6 Session 3B Transmission Ravinder

8/8/2019 6 Session 3B Transmission Ravinder

1/17

PRESENTATION ON

TRANSMISSION SYSTEM REQUIREMENT

FOR THE 12TH PLAN ( 20012-17)


2/17

TRANSMISSION CORRIDORS PLANNED

1. SOUTHERN REGION2. WESTERN REGION

3. EASTERN REGION

4. NORTHERN REGION

i. Uttranchal

ii. Rabi Basin

iii. Satluj Basin

iv. Beas Basin5. SIKKIM
http://../Local%20Settings/Temp/notes6030C8/SR.pdfhttp://../Local%20Settings/Temp/notes6030C8/WR.pdfhttp://../Local%20Settings/Temp/notes6030C8/EASTERN%20REGION.pdfhttp://../Local%20Settings/Temp/notes6030C8/Uttaranchal.pdfhttp://../Local%20Settings/Temp/notes6030C8/RABI%20BASIN.pdfhttp://../Local%20Settings/Temp/notes6030C8/satluj.pdfhttp://../Local%20Settings/Temp/notes6030C8/BEAS%20BASIN.pdfhttp://../Local%20Settings/Temp/notes6030C8/sikkim.pdfhttp://../Local%20Settings/Temp/sikkim-V.pdfhttp://../Local%20Settings/Temp/sikkim-V.pdfhttp://../Local%20Settings/Temp/notes6030C8/sikkim.pdfhttp://../Local%20Settings/Temp/notes6030C8/BEAS%20BASIN.pdfhttp://../Local%20Settings/Temp/notes6030C8/satluj.pdfhttp://../Local%20Settings/Temp/notes6030C8/RABI%20BASIN.pdfhttp://../Local%20Settings/Temp/notes6030C8/Uttaranchal.pdfhttp://../Local%20Settings/Temp/notes6030C8/EASTERN%20REGION.pdfhttp://../Local%20Settings/Temp/notes6030C8/WR.pdfhttp://../Local%20Settings/Temp/notes6030C8/SR.pdf


3/17

Expected Transmission Requirement 2012-17

Expected Transmission Requirement All India

+/- 800 kV HVDC Bipole Projects, 6000 MW 2 to 3

+/- 600 kV HVDC Bipole Projects, 4000 MW 1

HVDC Bipole +/- 800 kV ckm 4000

HVDC Bipole +/- 600 kV ckm 1000

765/400 kV substation nos. 40 to 50

765 kV Transmission Lines ckm 25,000 to 30,000

765/400 kV MVA 1,10,000

400 kV Transmission Line ckm ( 40% quad, 60% TM) 50,000400/220 kV , 400/132 kV (MVA) 80,000

220 kV Transmission Line ckm 40,000

220/132, 220/110 95,000


4/17

Existing Transmission Lines and expansion

during 2012-17 (in ckm)

Transmissionlines

Existing(ckm) by 10th

plan

Additions11th plan

Total byMarch2012

Estimatedadditionsin12th plan

765 kV 2184 5428 7612 25,000 to30,000

HVDC 500 kV 5872 1606 7478

HVDC800/600 kV

0 3600 3600 5000

400 kV 75722 49278 12500050,000

220 kV 114629 35371 150000 40,000

Total ckm 198569 95283 293852 155,000 to180,000


5/17

Existing HVDC/Substation capacity and expansion

during 2012-17 (MVA/MW)

Substation ExistingMVA/MW by 10th

plan

Additions 11th

plan Total byMarch 2012 Estimatedadditions in12th

plan

HVDC BTB 3000 500 3500 0

HVDC

Bipole+Monopole

5200 5500 10700 16,000 to 22,000

Total HVDC terminalcapacity

8200 6000 14200 16,000 to 22,000

765 kV 0 53000 53000 1,10,000

400 kV 92942 52058 145000 80,000

230/220 kV 156497 73503 230000 95,000

Total 249439 178561 428000 295,000


6/17

Details of Inter-Regional Capacity Existingand Planned for 11th & 12th Plan

System By 10th

plan Additions11th plan By 11th

Plan Additions in12th Plan By 12th

Plan

ER-SR 3130 500 3630 4200 7830

ER-NR 3430 8700 12130 5900 18030

ER-WR 1790 4700 6490 10500 16990ER-NER 1260 1600 2860 0 2860

NR-WR 2120 2100 4220 10200 14420

WR-SR 1720 1000 2720 6300 9020

NER/ER-NR/WR

0 6000 6000 0 6000

132 /110 kV 600 0 600 0 600

TOTAL 14050 24600 38650 37100 75750


7/17

EXPECTED REQUIREMENT OF INSULATORS FORTRANSMISSION LINES 2012-17

Transmission line Insulator Discs (lakhs)

