce reductions through natural
attrition and work re-assignment over time. Quantifiable benefits related to
manual meter reading savings are expected over business case time
horizon.
6.1.2 Reduction in Field and Meter Services
Smart metering and communication infrastructure enables utilities to
perform several functions remotely that would otherwise require a field visit
to the customer premise. As a result, significant cost savings through the
reduction in the number of personnel for field and meter services can be
achieved. Benefits in this area can be seen in the reduction in manual
disconnect / reconnect of meters, single consumer outages, need for
manual re-reads, as well as customer equipment problem.
6.1.3 Reduction in Off Cycle Trips
Remote connect / disconnect feature of AMI smart meters enables utilities
to turn on and off services for new and cancelled accounts remotely without
a field trip. This benefit not only applies to the ability to turn on and off
services for regular move-in / move-out of customers, but also provides the
ability to cancel service for non-paying customers. As a result, significant
cost savings can be realized through the reduction in need for personnel
and transportation costs to turn on / off services. As a result of AMI, cost
savings will also be seen through the time saved in off cycle reads / special
reads due to reduction in meter access challenges.Approximate 15000 nos.
trips are carried out in DLF City monthly for manual
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disconnection/connection, manual off-cycle reads, special meter reads etc.
in one month, which may be reduced by implementation of AMI.
6.1.4 Reduction in Outage Field Trip
AMI implementation is expected to result in cost savings associated with
reduced outage field trips to customer premises. With the ability to provide
near real-time power and outage status information, AMI systems are able
to test for loss of voltage at the service point and shall be able to detect
outage conditions as well as obtain restoration status indication. As a result,
“OK on Arrival” field trips will be virtually eliminated, in AMI areas, thereby
leading to cost savings.With AMI, DHBVN will be able to determine whether
the cause of an outage is the result of an electrical problem with the
customer’s equipment. This automated determination will help save
dispatch labor for customer incidents that involve equipment failure.
6.1.5 Reduction in Unaccounted Energy
Unaccounted Energy in the areas of meter tampering, energy theft, meter
inaccuracy, and dead / stopped meters results in significant revenue loss
for utilities. Through the use of smart meters and sophisticated MDM
systems, unaccounted energy can be detected early and revenue losses
related to unmetered energy can be reduced.
6.1.6 Theft / Tamper Detection & Reduction
AMI systems significantly aid in the early detection of meter tampering and
energy theft. Smart meters can detect tampers like Meter Cover open
detection, Neutral disturbance, Magnetic Interference etc. and these tamper
alerts are communicated immediately to control centre. Also energy audit
for each integration period is carried out in control centre applications for
predefined set of meters. Any discrepancy in energy reading of main meter
and sum of energies of subordinate meters is found by analytical engines
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and same is notified to operators. Also analytics software allows
identification of anomalous patterns of energy consumption by consumers
which are may be due to theft and tampering. As per historical data, 8.24%
is the billing inefficiency losses. This component includes energy loss due
to theft and tampering and with implementation of AMI these losses are
likely to reduce.
6.1.7 Faster Identification of Dead Meters
Smart meters have feature to send power loss signal or last gasp message
to control centre. Thus implementation of AMI systems helps utilities in
quick identification of dead and/or stopped meters that can no longer
measure electricity consumption. Such signals/ messages are correlated
with signals/ messages received from other smart meters in that locality. If
found an isolated case then possibility of being dead is confirmed and
notified to operator. This early identification helps utilities to take steps
quickly towards repairing or replacing the dead meter, thereby reducing
potential revenue losses. Non-technical losses before billing include such
losses, which are likely to be reduced after implementation of AMI.
6.1.8 Improved Distribution System Savings
It is expected that AMI shall help in improvements in the distribution system
planning efforts. AMI will provide detailed information across the distribution
network that can be used to optimize investments in infrastructure
improvements. Data available by AMI like Interval (time-based)
consumption data at the customer level (and ability to aggregate up to
transformer and circuit levels), voltage information collected at each
premise, momentary outage information etc. shall help in better
management of system.
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6.1.9 Improved Distribution System Management
Interval consumption data can be aggregated at the transformer level to
help identify under-used and overloaded transformers, as well as to
properly size replacement transformers. Information received through AMI
will provide more granular level system health and performance details.
Using more detailed information from AMI enables DHBVN to more
accurately forecast load growth and evaluate system investments resulting
in improved asset planning and strategies.
Further due to peak load management up-gradation work of distribution
system may be deferred. We consider that approx. 25 MW (10% of peak
load) peak shaving may be done using suitable peak load mechanism. For
this 25 MW power flow, distribution system expansion may be deferred by
at least one year resulting into saving of interest cost on borrowed capital.
6.1.10 Operational Efficiency Improvement
An important benefit of AMI is the cost savings realized through efficiency
improvements in customer call volume and management. Meter reading
errors are expected to be virtually eliminated and the need for calculation of
estimated bills due to access issues will be significantly reduced, in AMI
areas. Efforts to raise awareness regarding AMI through marketing
campaigns and customer education will increase customer adoption of self-
service leading to an overall reduction in call volume. The potential to
reduce float between meter read and customer billing will also drive greater
benefits for DHBVN.
6.1.11 Reduction in Estimated Bills
The ability to remotely read meters on a frequent basis greatly reduces bills
based on estimation that often result from meter access issues that
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currently prevent meter readers from obtaining reads in hard to access
areas at the customer premise. Fewer customer service resources are thus
expected to review exception reports, resolve billing errors and process
adjustments.
6.1.12 Reduction in Customer Call Volume
Comprehensive marketing campaigns and customer awareness programs
will educate customers about the self-service options available to them
throughout the AMI roll-out. DLF City Sub Division receives large number of
calls annually related to customer inquiries. DHBVN is currently planning on
further developing its customer self-service capabilities, including web and
IVR enhancements channels. DHBVN plan to increase the self-service
marketing efforts during the AMI roll out, encouraging portal use and
promoting self-service within AMI communications. As a fair estimate we
can expect a 5% reduction in call volume as a result of greater self-service
adoption. This will also be driven by lower bill inquiry call volume due to
reductions in bills based on estimation. The reduction in call volume over
the life span will result in cost savings.
6.1.12.1 Reduction in Float between Meter Read and Customer Billing
AMI is expected to enable all accounts within AMI territories i.e. project
area to be billed on the monthly basis on the billing window. Currently bills
which are produced during different days will now be generated
simultaneously as a result of AMI. This will accelerate DHBVN’s revenue
stream and improve its cash flow.
6.2 Benefits of Peak Load Management
PLM programs like demand response/demand side management will help
DHBVN in pecuniary benefits in following terms:
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A) Reduction in Power Purchase Cost: Generally time of the day and
season of the year plays an important role in peak power
requirements. It may be 1-2% of the total time, but infrastructure
creation is required to meet such load only. Therefore peak shaving
benefits utility as capital infusion in infrastructure may be deferred for
some years depending upon peak load reduced. This capital may be
used to service operational requirements making utilities more
competitive.
B) To meet peak load, utilities make arrangement of extra power by short
term purchases through bilateral agreements or energy exchanges.
Any short term power purchase that too in peak hours is always
costly. With PLM, short term purchases may be reduced.
C) Reduction in peak load would reduce maximum current through lines,
thereby reducing I2
As per historical data, peak load in DLF City Sub Division is 225 MW with
daily 3 hours peak load ( timings:- 7 pm to 10 pm ). Objective of PLM at
DLF City Sub Division shall be to reduce peak load by about 10% i.e
.approx 25 MW.
R losses. Thus technical losses would be reduced.
6.3 Other Benefits
Apart from above functionalities, other activities shall have following
benefits:
(i) Power Quality Improvement: Reduction in losses, better
performance of equipment / appliances
(ii) Distribution Transformer Monitoring Units: Better knowledge of asset
(distribution transformer) utilization, reduction in outage, predictive
maintenance
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7 SCADA IMPLEMENTATION
Grid automation has helped distribution utilities across the world in
increasing their reliability, improving quality of power and optimum
utilization of their assets, resulting in higher customer satisfaction.
Automation decreases human intervention and helps utilities restore the
faulty equipment in minimum duration.
7.1 Components of Grid Automation Grid Automation has following components:
i. Software Modules installed in the control room
ii. Hardware installed in the control room
iii. Communication system like GPRS, CDMA, RF Mesh, OFC etc.
iv. Communication equipment i.e. RTU & FRTU
v. Motorized Switches for remote operation of grid
vi. Sensors such as MFTs, Weather Transducers etc.
7.2 Illustration of automated fault restoration by SCADA
Electrical system has been designed in a ring and if a fault occurs in any
part, the faulty portion is isolated and power is fed through alternate path.
The below mentioned diagram illustrates how the ring system works.
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75
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If the closing and opening of load break switches is done manually, it takes
time and requires man power. But the same can be done remotely sitting in
the control room through grid automation system. In grid automation system
motorized load break switch/circuit breakers are installed which can be
controlled remotely through communication system and communication
equipment. Communication equipment are Remote Terminal Unit which
are microprocessor-controlled electronic device that interfaces objects in
the physical world to SCADA (supervisory control and data acquisition)
system by transmitting telemetry data to a master system, and by using
messages from the master supervisory system to control connected objects
. Communication system being used is optical fibre as it is most reliable and
has the potential to cater to future needs in terms of bandwidth. Moreover
laying optical fibre cable is very convenient, being laid over and above the
power cable, no separate digging or boring is required to lay optical fibre.
Sensors like MFTs, Weather transducers are used to collect information like
voltage, current, temperature, wind direction etc. and feed these to
communication equipment’s as mentioned above so that the
sameinformation can be taken to control room over communication system
like optical fibre cable. This is information is received by the front end
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server of SCADA system which in turn shares it with various application
servers like SCADA , DMS , OMS , EMS servers etc. for their processing
and storing relevant information in database .
Supervisory Control and Data Acquisition (SCADA) shall provide a variety
of functions that can be grouped to provide core capabilities such as:
• Telemetry
• Monitoring and Alarming
• Controlling
7.3 Requirement of Software Applications with SCADA For optimum utilization of SCADA following software applications will be required:
7.3.1 Distribution Management System(DMS) Generally Distribution Management Systems include following
Sub_Systems over and above the SCADA application: -
I. Voltage/VAR regulation/control.
II. Load shed application.
III. Trouble call and outage management.
IV. Fault management (location/isolation) and System Restoration.
V. Load flow application.
VI. Network connectivity analysis/ Load calibration.
VII. Loss minimization/Loss calculation/Energy accounting.
VIII. Dynamic Network coloring.
IX. Load forecast.
X. Work order management.
XI. Geographical information system.
Voltage / VAR Control:The VVC function monitors the set of
telemetered voltage measurements associated with each VC-
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controllable device. If the VC function detects a limit violation, it
advises the corrective control actions to operator. VVC-controllable
devices are the set of transformers and capacitor banks selected by
the operator for VC control. Corrective controls include
incrementing/decrementing the transformer tap position, and
switching in/out a capacitor in a capacitor bank.
Load Shed Application
: -The load-shed application automates and
optimizes the process of selecting the best combination of switches to
open in order to shed the desired amount of load. The load shed
application recommends different possible combinations of switches
to open, in order to meet the requirement. The operator is presented
with various combinations of switching operations, which will result in
a total amount of load shed, which closely resembles the specified
total. The operator can then chose any of the recommended actions,
and execute them through a single action at the console. The
recommendation is based on an evaluation of load priorities and
current load levels.
Trouble call & Outage Management:-
I. Call handling
A trouble call and outage
management system shall be provided to handle telephone calls from
customers of the utility’s reporting electric service problems. TCOMS
provides interactive voice response and automatic call dispatch
facility to track and report problems, analyze and group problems by
type and dispatch problems individually or by groups to appropriate
work crews for resolution:
II. Call Analysis.
III. Task Assignment.
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IV. Outage Management and reporting
V. Fault and outage Management
VI. Based on the data organized by the call analysis function, an
additional consolidation of information shall be provided by the
TCOMS.
VII. A comprehensive view of the situation of the network shall be
presented to the dispatcher, allowing to quickly assessing the
nature and importance of the reported troubles.
VIII. The corresponding network trouble tickets shall be assigned to
repair crews, and the progress of the work properly managed,
including the monitoring of partial restorations.
Fault Management (location/isolation) and system Restoration
The Fault Management & System Restoration function provides
assistance to the DMS dispatcher for detection, localization, isolation
and restoration of the distribution system. In case of permanent fault
in the Distribution network, the function proposes switching plans to
restore the supply in the healthy parts of the faulty feeder. The
function shall also be usable and compute switching plans to assist in
the cases of reconfiguration of the network required by maintenance
operations or partial load transfer of an overloaded feeder to the
neighboring feeders.
