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OPS/ 007 / 003 - Operational guidance and training requirements associated with network trials using the Grand Unified Scheme (GUS)

1. Purpose

As part of the Customer-Led Network Revolution (CLNR) project, Northern Powergrid will install the Siemens GUS computer system at Manor House. This document provides operational guidance and specifies the training requirements for Control Engineers and CLNR Support Teams to monitor CLNR remote outstation substations and accept alarms from the NMS system.

Historically our electrical network has been designed to assume that the voltage will degrade the further down the system you go. Due to the increase of embedded generation that is no longer always the case. The number of PV systems being connected has caused a number of voltage complaints and caused primary set points to be lowered to accommodate the higher voltages seen by customers when the PV, or other embedded generation, generates at a time of low load. The aim of the project is to connect a number of new and enhanced devices on the Northern Powergrid electrical system and evaluate the benefits from controlling them both locally and remotely.

The GUS system interrogates and controls Enhanced Automatic Voltage Control (EAVC) enabled HV and LV equipment and monitoring equipment at locations throughout the Northern Powergrid network. The aim of this procedure is to provide sufficient information and confidence in the way that GUS works so as to allow it to be commissioned and then to permit more detailed and extensive network trials to be performed under the direction of the CLNR Project team and Newcastle University.

For the purposes of this trial, we will create artificial constraints, rather than genuine breaches of statutory voltage limits or genuine thermal overload.

The trials will study the behaviour and reaction of the electrical network when EAVC-enabled equipment is deployed in a controlled environment in a number of planned scenarios. These scenarios will cover: • EHV, HV and LV networks • Rural and urban networks • Photovoltaic (PV) clusters on LV networks • Heat Pump clusters on LV networks.

The trials are designed to rollout in phases so that learning and confidence can be built incrementally whilst maintaining the electrical network in a safe operational manner and within predefined control limits. The trials will also investigate the use of new and enhanced network equipment:

• Primary substation EHV voltage control tap change transformers • HV regulators • HV capacitor banks • Secondary substation On Load Tap Changer (OLTC) transformers • Battery Electrical Energy Storage (BEES) • LV voltage Regulators • Real Time Thermal Rating (RTTR) monitoring of transformers, overhead EHV and HV cables and underground HV

cables

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The trials will also study the use of the Siemens GUS control system. This will monitor the electricity distribution network and firstly offer efficiency recommendations in open loop that is without intervention control of the electricity network in a controlled environment. Then GUS will include closed loop autonomous control with computer recommended interventions to optimise the electricity network.

The results of these trials will provide information to understand how various technologies and techniques can address network issues such as HV and LV system headroom capacity (see definitions), network flexibility and power flow. This understanding will enable us to recommend guidance rules for improving the efficiency of the electrical distribution network and the benefits that these technologies and techniques can bring to customers. The conclusions and recommendations of the findings will be published in academic papers and to the Electricity Industry and shared within the company.

This document supersedes the following documents, all copies of which should be destroyed.

Ref Version Date Title

N/A N/A N/A N/A

2. Scope

This document applies to the Siemens GUS control system, for the duration of the CLNR programme, on the following Northern Powergrid network systems:

Denwick 20kV network, excluding control of Windylaw Capacitor Sw, including control of the 66/20kV transformers at Denwick substation;

Rise Carr 6kV network, including control of the 33/6kV transformers at Rise Carr substation;

Maltby (Photovoltaic Cell) Mortimer Road 44548 and Tickhill Road 400V networks, including control of the 11000/400V transformer at Mortimer Road and at Elgar Drive on the LV network;

Sidgate Lane (Heat Pump Cell) 400V network;

Manor House GUS central computer and control centre;

Newcastle University, data warehouse;

2.1 GUS Trial Methodology GUS is an active control system from Siemens comprising a Power CC Central control system and Remote Distribution Controllers (RDCs). The Power CC Central unit is a computer system based in the Manor House Control room, with web based views available at other locations. The RDCs are capable of running their own algorithms to control certain aspects of the End Network Devices (ENDs) that they are connected to.