+/- 800 kV HVDC 48

765 kV 260

400 kV 300

220 kV 100


8/17

Expected Requirement of 765 kV Equipment and Material

Quantity

765 kV 500 MVA 1phase Transformer (nos.) 210

765 kV 333 MVA 1 phase Transformer (nos.) 70

80 MVAr 1 phase Reactors (nos) 480

765 kV bays (nos.) 280

765 kV CB (sets) 420

765 kV Current Transformers (sets) 560

765 kV CVTs (sets) 240765 kV Isolators (sets) 1100

765 kV LAs (sets) 280


9/17

Expected Requirement of 400 kV Equipment and Material

Quantity



50 MVAr 3 phase Reactors (nos) 440

400 kV bays (nos.) 660

400 kV CB (sets) 1000

400 kV Current Transformers (sets) 1300

400 kV CVTs (sets) 880400 kV Isolators (sets) 2600

400 kV LAs (sets) 660


10/17

Expected Requirement of 220 kV S/S Equipment

(Number)

Quantity220 kV 160 MVA 3 phase Transformer (nos.) 600

220 kV bays (nos.) 2400

220 kV Circuit Breakers (sets) 2400220 kV Current Transformers (sets) 2400

220 kV CVTs (sets) 3100

220 kV Isolators (sets) 9600

220 kV LAs(sets) 2400


11/17

Acquisition of Land and ROW Issues

ROW and acquisition of land are major hurdles in

development of transmission system. The problem is more

acute in the urban areas.

Problem of land acquisition can be mitigated by going for GISsubstations. Since Indian market is price sensitive, if GIS

manufacturers bring down prices further there is great scope

for GIS switchgear in the Indian transmission and sub-

transmission market. Similarly there is considerable scope formarketing underground EHV cables at competitive prices.


12/17

Acquisition of Land and ROW Issues

ROW issue to be mitigated through increasing Density ofTransmission through

UHV AC/DC Lines

FACTS High temperature endurance conductor

Multi-circuit lines

High surge Impedance Loading (HSIL) lines.


13/17

Compression of Execution Time

Reduction of Time of Execution

through GIS, GPS based line

route survey

Standardization of Designs


14/17

Standardization of Tower Designs Testing of Towers is a time consuming process taking 6-12

months

Delay have been observed in some of the projects where designswere in contractorss scope due to delay in testing of towers

Design & testing activity can be taken up by utility in advance orparallely to project approval activities

Design may be standardized for different wind zones / differentvoltages so that repeated activities can be avoided

Tested design to be given to the contractors after placement ofaward. Though quantities shall be on tonnage basis to avoid non-sequential supply provisions for payment on completed tower

basis should be kept.


15/17

Standardization of Designs

Designs & Drawing may also be standardized to the extent

possible for the following:

Insulator , Hardware fittings, accessories for Transmission Line

Substation structures

Substation equipments like CB, CT, CVT, LA, Insulators etc.

Control room building, other buildings, colony

In order to reduce problem of land acquisition and related R&R

efforts should be made to reduce substation land requirement by

compact layouts, compact switchgear & GIS substation.


16/17

Online Testing Facility for Transformers

All high-capacity EHV transformers installed in India are

presently being sent to KEMA, Netherlands-based electrical

equipment testing organisation, before being commissioned. This

leads to an average delay of 5-9 months in the commissioning

schedule

Under initiative of MoP JV of four Public Sector Undertakings

(PSUs)- NTPC,NHPC,DVC& PGCIL has been formed to

establish a domestic on line testing facility to perform short circuit

test on EHV Transformer upto 400 kV.

The testing facility is expected to come up in two years time


17/17

6 Session 3B Transmission Ravinder

Documents

Transcript of 6 Session 3B Transmission Ravinder