: -
Load Flow Application: -A power distribution network normally
consists of a large number of devices; a correspondingly large
number of measurements are thus needed to describe its state. In
most cases, however, relatively small portions of the electrical
quantities at network locations are actually measured. The Load flow
application provides values for those electrical quantities at network
location where measurements are not available.
These values are useful both in terms of providing a more
80
complete view of the network to the operator in real-time, and as the
basis for the remaining DMS software for which the load flow results
serve as inputs.
Network Connectivity Analysis
The NCA function determines the topology of the
distribution network based on the physical connectivity of devices in
the network and the status of connecting devices such as switches.
The electrical status of each device in the network can be presented
dynamically to the operator on one-line displays. The dynamic display
rendering of electrical status provides an indication of energized/de-
energized state, and whether the device forms part of a loop or a
parallel path.
: - The network connectivity analysis
function forms the basis of the analysis/decision/action tools available
to operators. Aside from providing live/dead status information to the
operator in real-time, the results of the NCA function serve as inputs
to virtually every other application in the DMS software package.
Loss Minimization/Loss calculation/energy accounting
The loss minimization via feeder reconfiguration study application
identifies an alternative network topology, which, while meeting the
same nodal power demands, incurs smaller distribution losses. To
this end, the function recommends a series of switching operations,
each consisting of opening one switch and closing another switch, in
order to transfer load from one feeder to another.
: -The loss
minimization optimization study functions provide recommendations,
which may allow operators to reduce overall system losses, thereby
reducing operating costs. Also, the loss minimization
recommendations would result in improved quality of service and
increased reliability.
Dynamic Network coloring: - The Dynamic Network Coloring shall
enable the DMS operator to visualize the operational conditions
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present in the distribution network. Different types of coloring shall be
available.
I. Automatic coloring
II. On-demand coloring.
Work orders Management
I. The description of the elementary operations to be performed.
: - Work Orders Management (WOM) shall
provide a flexible way to automate the management of job forms
describing the construction and maintenance works on the electrical
network and support the job sheet description and the full life cycle of
the job form. These job forms shall consists of the following
information:
II. The life cycle of the job forms, from their creation through
approval, execution and eventually archival of the form.
III. The necessary information to the operator pertaining to the job
being done such as electrical section getting affected, time
expected to carry out the job and operations not permitted to
perform during this period.
Geographical Information System
: -Geographical Information includes
the network diagram superimposed on geographically map of the
area. The breakers and switch status (on/off/lock) are indicated.
Feeder condition (Lie/dead/Maintenance) is also displayed on the
screen.
7.3.2 Outage Management System
The Outage Management (OM) shall be a collection of functions, tools, and
procedures, which an operator or dispatcher uses to manage the detection,
location, isolation, correction, and restoration of faults, which occur
unexpectedly on the utility electric network.
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1. OM shall also be used to facilitate the preparation and resolution of
outages, which are planned for the network. OM processes shall be
used to expedite the execution of the tasks associated with the
handling of outages that affect the network and provide support to
operators at all stages of the outage life cycle starting from events
such as the reception of a trouble call or a SCADA indication of an
outage, until power is restored to all customers.OMS processes shall
further be used to resolve the outage whether the outage is at the
level of a single distribution transformer providing power to one or few
energy consumers or the level of a primary substation providing
power to many energy consumers.
2. All operations, authorizations, and comments, which occur in these
processes shall be documented and collected in outage records. It
shall be possible that this information is made available to external
sites for further statistical analysis and processing.
3. OM shall provide the automatic processing of an outage record used
to monitor changes in the network and have an internal interface to
Crew Management, Switching Procedure Management, and Trouble
Call Management.
4. Data communication to external applications shall be enabled through
web service adapters in the framework of a Service Oriented
Architecture.
7.3.3 EMS Applications at Smart Grid Control Centre:
The Smart Grid Control Centre will have to be fully equipped to discharge
its responsibility as defined in Smart Grid Code & all applicable codes. The
functional requirements will need following tools for operator to optimally
meet challenges of operating a modern SLDC/SSCC.
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(a) Load Forecast (b) Outage Scheduler (c) State Estimation (SE) (d) Contingency Analysis (CA) (e) Optimal Power Flow (OPF) (f) Transmission capacity monitoring (TCM) (g) Operation monitor
7.3.4 Switching Procedure Management
Switching Procedure Management (SPM) of the Network Control Center
System shall allow the operator to create, edit, select, sort, print, execute,
and store switching procedures. It shall be possible to create entries in a
switching procedure manually by recording the operator's actions in a
simulation mode, by modifying an existing procedure, by recording the
operator's actions in real-time mode, or automatically by applications, such
as, Distribution Network Applications.
1. The SPM capabilities shall enable preparing, studying and executing
clearance operations. SPM shall also be used to execute switching
operations to alleviate fault conditions and to restore power following
a fault, as well as for the optimization of the network operation.
Switching Procedure Management shall provide management
capabilities via summary displays and easy-to-use menus.
2. Load shedding shall enable an operator to shed or restore a list of
load control elements, shed or restore to a specified MW load
curtailment, shed or restore a percentage of the total available load in
a list, or rotate shedding through a list of load control elements.
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7.4 Benefits of Implementation of SCADA & Software Applications
Combined benefits of implementation of SCADA along with supporting software applications illustrated above can be summarized under following main heads:
7.4.1 Leading functionality
SCADA functionality is based on advanced and proven algorithms, for
instance for fault location, as well as for restoration and network
reconfiguration. The traditional SCADA functionality, such as on-line
network monitoring data, is complemented with an advanced DMS network
database. This enables new real-time applications for improved network
monitoring and outage management. Fault location along the feeder can be
determined instantaneously and exact fault location can be presented on a
geographical map.
7.4.2 Operation and informative presentation of the network
Using SCADA, the operator can monitor the network state and related
measurements, and then perform the control actions needed. Versatile
process displays, lists and application tools for network tracing, locating
components and reporting provide the necessary information for different
users. Dynamic line coloring delivers information about topological
connectivity, powered/un-powered network sections and about overloaded
lines and voltage drops. The entire network can be viewed on detailed
geographical maps in raster and vector formats, as well as in a schematic
diagram. Zooming, panning and de-cluttering enable a clear overview and
allow users to focus on a specific area to obtain detailed information. The
functions are at hand via process displays, maps and schematic network
views. In geographical views, several map layers can be used to provide
the details needed. The system automatically selects the correct map layer
in accordance with the current zoom level. Network effects caused by
85
distributed generation can be analyzed and corrective actions planned and
simulated.
This can already be done in the network planning phase or alternatively
during the real-time operation. Also short-term forecasts of generation can
be used so that operational changes and controls for load or generation
can be planned and informed in advance.
SCADA extends traditional SCADA functionalities by providing
geographically based network views and advanced distribution
management functions over the entire distribution network.
7.4.3 Dependable Operational Safety
SCADA prevents simultaneous operation of primary equipment. It reserves
the device, and verifies whether the selected object can be operated,
before executing the command. Additionally, interlocking schemes prevent
dangerous operations that might otherwise damage primary equipment.
Only authorized users can override interlocking and other locked
operations. Common safety procedures require that any mechanical or
electrical equipment can be locked out and tagged out before being worked
on. Responsible for meeting safety requirements, rules and regulations,
SCADA includes a lock-out/tag-out function. The lock-out/tag-out function
ensures that control of objects in the application or other operations are
properly secured prior to and during, for example, maintenance or servicing
work. An application object in tag-out state can easily be identified on the
HMI by the intuitive tag-out display symbol. SCADA’s dynamic network
coloring function provides the operator with quick access to information
about the powered, un-powered and earthed parts of the network.Alarming
objects are also visualized. The network coloring, combined with object
control simulation of SCADA, ensure the safe and correct operation of our
electrical network.
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7.4.4 Intelligent switch order management
The switch order management function supports planning, simulation,
execution and reporting of scheduled maintenance outage operations. The
intelligent algorithms automatically optimize the switching sequence to
minimize the number of affected customers. Through its operation planning
functionality, SCADA allows both automatic and manual switch orders to
open and close switching devices in the distribution network or performing
other actions during the outage. Switch order documents with user-defined
actions can be created based on company-specific Microsoft Word
templates. The switching planning takes the technical constraints of the
network into account, such as voltage drop and load level for each line
section. Furthermore, it eliminates damage to primary equipment and the
network during maintenance outages by ensuring correct relay protection
operation at all times.With the world map view of SCADA, detailed
consumer information is just a few clicks away.
With help of SCADA , detailed consumer information is available instantaneously
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7.4.5 Reduction in Outage duration
The advanced distribution management functionality reduces outage time
from hours to minutes. The system retrieves registered data about fault
currents or impedance from protection and control IEDs. It also utilizes data
provided by Feeder Terminal Units (FTU) and fault indicators. This data
together with the network model is used to calculate the fault location,
which is instantaneously shown in the network view.Then, restoration
support provides the operator with a list of recommended actions, such as
reconfiguration of the entire network to minimize the outage area. This
allows for fault isolation and fast and safe network restoration. Restoration
can also be executed completely automatically. In a fault situation, the
GPS-based field crew management enables the operator to quickly find the
nearest service crew.With the help of the integrated geographical map, the
operator can guide the crew to the fault location, where necessary manual
switching operations can be performed to isolate the fault. Or the crew can
access the system via mobile communications or hand-held computers,
which further simplifies the entire process. With the advanced fault
management functionality, you can provide excellent service to your
customers. SCADA system helps to locate the customer calling in and
allows to immediately inform the customer about the fault and its expected
repair time. Integration of an Automatic Meter Infrastructure (AMI) system
into SCADA offers the possibility to use the communication and smart
meter infrastructure created, mainly for energy metering, to also remotely
monitor the low voltage networks. This function enables spontaneous
alarms to be received regarding network faults and voltage violations. It can
also read measurement values from the energy meters. Alarms from
several customer meters can be combined and faults in the low-voltage
network can be located. SCADA also features a Trouble Call Management
function that stores and presents any type of customer contact. The
function provides also customers with information about network
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disturbances and collects information about the faults, such as the nature
and location of the fault.
7.4.6 Fast and efficient reporting of operational statistics and outages
Outage reports covering faults, maintenance outages and also reclosing
trips. Based on the data stored in a relational database, various statistics
and indices, such as SAIDI, SAIFI, CAIDI and CAIFI *) can be created. Both
SCADA and company-specific reporting tools can be used. The detailed
storage of outage information even allows the retrieval of customer-specific
outage histories, which can significantly improve customer service.
Individual customer outage reports can be automatically generated if
requested by the authorities. To achieve a complete view of the network
condition and service quality for action planning, these reports(including, for
example, frequent fault locations and device failures) can be integrated into
the company’s business system (ERP) or utilized in a data warehouse
implementation. Measurement reports that present currents, voltages and
active and reactive power in both numerical and graphical formats. The
reports can contain, for instance, five-minute or hourly average values.
Energy reports in both numerical and graphical formats containing active
and reactive energy data with yearly, monthly, weekly, daily and hourly
statistics based on three-minute average values. Customized reports are
easily produced using the flexible Historian that can store all process data
for long periods and refine the data into meaningful information. This gives
a clear view of the situation in the primary process and allows for optimized
utilization of the power and primary equipment. Reports and statistics are
easily produced. The information is visualized in the form of various graphs,
trends and numerical reports. The numerical reports can utilize embedded
Microsoft Excel which provides commonly known tools for further data
refinement.
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7.5 Implementation of SCADA in project area: Architecture & BOQ To achieve the objectives of Smart Grid SCADA control centre, the
requisite SCADA system will be installed in the project area which will
control the transmission/sub transmission network of the voltage level 33
kV & above. The 11 kV distribution network in the project area will also be
supervised and controlled by SCADA system. This SCADA system will
carry out the following functions at Transmission level and Distribution level.
i. Resource management for optimum utilization capable to automate
transmission and distribution system with proven efficiency and
reliability based on the steadfast digital technologies. The centralize
station to facilitate energy auditing , preparation of energy accounts
and losses up to DT level having sync with billing and outage
management & response time.
ii. The system architecture will facilitate crew management system,
maintenance management system, power system network
applications, load balancing & network management, distribution loss
minimization, and power quality monitoring & reliability assessment.
iii. The proposed central station to provide higher level of automation at
substation to elevate reliability of power system network and
unmanned operation of substations with a coordinated control, is
required to be established the state of art available technologies,
features, facilities in hardware and software which could at least
deliver and handle SCADA/EMS/ADMS/OMS/GIS/CIS/Asset
management/weather forecasting/Load forecasting/resource
management/Visual Monitoring System/Fire management
system/Access control system/Building Management system ,
integration of renewable energies and real time two way
communication from source to sink to ensure resilient 24x7 power to
the consumers.