PowerCC uses a dynamic network model, state estimator (see 2.2 CLNR components) and monitoring to get a view of the electrical system and to detail a list of tolerance violations. It has a detailed set of algorithms that operate in conjunction with a Volt Var controller to offer control recommendations to resolve these violations. Its primary function is to optimise network operation with no violations. These include voltage and thermal limits. Other options are also available to optimise for losses and/ or cost.

The RDC is located at a substation equipped with the new CLNR control technology. It has inputs and outputs (I/Os) from the END and other monitoring devices on the site. The commands sent consist of a change in set point or a change in the mode of operation of the device. The RDC will send the position of devices and load information back to PowerCC. If communication to PowerCC it lost due to a telecommunications fault or if told to work in RDC mode, it can also use its own algorithms to determine how to control the devices by returning to default network settings, working in local isolation from the central control.

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GUS has been designed not to control devices directly, but to give them set point targets. In the case of the EAVC no tap up or tap down commands are given, but just a change of set point. For electrical energy storage, a real power (P) and reactive power (Q) set point is given, keeping the system equipment in its normal operating mode as much as possible. A typical trial scheme is shown in Fig1 as an example.

Fig 1 Typical CLNR Project Scheme Connections to the HV and LV Network at Rise Carr

Figure 1 above is an illustration of how the Battery Electrical Energy Storage system is connected the Rise Carr primary

substation network.

2.2 CLNR Components The following is a summary of the equipment and techniques that will be used during the CLNR trials.

Monitoring – Monitoring devices have been connected to the HV and LV networks to bring back real time data. It is taking a sample every minute. This data is currently being collected on an ihost server. When the control system is in place, some of this data will be forwarded to the new GUS system

Darlington Melrose LV Distributor (EES at Harrowgate Hill SS)

High Northgate SS LV Bus bar

Rise Carr Primary SS

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GUS – An active control system which will monitor the whole system utilising a network model which uses a State Estimator and external monitoring to optimise the system under its control. It consists of a PowerCC computer, which is fed information from Remote Distribution Controllers (RDCs)

EAVC – Enhanced Automatic Voltage Control. Existing AVC devices have been supplemented with SuperTapp N+ relays which are able to receive a new voltage set point from a remote device. New AVC devices include HV on load tap changer controlled by a tapconn 230 unit and a Powerstar LV regulator to allow voltage control further down the system

BEES – Battery Electrical Energy Storage. Includes one 5MWh battery with 4 quadrant inverter capable of supplying 2.5MVA for 2 hours. Two 200kWh batteries with 4 quadrant inverter capable of supplying 100kW for 2 hours and three 100kWh batteries with 4 quadrant inverter capable of supplying 50kW for 2 hours.

RTTR – Real Time Thermal Rating. CTs and associated weather stations connected on both HV and EHV OH feeders. Temperature gauges are used to calculate transformer thermal ratings. A modified CRATER tool is used to calculate UG thermal ratings capacity. The GUS calculations will advise the potential headroom capacity gained over static performance characteristics of conductors and electrical plant.

DSR – Demand Side Response. Getting customers, both domestic and industrial to agree to drop electrical demand if requested or increase generation. This will be done by automatically generating a signal or Short Message Service text (SMS) message to customers.

State Estimator – Is an intelligent control system. The GUS computer offers rule based recommendations from a detailed software emulation of the electrical network components transformers, switches and cables. The computer monitors real time inputs such as voltage, current, temperature and reactance for violations outside of predefined limits. In open loop the computer will offer recommendations such as alarms that can be responded to manually. In closed loop when violations are acknowledged the computer will make automatic interventions on the electrical network. Using the CLNR project as an example of interventions a tap change using the secondary OLTC to change voltage or switch a battery system on to discharge energy onto the electrical network.

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Fig 2 Siemens Schematic of the CLNR Project Connections to the Northern Powergrid HV and LV Network

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3. Procedure

3.1 CLNR Trial GUS modes of operation Modes of Operation refers to the different ways the RDCs and associated ENDs can be controlled, and hence its operation in each of these scenarios.