90
7.5.1 Activities to be performed in Distribution System:
i. Remote operation of all the distribution transformers
ii. Automatic detection and isolation of faulty area using FPI
iii. Automatic restoration of supply by backfeeding of feeder from
alternate source and supply after isolation of faulty portion
iv. Remote monitoring of varies parameters of distribution transformers
v. Due to availability of data in database , the SAIDI , SAIFI and CAIFI
can be created and monitored for improved power quality
vi. Load forecasting of area
vii. Health monitoring of all the breakers/transformers installed on 11 kV
network
viii. To help in Short circuit current calculation of the distribution network
7.5.2 Common SCADA Control centre One common SCADA control room for transmission system and distribution
system has been proposed at 220 kV S/Stn, Sector 52, Gurgaon and back
up control centre is proposed to be built in HIsar town. In the present
scenario, it will handle the 11 No. 66 kV S/Stn(7 No. New Substations and 4
no. existing systems) and 11 kV network of the entire project area (Phase I)
i.e. DLF subdivision of DHBVN. In future this SCADA control room will
control complete Gurgaon from sector 1 to sector 115 having no. of
consumers.
7.5.3 Communication Network For remote operation of distribution transformers and fault identification and
rectification at 11 kV;563 no. RMU of various specifications has been
proposed. The RMU’s are SCADA compatible (i.e. motorized RMU’s with
FRTU’s and FPI). The data will be collected by FRTU’s at each RMU’s and
91
same will be transmitted to nearby 66 kV feeding S/Stn through optical
fiber. At the substation, the data will be collected and merged at FODP
installed at each substation. From substation to SCADA control room; the
data will be transmitted / transported through optical fiber and will be
collected at SCADA control by Front End Server installed in SCADA control
room. This data will be shared with different application servers like
SCADA,DMS,OMS,and EMS etc.
7.5.4 Field Equipments The following equipment are required in the field for distribution purpose :
RMU ( Ring Main Units)
Indoor type11 KV SF6 type extensible and motorized 5 way smart Ring Main Unit (RMU) complete with two VCB and three LBS with FRTU and FPI as per IS
Nos. 5
Indoor type 11 KV SF6 type extensible and motorized 4 way smart Ring Main Unit (RMU) complete with two VCB and two LBS with FRTU and FPI as per IS
Nos. 5
Indoor type 11 KV SF6 type extensible and motorized 3 way smart Ring Main Unit (RMU) complete with one VCB and two LBS with FRTU and FPI as per IS
Nos. 5
Indoor type 11 KV SF6 type extensible and motorized 3 way smart Ring Main Unit (RMU) complete with all three VCB and with FRTU and FPI as per IS
Nos. 5
Indoor type 11 KV SF6 type extensible and motorized one way smart Ring Main Unit (RMU) complete with LB and with FPI as per IS
Nos. 5
Indoor type 11 KV SF6 type extensible and motorized one way smart Ring Main Unit (RMU) complete with VCB and FPI as per IS
Nos. 5
Outdoor type 11 KV SF6 type non extensible and motorized 5 way smart Ring Main Unit (RMU) complete with two VCB and three LBS with FRTU and FPI as per IS
Nos. 17
Outdoor type11 KV SF6 type extensible and motorized 4 way smart Ring Main Unit (RMU) complete with two VCB and two LBS with FRTU and FPI as per IS
Nos. 83
92
Outdoor type 11 KV SF6 type extensible and motorized 3 way smart Ring Main Unit (RMU) complete with one VCB and two LBS with FRTU and FPI as per IS
Nos. 418
Outdoor type 11 KV SF6 type extensible and motorized 3 way smart Ring Main Unit (RMU) complete with all three VCB and with FRTU and FPI as per IS
Nos. 5
Outdoor type 11 KV SF6 type extensible and motorized one way smart Ring Main Unit (RMU) complete with LB and with FPI as per IS
Nos. 5
Outdoor type 11 KV SF6 type extensible and motorized one way smart Ring Main Unit (RMU) complete with VCB and FPI as per IS
Nos. 5
Optical Fiber
Un- Armoured Optical Fiber (48 Fibers) along with the all accessories connectors, switches etc.
KM 222
Armoured Optical Fiber (48 Fibers) along with the all accessories connectors, switches etc.
KM 37
PLB-HDPE (Permanently Lubricated High Density Poly Ethylene) pipe 40 mm. dia pipe for laying optical Fiber Cable.
KM 259
7.5.5 Components of SCADA Control room The following equipment are required in the SCADA Control Room :
Server/Workstation Hardware Unit MCC BCC Total Qty
Reason for Incorporating
SCADA,ADMS,OMS,EMS Server Nos. 2 2 4.00 Application Server
for SCADA, DMS,OMS,EMS
DMS Simulation Server Nos. 2 0 2.00 Training of operators
DMS Realtime Historian Server Nos. 2 2 4.00 History parameters of all equipment
FEP,Communication,ICCP Integration Server Nos. 2 2 4.00 Communication
server
ISR Server {Data Server} Nos. 2 2 4.00 Data Retrieval/Archival
NMS Server Nos. 2 2 4.00
Network Management for
monitoring health of communication
system
Developmental Server Nos. 3 3 6.00 Coding requirement
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Web/Directory Server Nos. 2 2 4.00 Interface with
devices which need data on internet
Asset Management Server Nos. 2 2 4.00 Life Cycle
management of Equipment
Visual Monitoring Server Nos. 4 4 8.00 Physical
Surveillance of Substations
Weather Forecast System Nos. 2 2 2.00 For weather
forecasting for Load forecasting
LV Automation Monitoring (Non-Technical Losses) Server Nos. 4 4 8.00 Calculation of
Losses LED based Video Projection system with 2X3 Module configuration with each module at least 67" diagonal with common projector
Set 1 1 2.00 For having single screen view of whole system
Hardware for BMS Lot 1 1 2.00 Building HVAC ,
Accees control and related hardware
Sensors Nos. 1000.00 MFTs
Cameras for VMS Lot 50.00 Physical Survilance of Substations
SCADA software Lot 1 1 2.00
Software of ADMS ISR Software Lot 1 1 2.00 DMS software Lot 1 1 2.00 OMS Software (HV, MV & LV System) Lot 1 1 2.00
DTS software Lot 1 1 2.00 Software for Training of operators
Developmental software Lot 1 1 2.00 Software for Bug fixing and other
coding requirement
Network Management Software Lot 1 1 2.00
Network Management for
monitoring health of communication
system WEB/Network security software (Included in IT Package) Lot 1 1 2.00 For Cyber security
purposes
RDBMS package (Included in ISR) Lot 1 1 2.00
Database Management
Software GIS Adaptor/Engine for importing data from GIS system under IT system
Lot 1 1 2.00 Importing data from GIS module
Field Client / Web Client Licences for ADMS System Lot 15.00 Software for
Interface with
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All the 66 kV breakers and 11 kV VCB’s at existing 66 kV S/Stns in the project area will be replaced/upgraded by the SCADA compatible Breakers/VCB’s .The 66 kV breakers and 11 kV VCB panels at new proposed 7 no. S/Stns will be SCADA compatible. The cost of the same has been considered in the BOQ and estimate of transmission system (Placed at Annexure B)
devices which need data on internet
Inbuilt Web Call Centre for Vip Consumers (Upto 1 Lakh) Lot 1 1 2.00
Call centre module for grievance redressal of consumers
Asset Management Lot 1 1 2.00 Software for Life
Cycle management of Equipments
AVTL (Automatic Vehicle Tracking System) Lot 1 1 2.00 Crew tracking
software Renewable Integration & Weather Forecasting
Lot 1 1 2.00 Software For
weather forecasting for Load forecasting
Building Management system + Access Control + Fire Management System
Lot 1 1 2.00 Software for Life
Cycle management of Equipments
UPS of Control Centre (20 kVA Redundant UPS) Lot 1 1 2.00 Uninterrupted power
supply
Visual Monitoring Software Lot 1 1 1.00 Software for Life
Cycle management of Equipments
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8 LOAD FORECASTING UPTO 2031 8.1 Calculation of Ultimate load of Project area ie DLF City
Subdivision up to 2031 for design of proposed electrical network
Based on field survey, load projections have been worked out which are
based on following criteria:
a)Plotted Area-Ultimate load projections upto 2031 for plotted area are
based on DHBVN load norms as per sales circular D-9/2014.
Exception:
For 60 sq. yards plots in DLF-III,load per plot has been assumed as
15KW/Plot(instead of 6 KW) and demand factor has been assumed at
0.7(instead of 0.4).This exception has been made keeping in mind present
construction practice in this area.DLF-III is located behind DLF Cyber city
and is a residential hub for workforce working in DLF Cyber
City.Presently,on a normal 60 Sq. yards plot,5-6 floors,with 02 dwelling
units per floor are being constructed.Entire building is being used for
P.G.accomodation and each room is being fitted with a 0.75 tonnes
A.C.Hence, load norm and demand factor has been modified to arrive at
ultimate load of this area.
b)MCG area-Ultimate load projection has been arrived at by study of
present load of MCG area and possibility of expansion of area by carrying
out physical survey of area and taking inputs of field staff
c)Single Point/HT connections:Sanctioned load of existing connections
has been taken as Ultimate load requirement for these category
connections as most of connections have been running for a long duration
and their load is not expected to go beyond their sanctioned load.
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d)Upcoming Load:Upcoming load has been calculated based on possible
load demand of sites which are earmarked in approved layout plans of
DTP/HUDA for commercial/residential projects, but are lying vacant as on
date.
Detail of Ultimate load sector wise Up to 2031
8.2 Load to be fed at 11 KV(Other than DLF V) SECTO
R LOAD IN MVA
24
ULTIMATE LOAD OF DLF-III
NATHUPUR VILL
EXISTING HT CONN LOAD
UPCOMING HT LOAD
TOTAL
PLOTTED AREA
MCG AREA IN PLOTTED DLF-III AREA
ON M.A. ROAD DLF-III
60 15 10 15 100
25
ULTIMATE LOAD OF DLF-II
EXISITNG HT CONN LOAD
HERITAGE SOCIETY
THE VILLAS GHS
UPCOMING HT LOAD
TOTAL
PLOTTED AREA DLF-II
MAJOR HT CONNECTIONS ON MG ROAD & BALANCE IN VARIOUS PHASES OF DLF-II
HERITAGE GROUP HOUSING SOCIETY ON MG ROAD
GROUP HOUSING SOCIETY IN VICINITY OF MG ROAD
PLOTTED AREA DLF-II
34 13 7.5 4.2 10 68.7
26
ULTIMATE LOAD OF GH BLK
SOA GHS, DLF-1
SIKANDERPUR VILL
EXISITNG HT CONN LOAD
UPCOMING LOAD
TOTAL
G AND H BLOCK DLF-1
GROUP HOUSING SOCIETY ON GURGAON FARIDABAD ROAD
MCG AREA HT CONNECTIONS NEAR GURU DRONACAHRYA METRO STATION, MG ROAD
NEAR GURU DRONACAHRYA METRO STATION, MG ROAD
8.4 7.2 6 9 15 45.6
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27
ULTIMATE LOAD OF PLOTTED HUDA 27
ULTIMATE LOAD OF S LOK B BLK
ULTIMATE LOAD OF DLF IV
EXISTING HT CONNECTION LOAD
UPCOMING HT LOAD
TOTAL
HUDA PLOTTED AREA SEC-27
PLOTTED AREA B BLOCK SUSHANT LOK-1
PLOTTED AREA DLF-IV
MAJOR HT CONNECTIONS NEAR GALLERIA MARKET AND NEAR HUDA CITY CENTRE, BALANCE IN DLF-IV AND B BLK SUSHANT LOK
5 8.5 7 25 10 55.5
25 A
LOAD OF NMC GHS
LOAD OF BEVELDERE PARK-1&2
OTHER LOAD
TOTAL
GROUP HOUSING SOCIETY ON NH-8 NEAR SHANKAR CHOWK
GROUP HOUSING SOCIETY NEAR RBS BUILDING, DLF CYBER CITY
1 4 2 7
26A
ULTIMATE LOAD OF PLOTTED DLF-1
EXISTING HT CONNECTION LOAD
UPCOMING HT LOAD
TOTAL
26 5 10 41
28
ULTIMATE LOAD OF PLOTTED HUDA 28
ULTIMATE LOAD OF A BLK S LOK
ULTIMATE LOAD OF DLF IV
EXISTING HT CONNECTION LOAD
CHK VILL+S VIHAR + M VIHAR
UPCOMING HT LOAD
TOTAL
98
PLOTTED AREA OF HUDA SEC-28
PLOTTED A BLOCK SUSHANT LOK-1
PLOTTED AREA DLF-IV
MAJOR HT CONNECTIONS ON MG ROAD,BALANCE LOAD OF GHSs NEAR GALLERIA MARKET
MCG AREA
3 8.1 4.2 61 15 15 106.3
42
ULTIMATE LOAD OF PLOTTED 42
EXISTING HT CONNECTIONS
UPCOMING HT CONNECTION LOAD
TOTAL
PLOTTED AREA OF HUDA SEC-42
HT CONNECTIONS OPP. SEC-43 SSTN.
OPP. SEC-43 SSTN.
5.7 11 5 21.7
43
ULTIMATE LOAD OF PLOTTED 43
ULTIMATE LOAD OF C,D,E BLK S LOK
ULTIMATE LOAD OF DLF IV
EXISTING HT CONNECTION LOAD
UPCOMING HT LOAD
TOTAL
PLOTTED AREA OF HUDA SEC-43
PLOTTED AREA OF SUSHANT LOK-1
PLOTTED AREA OF DLF-IV
HT CONNECTIONS ON HUDA CITY CENTRE TO GOLF COURSE ROAD,HUDA CITY CENTRE TO SEC 52 ROAD AND SEC-52 REDLIGHT TO GOLF COURSE
9.1 24.5 3.4 28 20 85 TOTAL 530.8
8.3 Table 8.3 Load to be fed at 66 KV &11 KV
99
It is to be noted that load of DLF Phase V is to be fed from 66 KV S-stn.
DLF V, where electrical infrastructure is to be laid by colonizer M/s DLF as
per future load requirement and as per electrification plan)
Detail of Load to be fed at 66 KV & 11 KV(in addition to load tabled at table
8.3)is tabled below:
S.No.
Sector Load in 2015 (in MVA)
Load in 2022 (in MVA)
Load in 2027 (in MVA)
Projected Load in 2031(in MVA) on Basis of Load growth estimation
Feeding Voltage Level of Load (In KV)
Remarks
1 Ambience Island, NH-24
7 21 40 60 66 Load of Ambience island will be shifted to 66 KV Ambience S-Stn.M/s Ambience has already applied for single point connection at 66 KV level
2 Dlf Cyber City
100 110 125 140 66 Load requirement is to be met from 220/66 KV S-Stn to be built for Cyber city
3 Rapid Metro
3 10 15 20 66 Load of Rapid Metro is to be shifted to Proposed 66 KV sec 56 S-Stn to be constructed by Rapid Metro
4 DLF PHASE 5
27 60 90 120 11 Load of DLF Phase V will be fed exclusively from DLF V S-Stn as network of Phase V is sufficient.Augmentation/construction of new 66 KV S-Stn will be carried out by M/s DLF Ltd for DLF V based on load growth
Total of Ultimate Load Up To 2031=A+B=531+340=871 MVA
100
8.4 Table 8.4 Load to be fed at Various Voltage levels
S.No. Voltage level Load to be fed
1 11 KV 651 MVA
2 66 KV 220 MVA
Total 871 MVA
8.5 Table 8.5:Year Wise Load Projection at Existing 03 No. 66/11 KV S-stns. and 07 no. proposed 66/11 KV S-stns.(Other than DLF V)
SR NO.
NAME OF
S/STN. AREA TO BE FED
ULTIMATE
LOAD (IN MVA)
LOAD BY END
OF 2017
LOAD BY
END OF
2022
LOAD BY
END OF
2027
LOAD BY
END OF
2031
TOTAL LOAD
1 66 KV
S/S MA ROAD
U Block,V Block,W block,T block, M.A. road DLF-III,Nathupur village 23 17 20 22 23 38
MVA Future HT Load 15 0 0 15 15
2 66 KV S/S Q
BLOCK
U Block DLF-III,Nathupur Village,P,Q,M,K block DLF-II, Heritage GHS,MG road HT
Connections,HT connections around DLF Cyber City
63 45.1 50 55 62.9 78 MVA
Future HT Load 15 0 3 8 15
3 66 KV
S/S MG ROAD
Sikanderpur Vill.,Nathuupur Vill. ,S Blk, T Blk , V Blk DLF-III, G Blk DLF-1, Silver Oaks, Garden estate GHS,
HT Connections around Guru Dronacharya Metro station
66 40.3 50 58 65.6 76 MVA
FUTURE LOAD NR D/C METRO STN. 10 0 4 6 10
4 66 KV ARJUN MARG
A,B,C,D,E,F,H,F block Dlf-1 49 34.8 40 44 48.7 49
MVA
5 66 KV
S/S SEC-28
Sector-27,28, DLF-IV 42 26.9 40 41 41.6 50 MVA Future HT Load 8 0 0 4 8
6
66 KV S/S
S/LOK,C-BLOCK
B,C.C1,D Block Sushant Lok-1 and HT Connections from HUDA City
centre to Sec-52 Chowk 55 40 50 52 54.8 65
MVA Future HT Load 10 0 0 5 10
101
7 66 KV S/S A- BLOCK
A Block S/Lok-1, DLF-IV, HT Connection of MG Road 30 21.1 25 28 30.1 40
MVA Future HT Load 10 2 6 10
8
66 KV S/S, L-
BLK(DLF-II)
DLF Phase-2, HT connections of MG Road
44 31.1 35 38 43.8 54
MVA 10 0 2 6 10
9 66 KV
S/S H.B.CKP.
Sarasvati Vihar, Maruti Vihar, Vill. Chakarpur, HT Connections of MG
road 28 19.5 20 25 27.5
28 MVA
10 66 KV
S/S SEC-43
Plotted area Huda Sector-42,43, GHS Sector-43, HT Connections of Golf course road upto sec-42 and
DLF-1 xrossing 43 30.8 40 42 45.3 53
MVA
Future HT load 10 0 2 10 10
TOTAL 531 306.6 383 465 531.3 531
8.6 Table 8.6:Total No. of 11 KV feeder to be laid Sstn. wise(Except DLF V)
SR NO
. NAME OF S/STN. AREA TO BE FED
LOAD (IN
MVA)
TOTAL LOAD
NOS. OF FEEDERS. TO BE LAID TOTAL
FEEDER PRESENT FUTURE
1 66 KV S/S MA ROAD
U Block,V Block,W block,T block, M.A. road DLF-III,Nathupur village 23 38
MVA 5 0 8
Future HT Load 15 0 3
2 66 KV S/S Q BLOCK
U Block DLF-III,Nathupur Village,P,Q,M,K block DLF-II, Heritage GHS,MG road HT
Connections,HT connections around DLF Cyber City
63 78 MVA
13 0 17
Future HT Load 15 0 4
3 66 KV S/S MG ROAD
Sikanderpur Vill.,Nathuupur Vill. ,S Blk, T Blk , V Blk DLF-III, G Blk DLF-1, Silver Oaks, Garden estate GHS,
HT Connections around Guru Dronacharya Metro station
66 76 MVA
13 0 16
FUTURE LOAD NR D/C METRO STN. 10 0 3
4 66 KV ARJUN MARG
A,B,C,D,E,F,H,F block Dlf-1 49 49
MVA 11 0 11
5 66 KV S/S SEC-28 Sector-27,28, DLF-IV 42 50
MVA 10 0
12 Future HT Load 8 0 2 6 66 KV S/S B,C.C1,D Block Sushant Lok-1 and 55 65 13 0 16
102
S/LOK,C-BLOCK HT Connections from HUDA City centre to Sec-52 Chowk
MVA
Future HT Load 10 0 3
7 66 KV S/S A- BLOCK
A Block S/Lok-1, DLF-IV, HT Connection of MG Road 30 40
MVA 7 0
10 Future HT Load 10 0 3
8 66 KV S/S, L- BLOCK(DLF-II)
DLF Phase-2, HT connections of MG Road
44 54 MVA
10 0 12
10 0 2
9 66 KV S/S H.B.C. CHAKKARPUR
Sarasvati Vihar, Maruti Vihar, Vill. Chakarpur, HT Connections of MG 28 28
MVA 6 0 6
10 66 KV S/S SEC-43
Plotted area Huda Sector-42,43, GHS Sector-43, HT Connections of Golf course road upto sec-42 and
DLF-1 xrossing 43 53
MVA 10 0
12
Future HT load 10 0 2
TOTAL 531 531 98 22 120
8.7 Table 8.7 :DT Installation schedule to meet out Urban load(Other GHS and Single point connections)for meeting Ultimate Load Up to 2031
Year wise
Requirement
Detail of Utilization of existing
DT / Installation of New DT
Capacity of DT ( In
KVA)
400 500 630 1000
Up to 2022 Existing DT to be Utilized
13 109 21 5
New DT to be Installed Initially ie by end of 2017
19 0 144 65
DT at end of 2022
32 109 165 70
Up to 2027 New DT to be added due to augmentation before end of 2027
0 0 0 109
New DT to be installed before 2027
0 0 0 30
DT at end of 2027
32 0 165 209
103
Up to 2031 New DT to be added due to augmentation before end of 2031
0 0 0 185
New DT to be installed before 2031
0 0 0 31
DT at end of 2031 12 0 0 425
Remarks:DTs of lower capacity(ie 400/500/630 KVA) will be augmented by
DTs of higher capacity ie 630/1000 KVA as per actual requirement and load
growth post 2022
104
9 NETWORK UPGRADATION & STRENGTHENING 9.1 Proposed Network Up-gradation / Strengthening Initiatives by
DHBVN Following attributes are proposed in DLF City Sub Division for
electrical distribution infrastructure Up-gradation/Strengthening:
• Identification of load centres and location at these load centres for
creation of 07 no new 66/11 KV S-stns. to address problemsof:
Right of way from existing Substations for laying of new
feeders
Long 11 KV feeders resulting in poor voltage regulation
High down-time of 11 KV feeders due to existence of multiple
feeders on common poles
• Switch over from overhead HT and LT system to underground system
based on feasibility, wherever possible, by laying cables through
trenchless boring or otherwise by simple digging, as the case may be.
Where the laying of underground cables will not be possible, an
overhead system on mono-poles will be erected.
• 100% redundancy level will be created at the distribution level (both
at 11 KV feeder level and Distribution transformer level) whereas N-1
level redundancy will be created at the transmission level and
substations
• Installation of Supervisory Control and Data Acquisition (SCADA)
system with scalability for entire project area of Gurgaon
• Implementation of Advanced Metering Infrastructure (AMI) and set up
of control centre scalable for entire project area of Gurgaon
• Ring Main Units (RMUs) will be installed on different sections to
ensure uninterrupted power supply
• Operation staff will be equipped with latest state-of-art maintenance
equipment to carry out inspections
105
• After laying of the new up-graded system with 100% redundancy,
complete system will be operated and maintained by DHBVN staff
9.1.1 Layout of Existing 11 KV Radial feeders
Electrical S/STN-1
Electrical S/STN-3
Electrical S/STN-2
106
9.1.2 Layout of proposed 11 KV Ring Main System
E/SSTN-1
E/SSTN-3
E/SSTN-2
107
LEGENDS
220/66 KV SUBSTATION
11 KV UNDERGROUND/OH CIRCUIT
PROPOSED 11 KV UG/OH CKT FOR 11 KV RING MAIN
LT FEEDER PILLAR FOR O/G SERVICE CONNECTION
LT CABLE FOR RING MAIN OF FEEDER PILLAR
4 WAY/3 WAY RING MAIN UNIT
11KV/0.433 KV DISTRIBUTION TRANSFORMER
E/SSTN
108
GIS Based 11 kV Network of existing Sector 27 feeder from Sector 28 S/stn
109
9.2 Proposed Network Up-gradation/Strengthening Initiatives by HVPN
Based on studies, Transmission system strengthening was evolved which
broadly includes following:
• Establishment of new 220 kV substation (GIS) to cater to requirement
of new demand centers
• 220 kV Multi circuit Transmission line (High capacity conductor)
(Overhead/Cables)
• Formation of 220 kV Transmission ring beneath planned 400 kV ring
• Augmentation of Transformation capacity on existing/under
construction/HVPN planned Substation at 220/66 kV & 220/33 kV
level
110
1. Existing EHV substations
Sr. No. Location Capacity (MVA)
400/220 kV
1. Daultabad 3x315 = 945
2. Secor-72 (POWERGRID substation)
2x315 =630
3. Panchgaon (POWERGRID substation)
2x500 = 1000
Total 2575
(B) 220/66 kV
1. Badshahpur 4x100 = 400
2. Sector 52A, Gurgaon 3x100= 300
3. IMT Manesar 2x100 = 200
4. Daultabad 4x100 = 400
5. Sector 56, Gurgaon 2x100 = 200
6. Sector 72, Gurgaon 2x100 = 200
7. BBMB, Delhi 60
Sub Total 1760
(C ) 220/33 kV
1. Sector 72, Gurgaon 1x100 = 100
Sub Total 100
Presently Gurgaon Transmission network faces challenges like inadequate
redundancy of 220kV lines as well as transformers (both Power
transformers as well as Distribution transformer). These 220kV
111
transmission lines and power transformer get critically loaded during
contingency conditions.