3.1.1 End Network Device END mode Each device will be capable of operation in its END mode when not connected to the central control system but will operate autonomously. For the AVC devices this will be running on a default set point. The set point that it would be commissioned with if there was nothing else to control it i.e. normal operation as it is now.

3.1.2 Remote Device Controller RDC mode Every location with a new device has an RDC, and every device at that location is connected to this RDC. The RDC will pass information between the END and PowerCC Central unit at the control centre. The RDC gathers information from the END (or ENDs) and also from local substation monitoring, so it will have a larger view of the network than the END on its own. The RDC will receive commands from PowerCC, check that they are legitimate and don’t exceed any of the voltage or load limits within the RDC, and pass them to the END. For some trials the ENDs will be left in the RDC mode to test the effects of controlling the network in isolation from GUS and in normal operation as if communications are lost and it will automatically take charge of the END, controlling it using its own programme, using its own algorithms.

3.1.3 Central mode

Each RDC reports back to the main controller all END information and on site monitoring. For some devices, i.e. the batteries it will inform Power CC Central what charge or discharge is available. Power CC uses all the information at its disposal to work out the optimum operating parameter to run the system. The design of the Power CC will allow it to manage and alter set points to optimise the running conditions of the section of distribution network. Signals can be sent from Power CC to each RDC to select the mode each should be running. This feature will be utilised during the trials to investigate how the system responds with differing amounts of information and controls.

3.1.4 Disable mode / safe mode If the devices are not required for specific trials, or if the network responds in an unexpected manner, there is a disable/safe mode. This will be available to operate from NMS so the control engineers can remove the effects of the END if this is required. The Control engineer will not be able to return the END to its original mode from NMS. This will only be available from the PowerCC unit. Safe mode is different for different devices. The primary AVC will be sent to its default set point and will therefore run as a normal AVC. The HV OLTC will be set to manual which will freeze the taps. Staff will be required to attend site if it is required to raise or lower the taps. The BEES will be set to a zero power output real and reactive.

3.1.5 Loss of communications Although not a mode of operation, this is an indication of what the device will do for a loss of communications with its controlling RDC. This is relevant when running under Central Mode. The RDC will return to the mode it was in before the communications failure occurred so as to maintain the integrity of the network condition.

3.1.6 Open-loop proving trials GUS shall first be run in open-loop mode. GUS has been designed with an open-loop mode that can be described as operator-in-loop. The control system proposes control actions, which the control engineer then chooses whether or not to implement. The proposals shall be recorded to allow us to gain confidence in the operation of the control system. The purpose of this exercise is to acquire knowledge and understanding that GUS makes appropriate decisions. These are therefore arguably the most significant of the proving trials outlined in this document.

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3.1.7 The formal procedure for managing CLNR trials from concept to delivery

NPG Drawing Office Historic Drg. No. C1029574

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3.1.8 Closed-loop proving trials

Having proven the integrity of the algorithms in open loop mode proposing electrical network interventions, GUS shall then be run in fully automatic closed loop mode. The purpose of this exercise is to confirm the electrical network intervention changes when moving to fully automatic closed loop operation.

3.2 Site Identification All assets installed as part of Northern Powergrid’s CLNR project are suitably labelled on site and are recorded within the Companys asset registers and on all other asset recording systems GIS, Mains records and the Network Management System where appropriate. Confirmation of site location shall be by reference to the operational labelling on site.