Table: Existing 66 KV Substation Network and Capacity
S. No. Location Capacity (MVA)
66/11 kV
1. Badshahpur 2x25/31.5 = 63
2. Sector 52A, Gurgaon 2x16/20 = 40
3. IMT Manesar 1x25/31.5 = 31.5
4. Daultabad 1x25/31.5 + 1x12.5/16 = 47.5
5. Sector 56, Gurgaon 1x12.5/16 + 2x25/31.5 = 79
6. Farukhnagar 2x12.5/16 = 32
7. Gurgaon (Mehrauli Road) 3x12.5/16 + 1x25/31.5 = 79.5
8. Maruti 2x25/31.5 = 63
9. Old Manesar 2x25/31.5 = 63
10. Patuadi 3x12.5/16 + 1x25/31.5 =79.5
11. Sector 9, Gurgaon 2x25/31.5 + 1x12.5/16 = 79
12. Sector 10A, Gurgaon 3x12.5/16 + 1x25/31.5 =79.5
13. Dundahera 3x25/31.5 = 94.5
14. Sector 23, Gurgaon 2x25/31.5 = 63
15. Sector 28, Gurgaon 2x25/31.5 + 1x12.5/16 + 4 MVA Rapid Metro = 79
16. Gurgaon (DLF Enclave Q Block) 3x12.5/16 + 1x25/31.5 =79.5
17. Sector 34, Gurgaon 2x12.5/16 + 2x16/20 = 72
18. IMT Manesar, Sector – 3 2x25/31.5 = 63
19. Bhore Kalan 2x25/31.5 = 63
20. Sector 44, Gurgaon 2x25/31.5 = 63
21. Harsaru, Gurgaon 1x25/31.5 + 1x12.5/16 = 47.5
112
S. No. Location Capacity (MVA)
22. Sector 38, Gurgaon 2x25/31.5 = 63
23. Sector 2, Gurgaon 3x25/31.5 = 94.5
24. Sector 2, IMT Manesar 2x12.5/16 = 32
25. Sector 4, IMT Manesar 2x25/31.5 = 63
26. Sector 15 II, Gurgaon 2x25/31.5 = 63
27. Sector 43, GGN (GIS) 2x25/31.5 = 63
28. Sector 51, GGN (GIS) 1x25/31.5 + 1x12.5/16 = 47.5
29. IMT Manesar, Sector 8 2x16/40 = 20
30. DLF Phase – V 3x16/20 = 60
31. Rico (Pvt.) 18
32. Sunbeam (Pvt.) 10
33. Munjal Kiriu (Pvt. Consumer) 16
34. Sector 47 (Unitech) 3x16/20 = 60
Total 1991 MVA
Future Transmission System
Considering peak demand requirement of 4800 MW by 2021-22, studies
have been carried out to assess requirement of transmission strengthening,
if any. For this, HVPN transmission future planning has also been taken into
considerations account and any further transmission requirement over
HVPN planned system has been examined. It is to mention that HVPN has
already planned a new 400/220kV substation at Farukh Nagar with LILO of
400 kV Dhanonda-Daulatabad D/c line. Likewise, 220kV Sector-57, Sector-
20, Sector-33 and Panchgaon substations are already under construction
and envisaged to be commissioned in this Financial Year along with their
interconnecting lines.
113
In the 35th standing committee meeting on power system planning in
Northern region in 03.11.14, establishment of new 400kV substations in
Gurgaon area as Inter State Transmission was agreed. Looking at the load
growth in Gurgaon area, a 400kV ring system connecting existing 400kV
substation with proposed future substations were agreed. Ring System is
proposed with interconnection of 400kV Dhanonda(HVPN) – Farukh
Nagar(HVPN)-Daultabad (HVPN)-Gurgaon(PG)- Sohna Road(ISTS)-
Manesar (PG)-Neemrana(PG) substations. The 400kV Sohna Road as well
as Kadarapur S/s in Gurgaon area are also agreed to be established as
part of Inter State Transmission through Tariff based Competitive Bidding
(TBCB). In above meeting, 400kV Prithla/Palwal S/s was also agreed to be
developed as ISTS with interconnection of Kadarpur and Aligarh
S/s.Proposed 400kV Transmission Ring around Gurgaon is shown at Fig 2-
5 below
Proposed 400 kV Transmission Ring around Gurgaon
Considering establishment of new 400/220kV substations at Farukh Nagar
(HVPN), Sohna Road (ISTS) &Kadarpur (ISTS), it is proposed that future
load may be served
114
From these load centers based EHV substations so as to relieve
loading of 400kV Daultabad and Gurgaon (PG)/Sec-72 Sub-
stations. Following transmission system is envisaged to come up
in near future at Intra/Inter-state level:
400/220kV substations (3630 MVA)
• Farukh Nagar (2x315 MVA) (HVPN)
• Sohna Road (2x500 MVA) (ISTS)
• Kadarpur (2x500 MVA) (ISTS)
Augmentation of 400/220kV transformation capacity by 2x500 MVA
at Sec-72
9.2.1 HVPN Proposal for Phase-1 of Part-1 ie for area under DLF City Subdivision
1. New plan has been envisaged at 11 KV level and accordingly the
DHBVN has required strengthening of 66 KV and 220 KV
transmission network. As per proposal submitted by SE/Smart City
Project, DHBVN Gurgaon DHBVN envisaged ultimate load of 531
MVA upto year 2031 (excluding load of Ambience Island, DLF Cyber
City, DLF Phase-V and Rapid Metro), 07 no. new 66/11 kV
substations are proposed to be constructed by HVPNL in place of 11
no. 33/11 kV substation proposed earlier. Requirement for creation of
following 66/11 kV HVPNL substations justifying the requirement
herein as under:
115
Sr. no.
Name of S/Stn. Area to be fed Load (MVA)
Total load
No. of feeders
Total feeders
1 66 kV S./Stn. MA
Road, Land opp.
MA-28A, MA
Road, DLF-III
Nathupur
village
8 49
MVA
2 12
U-Block 18 4
T-Block/V-Block
(DLF-III)
15 4
Up coming load
of DLF-III
8 2
2 66 kV S/S MG
Road MCG Land
Opp. Neelkanth
Hospital
Nathupur
village
7 64
MVA
2 16
Sikkanderpurvill
.
5 2
HT cons. On
MG Road NR
D/C Metro
Station
20 5
Upcoming load
NR D/C Metro
stn.
10 2
Siris Road DLF-
III
10 2
G/H Block +
Silver Oak
12 3
3 66 kV Arjun G/H Block + 12 52 3 13
116
Marg, Land at C
Block DHBVN
Complaint center
Silver Oak MVA
B, C, D & E
Block DLF-I
24 6
A & A (Extn.)-
Block DLF-I
16 4
4 66 kV S/S S/Lok,
C-Block, Land at
ESS C Block S-
Lok-1
S/Lok-1 C, D &
E Plotted area
28 57
MVA
7 14
HT Conns. On
gold souk road
and HUDA CC
to GC road
25 6
Sushant Lok-1,
B-Block
4 1
5 66 kV S/Stn. A-
Block, Land at
ESS C Block-S-
Lok-1
Sushant Lok-1,
B-Block
5 62 1 14
Sushant Lok-1
A- Block
8 2
DLF Phase IV 4 1
GHS of Sector-
28
17 6
HT conns. Of
MG road.
20 4
6 66 kV S/Stn., L-
Block (DLF-II)
50
MVA
12 12
117
7 66 kV S/Stn.
H.B.C.Chakkarpu
r Complaint
centre
45
MVA
11 11
The above chart predicts that area under Part –I of
Ist Phase under Smart Grid Project i.e. DLF Sub-
Division Area comprises of DLF Ph-I, II, III, M.G
Road, Partial area of Golf Course Road,
SushantLok-I, Sector-28, Sector-43 etc. The
ultimate demand of this area as of now is 231 MVA
which is being fed from various sub-stations of
HVPNL located inside or boundary of these areas
with most of the Power transformers and 11 KV
feeders fully loaded with no redundancy.
DISCOMs with their load projections have
anticipated that the present load of 231 MVA of DLF
Sub-Division area will increase to 306.6 MVA by the
end of 2017,370 MVA by 2020, & 531.30 MVA by
2031.
Thus, it becomes evident from above projection that
additional load of 75.60 MVA, 139 MVA, & 300.30
MVA is predicted by the end of 2017, 2020 & 2031
respectively.
Apart from above Bulk Consumers such as DLF,
Ambience and Rapid Metro are also anticipating
load of 140 MVA, 60 MVA & 20 MVA respectively
118
that cumulatively comes to 220 MVA by the end of
2031.
To cater this increased demand no 220 KV Sub-
stations exists in the area in question. Moreover
the Sub-stations from which this area is being
presently fed have become fully loaded.
2. That the requirement of load at different voltage levelestimated for the
year 2022 and 2031 is estimated as under:
3. It is submitted that all the new transmission assets likely to be created
shall have normal life span of about 25 years and would comply with
the relevant tariff orders life cycles stipulated in the depreciation
schedule of the assets. It is submitted that the strengthening of
transmission system would facilitate unregulated quality 24x7 power
free from outages. It is submitted that the creation and upgradation of
transmission assets would ease out extremely stressed and
overloaded transmission system having no redundancy. It is
submitted that the smart city project envisaged with the improved
transmission and distribution infrastructure would facilitate economic
growth. It is submitted that the total cost of the project of about 702
Crores proposed to be spent by HVPN in the high revenue return
areas would be incurred by HVPN at the behest of distribution utility
to facilitate strengthening of distribution system and by providing
reliability with capacity additions at various substations through up
gradation and augmentations of the capacities of the associated
substations and transmission lines. The amount spent by HVPN
would be recovered through ARR and reliability surcharge. It is
submitted that the improvement in the transmission system having
reliability of 24x7 would save massive quantity of fossil fuels thus
119
saving huge amount of foreign exchange besides converting
expenditure on fossil fuel.
It is submitted that two new 220 kV substations having transformation at
220/66 kV level would be created. It is submitted that a 220 kV substation is
being proposed at DLF Q Block with the proposed capacity of 3x160 MVA,
220/66 kV (GIS). Presently a 66 kV substation is constructed on the land
measuring – 6136 Sq meters (1.51 acres). Additional land of 5427 Sq
meters (1.34 acres) and 1568 Sq meters (0.39 acres) available at site
under the possession of Town & Country Planning was handed over by M/s
DLF.
Further a 220 kV substation is prosed at Sector-28 with a proposed
capacity of 3x160 MVA, 220/66 kV (GIS). At present the land available is
11164 sq meters (2.76 acres). Adjoining additional land measuring 4170 sq
meter (1.03 acres) pertaining to Municipal Corporation Gurgaon is available
in the vicinity of the substation and is currently being used as garbage
dump.