Table 1 Locations of Monitoring and Control Equipment

Test Cell Technology

Rise Carr Network

Urban

Rise Carr EES1 Battery 2.5MVA

High Northgate EES2 Battery 100KVA

Harrowgate Hill EES3 Battery 50KVA

Darlington Melrose OnLoad Transformer TapChanger (OLTC) EAVC2

Rise Carr Primary Sub Station OnLoad tap changer EAVC1 on TXNo. 1 & TXNo.2

Real Time Thermal Rating Darlington Melrose LV Under Ground Cables

Real Time Thermal Ratings for Rise Carr Primary Transformer

Real Time Thermal Ratings for Rise Carr EHV HV Underground Cables

Denwick Network

Rural

Wooler Ramsey EES2 Battery 100KVA

Wooler ST Mary EES3 Battery 50KVA

Wooler Bridge OnLoad Transformer Tap Changer (OLTC) EAVC2

Denwick Primary Sub Station On-line tap changer EAVC1 on TXNo. 1 & TXNo.2

Real Time Thermal Ratings for Denwick Primary Transformers

Real Time Thermal Ratings HV Hegdley Moor Over Head Line RTTR OHL

Real Time Thermal Ratings EHV Linton Fdr1 & Fdr2 Over Head Line RTTR OHL

Hedgeley Moor SW HV Capacitor EAVC4

Hepburn Bell & Glanton HV Regulators EAVC3

Real Time Thermal Ratings Wooler Ramsey Tx Wooler STMary Tx

Hexham Network

Heat Pump Cluster

Sidgate Real Time Thermal Ratings on EAVC5 LV Regulator

Sidgate Real Time Thermal Ratings Ground Mounted Secondary Transformer

Maltby Network

PV Cluster

Mortimer Road EES3 Battery 50KVA

Mortimer Road Enhanced Online Transformer Tap Changer (OLTC) EAVC2

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3.3 Operating CLNR and GUS Equipment Authorisation and Training Requirements

CLNR and GUS equipment specified in this guidance and training document shall only be operated by those staff trained and authorised to do so. An outline of the training required for the GUS operators and support staff is detailed in Appendix 1 GUS operations guidance and site training checklist.

3.3.1 Operating GUS terminal authorisation and training requirements To operate the GUS terminal the user shall have a minimum authorisation Code 09.1 to operate as a system control engineer up to and including 20kV Limitations: Limited to GUS operations only. The operator shall have also completed a Siemens GUS operational expert training course including basic and advanced training.

3.3.2 Operating GUS using the NMS control system On demonstrating a competence of Appendix 1 GUS Operations Guidance and Site Training Checklist then a control engineer with authorisation Code 09.1 shall be approved to operate GUS using NMS.

3.4 Operational Procedures Relating to CLNR OLTC and BEES Equipment

Access restrictions apply to all CLNR trial sites where OnLoad Tap Changer (OLTC) Transformers and Battery Electrical Energy Storage (BEES) systems are installed and the equipment is LIVE.

3.4.1 On load tap changer transformer OLTC equipment See OPS/007/001 Operational guidance and training requirements associated with the trial of On Load Tap Change Transformers.

3.4.1.1 Access/Egress to CLNR OLTC transformer trial sites All CLNR Trial sites containing Transformer/OLTC units are designated as “Restricted Access” sites. Labels are fitted to the appropriate access doors notifying staff of the restricted access arrangements. Prior to entry into the site, contact shall be made with the Control Engineer. The Control Engineer will issue appropriate instructions to set the tap-changer on site to Manual. This is to prevent operation of the tap changer whilst personnel are present. (See OPS 007/001 for more detailed operational guidance).

3.4.1.2 Operations at CLNR OLTC transformer trial sites All High Voltage and Low Voltage operations at trial sites will be carried out in accordance with Northern Powergrid’s DSR/OPM. In addition the OLTC on site will be set to Manual, under the instruction of the Control Engineer and will remain on Manual for the duration of operations. On completion of the required operations the OLTC will be returned to Automatic operation under the instructions of the Control Engineer.

3.4.2 Battery electrical energy storage BEES equipment See OPS/007/002 Operational guidance and training requirements associated with the trial of Electrical Energy Storage Battery Systems

Real Time Thermal Rating Mortimer Road Tx

Siemens GUS IT Systems

GUS Central Controller Manor House

Siemens Data ware house Manor House

Data Warehouse Newcastle University

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3.4.2.1 Access/egress to CLNR BEES sites All BEES units at CLNR Trial sites are designated as “Restricted Access” units. Labels are fitted to the appropriate access doors notifying staff of the restricted access arrangements. Prior to entry into the site, contact shall be made with the Control Engineer. See Operational guidance for BEES OPS/007/002.