9.2.2 Connectivity of Proposed HVPN Sub-stations
120
9.2.3 Connectivity of proposed HVPN Sub-stations along with down the level connected lines
220 KV Lines
1. Creation of associated 220 KV transmission lines as under :-
i) Creation of 220 KV D/C line on M/C towers from
400 KV S/stn Kadarpur to proposed 220 KV Sub-
Station DLF Q- Block, Gurgaon with HTLS
conductor/underground cable having capacity
equivalent to twin Moose ACSR conductor i.e.
approximately 500 MVA (at 50 degree ambient
121
temperature).{ Tentative Length: 14.00 KM }
ii) Creation of 220 KV D/C line on M/C towers from
400 KV S/stn Kadarpur to 220 KV Sub-Station
Sec-52A, Gurgaon with HTLS conductor having
capacity equivalent to twin Moose ACSR
conductor i.e. approximately 500 MVA (at 50
degree ambient temperature).{ Tentative Length: 08.00 KM }
iii) Creation of 220 KV D/C line on M/C towers from
existing 220 KV Sub-Station Sector-52A,
Gurgaon to proposed 220 KV Sub-Station Sector-
28, Gurgaon with HTLS conductor having
capacity equivalent to twin Moose ACSR
conductor i.e. approximately 500 MVA (at 50
degree ambient temperature).{ Tentative Length: 5.00 KM }
Iv) Creation of 220 KV D/C line on M/C towers from proposed 220 KV
S/stn Sec-28 to proposed 220 KV Sub-Station DLF Q- Block, Gurgaon with
HTLS conductor/underground cable having capacity equivalent to twin
Moose ACSR conductor i.e. approximately 500 MVA (at 50 degree ambient
temperature).{ Tentative Length: 03.00 KM }
66 KV Lines
2. Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from proposed 220 KV Sub-station Sector-28 to 66 KV Sub-
station Sushant Lok C- Block, Gurgaon. ( Tentative Length – 3.80 Km )
3. Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from proposed 66 KV Sub-station Sushant Lok A- Block,
Gurgaon to proposed 66 KV Sub-station Sushant Lok C- Block, Gurgaon. (
122
Tentative Length – 2.30 Km )
4 Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from proposed 220 KV Sub-station Sector-52 to 66 KV Sub-
station Sushant Lok C- Block, Gurgaon. ( Tentative Length – 2.70 Km )
5 Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from proposed 220KV Sub-station sector 28 to proposed 66
KV Sub-station Arjun Marg, Gurgaon (Tentative Length – 1.60 Km).
6 Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from proposed 66KV Sub-station MG Road to proposed 66
KV Sub-station Arjun Marg, Gurgaon ( Tentative Length –5.10 Km ).
7 Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from proposed 220 KV Sub-station DLF Q Block to proposed
66 KV Sub-station M.G Road, Gurgaon. ( Tentative
Length – 0.71 Km )
8 Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from proposed 220 KV Sub-station DLF Q-Block to proposed
66 KV Sub-station L Block Gurgaon. ( Tentative
Length – 3.0 Km )
9 Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from Proposed 66 KV Sub-station S.Lok A-Block, Gurgaon to
proposed 66 KV Sub-station L-Block, Gurgaon. ( Tentative Length – 2.1
Km )
10 Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from 66 KV Sub-station Sector 44 to proposed 66 KV Sub-
station S.Lok A-Block Gurgaon. ( Tentative
Length – 2.50 Km )
12 Creation of 66 KV D/C line on underground Aluminum cable of size 1200
123
Sq.mm XLPE from proposed 220 KV Sub-station DLF Q Block to proposed
66 KV Sub-station MA Road Gurgaon. (
Tentative Length – 4.2 Km )
13 Creation of 66 KV D/C line on underground Aluminum cable of size 1200
Sq.mm XLPE from 220 KV Sub-station Sector 20 to proposed 66 KV Sub-
station MA Road Gurgaon ( Tentative Length – 4.50 Km )
4. That the Capacity addition will be made at both 220 kV and 66 kV
levels.. Further, need based conversion of 66/11 kV transformers to
66/33kV would be carried out and additional 66/33 kV transformers
would be added, wherever required. The following substations have
feasibility for upgradation to 220 kV level.
I. 66kV S/S Sector-28 - 2x25/31.5MVA.
II. 66 kV S/S DLF Q Block - 1x25/31.5MVA and
3x12.5/16 MVA.
5. It is submitted that 220 kV level new lines, conversion of existing 220
kV lines to High Capacity HTL, providing new underground cables
would be carried out.
9.2.4 Proposal for Transmission Infrastructure at Various Sub-stations
Sr. No
Description
1. Up-gradation of existing 66 kV AIS substation Q Block DLF
Gurgaon to 220/66/11 kV GIS substation Q Block DLF Gurgaon
completely laced with Substation Automation System fully
compliant for unmanned remote operation from remote SCADA
station with the installed capacity of 3x160 MVA, 220/66 KV,
124
3x25/31.5 MVA, 66/11 kV Power transformers along with two
250 KVA, 11/0.440 KV with Transformers and Capacitor banks
of appropriate rating and Voltage along with requisite bays and
breakers.
The Sub-station to have following Scope of Works:
220 KV Side(GIS):
a. Three Transformer bays for 3x160 MVA, 220/66 KV
transformers.
b. Four Line bays + Scope for extension of two line bays in future.
c. Bus Coupler Bay
66 kV Side(GIS):
a. Three Incomer 66 kV bays of 3x160 MVA, 220/66kV
transformers.
b. Three 25/31.5 MVA, 66/11 kV transformer bays.
c. Nine Line bays including two bays for private developers
seeking load at 66kV level.
d. Requisite Capacitor bays
e. Bus Coupler Bay
11 kV Side (GIS):
a. Two Incomers (GIS) breakers for each 25/31.5 MVA 66/11 kV
transformer.
b. One Bus Coupler (GIS) breaker against each transformer.
c. Eight outgoing feeders (400 amp.) (GIS) breakers against each
transformer.
d. Capacitor banks 11 kV (GIS) breakers required for appropriate
125
MVAr rating.
e. Required 11kV breakers for station transformers.
• All breakers essentially to have motorised earth
switch.
Note :
I. The existing 66 kV AIS substation Q-Block shall continue to
function till the commissioning of upgraded 220/66 kV GIS
substation.
II. The existing 66 kV AIS substation shall be dismantled only after
the commissioning of new 220/66 kV GIS substation.
III. An authenticated list of inventory of all usable materials require
reallocation after dismantlement would be provided by Smart
Grid team/ Officer Incharge for execution to the office of Chief
Engineer/MM for further allocation on approved augmentation
and additional works at various substations.
IV. All non- usable material will be got surveyed off from competent
authority and shall be returned to stores.
V. The Design wing would explore the possibility to utilize existing
25/31.5 MVA transformers, however if it is not feasible, the
transformers of 25/31.5 MVA rating which are required to be
provided/allocated on the proposed 66 KV new sub-stations
transformers proposed herein after for the approval.
VI. The Sub-station is required to be commissioned by January
2018 and to be listed in the Works list of FY 2016-17.
2. Up-gradation of existing 66 kV AIS substation sector 28
Gurgaon to 220/66/11 kV GIS substation Sector-28, Gurgaon
with the installed capacity of 3x160 MVA, 220/66 KV, 3x25/31.5
126
MVA, 66/11 kV Power transformers along with two 250 KVA,
11/0.440 KV Station Transformers completely laced with
Substation Automation System fully compliant for unmanned
remote operation from remote SCADA station
The Sub-station to have following Scope of Works:
220 KV Side(GIS):
a. Three Transformer bays for 3x160 MVA, 220/66 KV
transformers.
b. Four Line bays + Scope for extension of two line bays in future.
c. Bus Coupler Bay
66 kV Side(GIS):
a. Three Incomer 66 kV bays of 3x160 MVA, 220/66kV
transformers.
b. Three 25/31.5 MVA, 66/11 kV transformer bays.
c. Five Line bays + Requisite Capacitor bays + Scope for
extension of two line bays for future (having compatible
ampicity to 1200 sq mm, aluminium XLPE 66 kV underground
cable)
d. Bus Coupler Bay
11 kV Side (GIS):
a. Two Incomers (GIS)breakers for each 25/31.5 MVA 66/11 kV
Transformer
b. One Bus Coupler(GIS) breaker against each transformer
c. Eight outgoing feeders (400 amp.) (GIS) breakers against each
transformer
d. Capacitor banks 11 kV (GIS) breakers required for appropriate
127
MVAR rating.
e. Required 11kV breakers for station transformers.
• All breakers essentially to have motorised earth
switch.
Note :
i. The existing 66 kV AIS substation sector-28 shall continue to
function till the commissioning of upgraded 220/66 kV GIS
substation.
ii. The existing 66 kV AIS substation shall be dismantled with only
after the commissioning of new 220/66 kV GIS substation.
iii. An authenticated list of inventory and materials require
reallocation after dismantlement would be provided by Smart
Grid team to the office of Chief Engineer/MM for further
allocation on approved augmentation and additional works at
various substations.
iv. All non- usable material will be got surveyed off from competent
authority and shall be returned to stores.
v. The Design wing would explore the possibility to utilize existing
25/31.5 MVA transformers, however if it is not feasible, the
transformers of 25/31.5 MVA rating which are required to be
provided/allocated on the proposed 66 KV new sub-stations
transformers proposed herein after for the approval.
The Sub-station is required to be commissioned by January
2018 and to be listed in the Works list of FY 2016-17.
3. Creation of associated 220 KV transmission lines as under :-
i. Creation of 220 KV D/C line on M/C towers from 400 KV S/stn
Kadarpur to proposed 220 KV Sub-Station DLF Q- Block,
128
Gurgaon with HTLS conductor/underground cable having
capacity equivalent to twin Moose ACSR conductor i.e.
approximately 500 MVA (at 50 degree ambient temperature). {Tentative Length: 14.00 KM }
ii. Creation of 220 KV D/C line on M/C towers from 400 KV S/stn
Kadarpur to 220 KV Sub-Station Sec-52A, Gurgaon with HTLS
conductor having capacity equivalent to twin Moose ACSR
conductor i.e. approximately 500 MVA (at 50 degree ambient
temperature). { Tentative Length: 08.00 KM }
iii. Creation of 220 KV D/C line partially on M/C/D/C/Monopole
towers ( as per ROW & requirement) from existing 220 KV Sub-
Station Sector-52 A, Gurgaon to proposed 220 KV Sub-Station
Sector-28, Gurgaon with HTLS conductor having capacity
equivalent to twin Moose ACSR conductor i.e. approximately
500 MVA (at 50 degree ambient temperature). { Tentative Length: 5.00 KM }
iv. Creation of 220 KV D/C line on M/C towers from proposed 220
KV S/stn Sec-28 to proposed 220 KV Sub-Station DLF Q-
Block, Gurgaon with HTLS conductor/underground cable having
capacity equivalent to twin Moose ACSR conductor i.e.
approximately 500 MVA (at 50 degree ambient temperature).
{Tentative Length: 03.00 KM }
Note :
a. The Right of Way for creation of lines placed at Sr. No. i &
ii) & iii) above shall be facilitated partially by existing 220
KV D/C Sec -56 to Sector-52 line along with existing 66
KV D/C Sector-52 to Sector-28 line & partial up-gradation
of existing 220 KV Sec 72 –Sec 52 line on D/C towers to
129
M/C towers respectively
b. The Right of Way for line placed at Sr. No-iv ) above shall
also be partially facilitated by existing 66 KV S/C Sector
28 to Q- Block line.
The Transmission line is required to be commissioned by
January 2018 and to be listed in the Works list of FY 2017-18.
5. Allocation of Four 220kV line bay at 400kV S/stn Kadarpur to
feed below mentioned transmission line mentioned at Sr. No 3 i
)& ii) above i.e.
i. Creation of 220 KV D/C line on M/C towers from 400 KV S/stn
Kadarpur to proposed 220 KV Sub-Station DLF Q- Block,
Gurgaon with HTLS conductor/underground cable having
capacity equivalent to twin Moose ACSR conductor i.e.
approximately 500 MVA (at 50 degree ambient temperature). { Tentative Length: 14.00 KM }
ii. Creation of 220 KV D/C line on M/C towers from 400 KV S/stn
Kadarpur to 220 KV Sub-Station Sec-52A, Gurgaon with HTLS
conductor having capacity equivalent to twin Moose ACSR
conductor i.e. approximately 500 MVA (at 50 degree ambient
temperature). { Tentative Length: 08.00 KM }
6. Allocation of two no. 220 KV Line bays at 220 KV Sub-Station
Sector -52 Gurgaon for line placed at Sr. No 3-ii) above after
facilitation of ROW by existing 220 KV D/C Sec-52 to Sec-56
line for line specified above at Sr. No -3 i) & ii) above.
7. Creation of two no 220 KV line bays at existing 220 KV Sub-
Station Sector-52 A, Gurgaon on back to back/Hybrid
arrangement basis for the proposed line placed at Sr. No -3-iii)
above.
130
8. Creation of 66/11 kV (GIS) substation Sushant Lok, C- Block,
Gurgaon completely laced with Substation Automation System
fully compliant for unmanned remote operation from remote
SCADA station with the installed capacity of 3x25/31.5 MV A,
66/11 KV transformers along with two 250 KVA, 11/0.440
KVStation Transformers and Capacitor bank of appropriate
Voltage and rating.