All BEES Systems are fitted with fire suppression equipment. The fire suppression systems MUST be isolated in accordance with Northern Powergrid operational procedures prior to access into the BEES unit. All access doors to BEES units must remain open while any operations or work is being undertaken inside the BEES enclosure. The fire suppression system SHALL be restored to automatic mode when leaving site. See operational guidance for BEES OPS/007/002 for the detailed operating instructions to disable and enable the fire and smoke suppression systems.

3.4.2.2 Operations at CLNR BEES trial sites All High Voltage and Low Voltage operations at trial sites including BEES units will be carried out in accordance Northern Powergrid’s DSR/OPM and LV Safety Rules. All switching in relation to the isolating device for BEES will be carried out with the agreement of the Control Engineer.

3.4.2.3 Work on low voltage BEES apparatus at CLNR sites All work on Low Voltage Apparatus at CLNR trial sites will be carried out in accordance with Northern Powergrid’s DSR/OPM and LV Safety Rules. Any person commencing work on an LV network to which a BEES is connected shall contact the Control Engineer who will agree and log any operation of the BEES isolating device. The BEES system MUST be considered as a source of energy. Any work on the low voltage network shall include the isolation of any connected BEES, Caution Notices and locks will be utilised where appropriate. Points of isolation are typically:

Removal of the LV Fuses from the BEES isolation unit(industrial service unit) Removal of the LV Fuses at the Substation LV Board (where applicable) Removal of links or fuses from Link boxes

NOTE: The Battery devices cannot be discharged to ground and reference to the manufacturer’s operational manual and safe working practices MUST be adhered to at all times. Specialist training and manufacturers support is in place for this work.

3.4.2.4 Work on high voltage apparatus at Rise Carr CLNR site All work on High Voltage Apparatus at CLNR trial sites will be carried out in accordance with Northern Powergrid’s DSR/OPM. Prior to any work commencing on the HV distribution system associated with the Rise Carr BEES unit, contact shall be made with the Control Engineer who will issue the necessary instructions to isolate the BEES unit from the distribution network. The BEES system MUST be considered as a permanent source of energy. Suitable isolation must be achieved prior to the issue of any safety documentation. At EES1 Rise Carr substation the points of isolation are:

T3 6kV circuit breaker

DC Isolator 1 (when appropriate)

DC Isolator 2 (when appropriate)

Voltage Transformer Links 1 & 2 NOTE: The Battery devices cannot be discharged to ground. Reference to the manufacturer’s operational manual and safe working practices MUST be adhered to at all times. Specialist training and manufacturer support is in place for this work.

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3.5 Operating the GUS System from NMS This section will outline how to navigate the relevant NMS screens to identify, monitor and interrogate the CLNR Project system equipment status and take appropriate action with GUS generated system alarms forwarded onto the NMS system. These alarms are grouped (as is normal practice) into urgent and non urgent. Control engineers will not need to log on to the GUS terminal. All operations will be managed from the NMS system.

3.5.1 NMS HV diagram When logged onto NMS the HV diagram is displayed by selecting the “Diagrams” button on the Application bar; this will open up as the default page. All CLNR substations can be found by the usual search methods such as the ‘location selector’ in the header. All CLNR Project substations have a CLNR label on the NMS diagram to identify them.

A shortcut to CLNR Site information is available from the background drop down menu, then click on CLNR and go to the site required. All CLNR sites will navigate and operate in the same manner as all other NMS substation equipment.

The following figure 3 illustrates Wooler Bridge substation on NMS a typical CLNR site presented in a familiar format. Note the site is clearly labelled as a CLNR site and has the hotspot substation equipment located at the site on the drop down menu and its connection points to the HV network. There is also an Operational Restriction.