The Sub-station to have following Scope of Works:
66kV side(GIS)
a) Three transformers bays for 3x25/31.5 MVA 66/11 kV
Transformer. Out of three one transformer spared transformer
from proposed 220 KV Sub-Station DLF Q-Block or Sec-28,
Gurgaon shall be used at this sub-station.
b) Six line bays(having compatible ampicity to 1200 sq mm,
aluminium XLPE 66 kV underground cable) + Scope for
extension of two line bays for future.
c) Bus Coupler bay
11 KV Side (GIS)
a) Two Incomers (GIS)breakers for each 25/31.5 MVA 66/11 kV
Transformer
b) One Bus Coupler(GIS) breaker against each transformer
c) Eight outgoing feeders (400 amp.) (GIS) breakers against each
transformer
d) Capacitor banks 11 kV(GIS) breakers required for appropriate
MVAR rating.
e) Required 11kV breakers for station transformers.
131
• All breakers to have motorised earth switch
The Sub-station is required to be listed in the Works list of FY
2016-17.
9 Creation of 66/11 kV (GIS) substation Arjun Marg, Gurgaon
completely laced with Substation Automation System fully
compliant for unmanned remote operation from remote SCADA
station with the installed capacity of 3x25/31.5 MVA, 66/11 KV
transformers along with two 250 KVA, 11/0.440 KV Station
Transformers and Capacitor bank of appropriate Voltage and
rating.
The Sub-station to have following Scope of Works
66kV side(GIS)
a) Three transformers bays for 3x25/31.5 MVA 66/11 kV
Transformer. Out of three one transformer spared transformer
from proposed 220 KV Sub-Station DLF Q-Block or Sec-28,
Gurgaon shall be used at this sub-station.
b) Four line bays (having compatible ampicity to 1200 sq mm,
aluminium XLPE 66 kV underground cable)
c) Bus Coupler bay
d) Scope for extension of Two line bays in future.
11 kV Side (GIS)
a) Two Incomers (GIS)breakers for each
b) One Bus Coupler(GIS) breaker against each transformer
c) Eight outgoing feeders (400 amp.) (GIS) breakers against each
transformer
d) Capacitor banks 11 kV(GIS) breakers required for appropriate
132
MVAR rating.
e) Required 11kV breakers for station transformers.
• All breakers to have motorised earth switch.
The Sub-station is required to be commissioned by October
2017 and to be listed in the Works list of FY 2016-17.
10 Creation of 66/11 kV (GIS) substation L- Block, Gurgaon
completely laced with Substation Automation System fully
compliant for unmanned remote operation from remote SCADA
station with the installed capacity of 3x25/31.5 MVA, 66/11 KV
transformers along with two 250 KVA, 11/0.440 KV Station
Transformers and Capacitor bank of appropriate Voltage and
rating.
The Sub-station to have following Scope of Works
66 kV Side (GIS)
a) Three transformers bays for 3x25/31.5 MVA 66/11 kV
Transformer. Out of three one transformer spared
transformer from proposed 220 KV Sub-Station DLF Q-Block
or Sec-28, Gurgaon shall be used at this sub-station.
b) Four line bays (having compatible ampicity to 1200 sq mm,
aluminium XLPE 66 kV underground cable).
c) Bus Coupler bay
d) Scope for extension of two line bays in future.
11 kV Side (GIS)
a) Two Incomers (GIS)breakers for each
b) One Bus Coupler(GIS) breaker against each transformer
c) Eight outgoing feeders (400 amp.) (GIS) breakers against each
133
transformer
d) Capacitor banks 11 kV (GIS) breakers required for appropriate
MVAR rating.
e) Required 11kV breakers for station transformers.
• All breakers to have motorised earth switch
The Sub-station is required to be commissioned by October
2017 and to be listed in the Works list of FY 2016-17.
11 Creation of 66/11 kV (GIS) substation M.G Road, Gurgaon
completely laced with Substation Automation System fully
compliant for unmanned remote operation from remote SCADA
station with the installed capacity of 3x25/31.5 MVA, 66/11 KV
transformers along with two 250 KVA, 11/0.440 KV Station
Transformers and Capacitor bank of appropriate Voltage and
rating.
The Sub-station to have following Scope of Works
66kV side(GIS)
a) Three transformers bays for 3x25/31.5 MVA 66/11 kV
Transformer. Out of three one transformer spared transformer
from proposed 220 KV Sub-Station DLF Q-Block or Sec-28,
Gurgaon shall be used at this sub-station.
b) Four line bays (having compatible ampicity to 1200 sq mm,
aluminium XLPE 66 kV underground cable).
c) Bus Coupler bay
d) Scope for extension of two line bays in future.
11 kV Side (GIS)
a) Two Incomers (GIS)breakers for each 25/31.5 MVA 66/11 kV
134
Transformer
b) One Bus Coupler(GIS) breaker against each transformer
c) Eight outgoing feeders (400 amp.) (GIS) breakers against each
transformer
d) Capacitor banks 11 kV (GIS) breakers required for appropriate
MVAR rating.
e) Required 11kV breakers for station transformers.
• All breakers to have motorised earth switch
The Sub-station is required to be commissioned by October
2017 and to be listed in the Works list of FY 2016-17.
12 Creation of 66/11 kV (GIS) substation Sushant Lok, A- Block,
Gurgaon completely laced with Substation Automation System
fully compliant for unmanned remote operation from remote
SCADA station with the installed capacity of 3x25/31.5 MVA,
66/11 KV transformers along with two 250 KVA, 11/0.440 KV
Station Transformers and Capacitor bank of appropriate
Voltage and rating.
The Sub-station to have following Scope of Works:
66kV side(GIS)
a) Three transformers bays for 3x25/31.5 MVA 66/11 kV
Transformer. Out of three one transformer spared transformer
from proposed 220 KV Sub-Station DLF Q-Block or Sec-28,
Gurgaon shall be used at this sub-station.
b) Six line bays(having compatible ampicity to 1200 sq mm,
aluminium XLPE 66 kV underground cable)
c) Bus Coupler bay
135
11 KV Side (GIS)
a) Two Incomers (GIS)breakers for each 25/31.5 MVA 66/11 kV
Transformer
b) One Bus Coupler(GIS) breaker against each transformer
c) Eight outgoing feeders (400 amp.) (GIS) breakers against each
transformer
d) Capacitor banks 11 kV (GIS) breakers required for appropriate
MVAR rating.
e) Required 11kV breakers for station transformers.
• All breakers to have motorised earth switch
The Sub-station is required to be commissioned by October
2017 and to be listed in the Works list of FY 2016-17.
13 Creation of 66/11 kV (GIS) substation M.A Road, Gurgaon
completely laced with Substation Automation System fully
compliant for unmanned remote operation from remote SCADA
station with the installed capacity of 3x25/31.5 MVA, 66/11 KV
transformers along with two 250 KVA, 11/0.440 Station
Transformers and Capacitor bank of appropriate Voltage and
rating.
The Sub-station to have following Scope of Works
66kV side(GIS)
a) Three transformers bays for 3x25/31.5 MVA 66/11 kV
Transformer
b) Four line bays (having compatible ampicity to 1200 sq mm,
aluminium XLPE 66 kV underground cable).
136
c) Bus Coupler bay
d) Scope for extension of two line bays in future.
11 KV Side (GIS)
a) Two Incomers (GIS)breakers for each 25/31.5 MVA 66/11 kV
Transformer
b) One Bus Coupler(GIS) breaker against each transformer
c) Eight outgoing feeders (400 amp.) (GIS) breakers against each
transformer
d) Capacitor banks 11 kV (GIS) breakers required for appropriate
MVAR rating.
e) Required 11kV breakers for station transformers.
• All breakers to have motorised earth switch
The Sub-station is required to be commissioned by October
2017 and to be listed in the Works list of FY 2016-17.
14 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 220 KV Sub-station
Sector-28 to 66 KV Sub-station Sushant Lok C- Block,
Gurgaon. ( Tentative Length – 3.80 Km )
15 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 66 KV Sub-station
Sushant Lok C- Block, Gurgaon to proposed 66 KV Sub-station
Sushant Lok A- Block, Gurgaon. ( Tentative Length – 2.30 Km )
16 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 220 KV Sub-station
Sector-52 to 66 KV Sub-station Sushant Lok C- Block,
Gurgaon. ( Tentative Length – 2.70 Km )
137
17 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 220KV Sub-station
sector 28 to proposed 66 KV Sub-station Arjun Marg, Gurgaon
(Tentative Length – 1.60 Km).
18 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 66KV Sub-station Arjun
Marg to proposed 66 KV Sub-station MG Road, Gurgaon (
Tentative Length –5.10 Km ).
19 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 220 KV Sub-station
DLF Q Block to proposed 66 KV Sub-station M.G Road,
Gurgaon. ( Tentative Length – 0.71 Km )
20 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 220 KV Sub-station
DLF Q-Block to proposed 66 KV Sub-station L Block Gurgaon.
( Tentative Length – 3.0 Km )
21 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from Proposed 66 KV Sub-station
S.Lok A-Block, Gurgaon to proposed 66 KV Sub-station L-
Block, Gurgaon. ( Tentative Length – 2.1 Km )
22 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 66 KV Sub-station
Sector 44 to proposed 66 KV Sub-station S.Lok A-Block
Gurgaon. ( Tentative Length – 2.5
Km )
23 Creation of two no. 66 KV line bays at 66 KV Sub-station
Sector-44 to feed the line placed at Sr. No-22 above i.e.
138
Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 66 KV Sub-station
Sector 44 to proposed 66 KV Sub-station S.Lok A-Block
Gurgaon. ( Tentative Length – 2.5
Km )
24 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from proposed 220 KV Sub-station
DLF Q Block to proposed 66 KV Sub-station MA Road
Gurgaon. ( Tentative Length – 4.5
Km )
25 Creation of 66 KV D/C line on underground Aluminum cable of
size 1200 Sq.mm XLPE from 220 KV Sub-station Sector 20 to
proposed 66 KV Sub-station MA Road Gurgaon ( Tentative
Length – 4.20 Km )
26 Creation of two no of 66kV GIS bays at 220kV S/stn GIS sector
20 to feed the connectivity mentioned at Sr. No 25 above.
27 Allocation of 66 KV line bays of 66 KV D/C Sector-52 to Sector-
28 line after dismantlement of same as per Sr. No -3 above to
feed 66kV D/C line through U/G underground Aluminum cable
of size 1200 Sq.mm XLPE mentioned at Sr. No. 16 above.
28 Replacement of existing11kV AIS VCBs with 11kV GIS Panels
for compatibility in relation to remote SCADA operations each at
66kV S/stn sector 43 and 66kV S/stn DLF Phase V Gurgaon.
29. All the works mentioned above are to be included in the works
list of HVPNL in FY 2016-17 and require approval of HERC.
139
10 COST ESTIMATES & BENEFITS Estimated cost of implementation of features of Smart Grid project is Rs.
1337 crores including transmission system for Phase 1. Cost of SCADA
implementation has been taken as one time cost and includes fixed cost for
setup of control room and other system applications. The total cost of
implementation of distribution network including features of Smart Grid is
Rs. 671 crores approximately. Detail is given below:
10.1 Estimated Cost of Project (Phase I)
Sr.No.
Description/ Major head of
items Unit Quantity
Unit Rate
Total Supply Cost
Total Supply Cost +15%
Erection Total (In Lacs)
In Lacs
DISTRIBUTION DHBVN
1 HT Cables (Various Sizes) KM 281.42 4642.12 5338.45 232.11 5570.55
2 LT UG Line (Various sizes) KM 1923.07 5433.16 6248.14 271.69 6519.83
3 LT Feeder Pillar No.s 7451 11485.49 13208.31 229.70 13438.02
4
RMU(Ring Main Units)
with FRTU & FPI
No.s 563 3753.98 4317.08 750.07 4392.16
5 Distribution
T/F(11KV/.433KV)
No.s 240 2162.13 2486.44 43.24 2529.69
6 Optical Fiber
and PLB-HDPE Pipe
KM 259 280.477 322.54 14.02 336.57
7 Street Light No.s 11000 4395.35
8 Civil work for foundation of DT/RMU/FP
No.s 8394 1189.96 1189.96
140
etc
9
Civil work for underground
laying of cable/optical
fiber
Mtr. 1043000 3563.50 3563.50
10 Fencing R/ Mtr 9711 322.79 371.21 32.27 403.49
11 RCC slabs and route markers No.s 905430 1883.00 2165.45 37.66 2203.11
12 PSS No.s 15 409.98 471.47 8.19 479.67
13 Cost of other
minor items/works
L/S 991.14 1139.81 128.1 1267.91
14 5 years O & M 4152.73
Sub-Total 50442.32
SCADA & OMS/ADMS
1
SCADA & OMS along
with civil work required for the
project
lot 1
10055
AMI(including DTMU’s)
1 Field
Equipment for AMI & PLM
lot 1
3409
2 IT System and Integration for AMI & PLM
lot 1
672
3 Field
equipment for PQM & DTMU
lot 1 756
4 Consumer
Education and Awareness
lot 1 10
10
Sub-Total 4847
Total DHBVN -A 65344.32
141
TRANSMISSION-HVPN
1 Substations & Lines 70182
TOTAL (HVPN) - B 70182
Total Consultancies Charges – C (2% of (A+B)) 2710.52
GRAND TOTAL (A+B+C) 138236.8
10.2 BENEFITS Smart Grid project is being done as an initiative to embed new technologies
in distribution system in small scale and successful implementation would
draw the way forward for large scale implementation. Therefore for such a
project finding economic viability and feasibility would be prejudice as
qualitative benefits are of paramount importance. Large scale
implementation in future may only prove economies of operation. The main
benefits of the project are as under :
• 24x7 power supply to all consumers.
• Make Gurgaon Diesel Generator Free.
• Reduce AT&C Losses.
• Improve reliability of power by reduction of outage rate and duration.
• Ensure quality power supply by reduction of harmonics
10.3 COST BENFIT ANALYSIS
10.3.1 Benefit of Implementation of AMI Gurgaon is expected to achieve following benefit as the outcome of
distribution strengthening and smart grid.
10.3.1.1 Reduction of AT&C losses
• AT&C losses of DLF City is around 11.91 %
• Total Energy input to DLF City is 742 MU in year 2014-15 time
duration.
142
• Total billed energy is 681 MU in year 2014-15 time duration billing
efficiency (91.76%).
• After smart grid intervention billing efficiency expected to increase up
to 95% and total billed energy will be 705 MU
• Additional energy billed is 24 MU.
• Revenue saving out of above saving of 24 MU shall be Rs 14.784 Cr.
when the average sale of energy is Rs. 6.16 /unit (ROR on
Assessment and Unit Billed)
10.3.1.2 Reduction in average cost of billing
At present Average cost of billing is Rs. 300/per year/consumer by aiming
70% reduction in the billing cost, cost of billing shall be reduced by Rs. 210/
per year/per consumer hence total saving for 29145 Nos. of consumers
(considering growth of 8 %) is Rs. 0.61 Cr.
10.3.2 Peak Load Management Reduction in peak demand
• The peak demand is 250 MVA. Power factor is 0.9. Average Peak
load time is one hour per day on average basis.
• During the peak time consumption is 225,000 Units.
• Reducing the peak demand to 225 MVA, the peak consumption will
reduced to 202,500 Units, saving 22,500 U
• For 22,500 Units, differential UI charges for peak and non-peak is Rs.
5 / unit hence saving in revenue by shifting peak demand is Rs. 4.10
Cr (365 days for one hour).
Benefit from Peak Load Management would require regulatory
provisions such as Time of Day (TOD) tariff.
10.3.3 Outage Management System Reduction in outages:
143
Above mentioned OMS/SCADA scheme shall be installed in 11kV/33kV
network of Gurgaon. It is estimated that present tripping rate of approx.
1205 tripping per year may be reduced to Nil tripping per year. Table below
shows the benefits due to reduction in lines trippings after implementation
of OMS.
Table : End scenario of line tripping after OMS
Description Present
status
After Smart Grid
and System
strengthening
Total no of line Outages in the year for 88
Nos. of feeders 1205 0
Average time taken for restoration (Hrs) 2.4 0
Average cost of restoration per outage (Rs
lac) 0.1
Total Cost of restoration (Crore) 1.205 0
Benefits due to reduction in restoration
cost (Rs. Cr) 1.205
Average Energy Loss per outage (MU)
(2000 unit/hr) 0.0048 0
Total energy loss ( MU) 5.784 0
Increase in Energy Sales (MU) - 5.784
Benefits due to Higher energy sales
assuming profit of Rs. 1.74 per unit (Rs.Cr) - 1.006
Benefits by reducing number of outages and outage durations would be
following:
144
• With the proposed reduction in line outages from 1205 to Nil, the total
saving in restoration cost would be Rs.1.205 Cr/year
• Due to higher energy sales because of reduced failures/ increase
availability, the increase in gross profit for the utility would be Rs.
1.006 Cr/ year
DTMUs
For monitoring oil level, temperature & loading of distribution transformers,
monitoring units shall be installed which shall be helpful in reducing number
of outages, outage duration & restoration time. Also system strengthening
shall also reduce overloading and thus failure of equipment, reducing
outage time. By increasing reliability and reducing outage of DTs, there will
be reduction in No. of transformers under repair also, which will increase
the availability of transformer in store as well. Presently, failure rate of
transformers is at 18.61%, which means 86 distribution transformers have
failed against total strength of 462 nos. in FY 2014-15. By virtue of
transformer monitoring units this failure rate may be brought to 1% level.
Table below depicts benefits after reduction of distribution transformer
failures due to OMS implementation.
Table : End scenario of DT Failures after OMS
Description Before System
Strengthening
After OMS
Implementation
Total No. of DTs 462 462
Percentage of DT failure(2014-15) 18.61% 1%
Approx. no. of failures per year 86 5
Total time taken for restoration per 24 8
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outage( Hr)
Average cost of restoration per outage
(Rs. In Lac) 0.516 0.516
Cost of Restoration (Rs. Lac) 44.376 2.58
Benefit due to reduction in restoration
cost (Rs. Cr) 0.42
Average Energy loss per outage (MU)
(100unit/hr) 0.0024 0.0008
Total energy loss(MU) 0.2064 0.004
Increase in Energy sales (MU) 0.202
Benefits due to higher energy sales
assuming profit of Rs 1.74 per unit
(Rs. Cr) 0.035
Benefits by reduction in number of outages & outage time of distribution
transformers shall be as under:
• With the proposed reduction in DT outages the total saving in
restoration cost would be Rs. 0.42 cr /year
• Higher energy sold through the reduced failures/ increase availability
the increase in gross profit for the utility would be Rs 0.035 Cr/ year.
Thus the total benefit to the utility due to outage management system
(benefits from improved scenarios of line trippings & DT failures) would be
Rs.2.666 Cr per Year. Outage Management System benefits can be
achieved subject to deployment of mobile and well equipped maintenance
crew. Also by increasing reliability in supply, a lot of value comes to society
by means of uninterrupted facilities in public services & social causes
whose cost cannot be written in black & white.
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10.4 Summary of Benefits Expected benefits from above mentioned smart grid initiatives are
summarized in table below:
S.No. Initiative Benefits (in Rs.
Cr. Per year)
1 Advanced Metering Infrastructure (AMI) 15.4
2 Peak Load Management(PLM) 4.1
3 Outage Management System(OMS) 2.6
Total 22.1
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11 FINANCING STRATEGY Plan for development of Smart Grid leading to Smart City Gurgaon involves
Strengthening / modernization of Power Transmission & Distribution
infrastructure to enable 24x7 Power supply as well as making the city DG
sets free. Total estimated cost of above schemes is Rs. 1382 crores and it
is to be implemented progressively by 2017. Broad breakup of cost
estimate is as under:
1. Transmission Rs. 702 crores ·
2. Distribution Rs. 653 crores
3. Project Management & Consultancies Rs. 27 crores
Funding Mechanism
For funding of the Distribution & Smart Grid, the year wise funding
requirement of DHBVN and HVPN is as shown in Table below:
Year DHBVN
Investment (Rs.
Crore)
HVPNL
Investment (Rs.
Crore)
Total
1st 200 Year 214 414
2nd 466 Year 502 968
Total 666 716 1382
As far as arrangement of funds is concerned, 25% of the project cost
would be arranged by way of equity / grant from the MoP (GoI). 75 %
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of Project cost would be arranged as loan from financial institutions.
Following shall be the modes of arrangement of funds:
Arrangement of Funds
1st 2 Year (2016-17)
nd Total (in crores)
Year (2017-18)
Grant from MoP (GoI)
103.65 241.85 345.5
Loan from PFC 310.95 725.55 1036.5 TOTAL 414.6 967.4 1382
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12 STRATEGY FOR IMPLEMENTATION
Considering the prevailing power supply scenario in DLF City Sub Division
in Gurgaon, it is proposed that Smart Grid technologies may be
implemented for garnering benefits not only from financial gains but also for
better consumer relationship, their engagement in energy management
process, green energy benefits and operational excellence through
increased efficiency, better visualization for fast decision making, optimized
work flow, reduced operational cost etc. The Work will be awarded on
“Concept to Commissioning” basis on per unit rate of each activity.
Following activities are supposed to be part of project which would take
about 24 months in implementing the project:
Formation of a specialized key team for execution of project.
Creation of office infrastructure.
Deciding a Special committee with financial powers for the smart city
project only.
Explore who are the other power utilities in India or Abroad who have
the expertise for making the distribution system underground and who
can advise us during initial stages of planning, tendering, evaluation
and award of contracts and then during the execution.
Load requirement and load growth projection upto 2031
Engagement of Consultant/Advisor.
Preparation of brief note for getting all the necessary administrative
approvals including the expenditure require to make to complete the
project and the possible means to fund the project of the estimated in
the shape of equity / grant by the government.
Field Survey.
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Planning.
Design.
Preparation of detailed BOQ to execute the project.
Preparation of detailed project report (DPR).
Finalization of unit rates for floating of NIT.
Finalization of technical specification of all the items required for
completion of project.
Floating of NIT.
Tendering/Evaluation.
Work award/allotment. The Work will be awarded on “Concept to
Commissioning” basis on per unit rate of each activity
Execution
Periodical review of Project
After award, it is proposed to complete Smart Grid implementation in 18
months. For implementation of proposed initiatives following steps need
to be taken-
• Timely implementation of the RAPDRP / other schemes already in
progress.
• Development of Smart Grid with all the proposed attributes.
• Establishment of Control Centre for smart grid application integrated
with other IT system.
• Regulatory and policy advocacy for time of use tariff, demand side
management, as part of smart grid development.
• Support/ coordination of district administration as well as other
departments like HUDA, MCG, DMRC, IGL, BSNL, NHAI and Forest
etc. for resolving the ROW issues and for proving the land required in
execution of project.
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13 RECOVERY THROUGH RELIABILITY SURCHARGE
Reliability Surcharge
Considering that this scheme will improve reliability through 24x7 power
supply as well as making Gurgaon city DG sets free, it is proposed that a
reliability charge may be levied in the tariff for all the categories of
consumers. The reliability charge would be used to service debt, O&M and
provide return on equity for the investment. Proposed reliability charge will
be uniformly levied @ Rs. 0.50 on domestic category consumers including
Bulk Supply Domestic and @ Rs. 0.60 per unit of consumption on all other
categories of consumers. However, the expected return against levy of this
reliability surcharge has been estimated @ Rs. 0.55 on all categories, as
the consumption of domestic category including Bulk Supply Domestic
consumers and other categories consumers are equal in DLF Sub-Division.
The estimated calculationis placed at Annexure – B.
The net benefits in the year 2018 after levying of Reliability Charge would
thus be:
S.No. Initiative Benefits
(in Rs. Cr)
1 Advanced Metering Infrastructure (AMI) 15.4
2 Peak Load Management(PLM) 4.1
3 Outage Management System(OMS) 2.6
4 Levy of Reliability Charge 60
Total 82.1
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The net benefits which will accrue during the year 2031 have been
assessed at 2031:
Sr. no.
Initiative Benefits (in Rs. Cr. Per year)
1 Advanced Metering Infrastructure (AMI) 49.14
2 Peak Load Management(PLM) 13.08
3 Outage Management System (OMS) 8.30
4 Recovery by levying Reliability Charge 184
Total 254.52
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14 CONCLUSION In the times to come, everything and every action of us have to be
consumers’ oriented and driven by their expectations and aspirations.
Electricity being the most sought after commodity and having become part
of our lives, it puts a lot of pressure on the electricity transmission and
distribution companies to plan the up-gradation and augmentation of the
existing system. Also, we need to think out of box to find solutions to the
electricity problems and to design the network architecture in a manner that
consumers not only get adequate voltage but also an uninterrupted supply.
Apart from the usual problems which the consumers face, another problem
which the consumers and utility people are facing together is the
congestion and problems of right-of-ways. Smart Grid is the solution to all
these problems. Choosing Gurgaon for developing Smart Grid is the most
appropriate approach which would not only prove to be a role model for
others to follow but also will prove to be preferred destination for
international companies and the people from all across the country.
We hope we shall be able to plan better, execute better and in conformity
with the latest in standards internationally taking in to consideration the
latest in technology available as on date.