Fig 3 NMS CLNR Hotspot Sub Station with Operational Restriction

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3.5.2 Operational restrictions for OLTC and BEES All CLNR sites with On Load Tap Changers (OLTC) or BEES Battery Electrical Energy Storage systems have operational access restrictions. OLTC Control Engineers Message which reads “ACCESS RESTRICTION ‘On Load Tap Changer Installed No LIVE local operation of the tap changer permitted For s/s access the transformer must be set to MANUAL (Non Auto) via the S32 selector sw in the remote panel.” BEES Control Engineers Message which reads “ACCESS RESTRICTION ‘ring control engineer before entering’. Ensure fire suppression system is set to manual.”

3.5.3 Alarm page with GUS enable / disable control feature All CLNR site alarms will be displayed on one alarm page in NMS. The CLNR site network equipment state is available from the NMS background menu. This Page will also have the GUS enable ON/ disable OFF buttons for the three levels of control MODE. Alarms – the alarm will be displayed in four columns sorted by REGION with the SUBSTATION sites see Table 2 following and see screen print Fig4 following.

Table 2 CLNR Sites Grouped into Regional Areas and NPG Control Zones

Denwick Regional Sites

Rise Carr Regional Sites

Sidgate Lane Site Mortimer Road Site

(Blyth Control Zone) (Norton Control Zone) (Fourstones Control Zone) (Thurcroft Control Zone)

Denwick Primary Rise Carr Primary

Wooler Bridge High Northgate Sidgate Lane Mortimer Road

Wooler Ramsey Harrowgate Hill Elgar Drive off Mortimer Road

Wooler St Marys Darlington Melrose

Hedgeley Moor SW Capacitor Bank

Hepburn Bell Regulator

Glanton Regulator

3.5.3.1 CLNR alarms In NMS all of the CLNR alarms can be viewed on one page and will annunciate “my alarms/events bars”. This means that both Manor House and Gelderd Road Control rooms view the same list. Advice is available to the Control Engineer from the alarm list (Crib sheet appendix 3). The CLNR equipment is displayed in the same format as all other HV and LV electrical equipment on NMS. Each CLNR site will have a list of its supressed or commissioned alarms and their status. All alarms show current status and have a historic log just as all NMS equipment currently has.

In the event of a CLNR alarm in NMS, the Control Engineer should firstly refer to CLNR Alarm response summary. This document provides details of actions required in response to any CLNR alarm. The alarm will be identified as urgent or non-urgent with a recommendation of the appropriate Control Engineer’s actions required during normal working hours and out of normal working hours such as: who to contact, when to contact and whether the RDC needs to be switched into the SAFE MODE. See Appendix 2 CLNR Alarm Response Summary.

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Figure 4 CLNR NMS Alarms Page

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Fig 5 CLNR Alarm Response Process Flow Chart

NPG Drawing Office Historic Drg.No. C1029574

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3.5.3.2 Specialised support staff contacts This is a team of engineers with the relevant authorisations, experience, local knowledge and standby cover that have been trained to deal with CLNR Project equipment. These engineers will be available during normal working hours and out of normal working hours. Refer to specialist standby by zone. See Appendix 3 Specialised Support Staff Contacts.

3.5.4 Managing CLNR equipment at the Maltby site from the Gelderd control room Mortimer Road and Elgar Drive can be monitored from the Gelderd Road Control room using NMS CLNR screens. The same NMS screens are available for the Gelderd Road Control Engineers that are in the Manor House Control room. In the event of an alarm from Mortimer Road the same CLNR alarm page can be viewed. The Control engineers alarm response sheet will offer recommendations as to the appropriate response to take.

3.5.5 Enabling and disabling GUS from NMS This feature will be available from the CLNR Alarms Page (See Figure 4). As with any network fault the problem should be identified and isolated with minimum disruption to the rest of the network. To this end GUS is organised to allow responses in three tiers so as to limit and localise any fault impact. The GUS tiers are from the top a global ON/OFF a regional Cell ON/OFF and a local substation RDC ON/OFF. The system for enabling ON buttons and disabling OFF buttons that are displayed on the alarm page.

GLOBAL switches all GUS Sites on or off

REGIONAL switches an area/zone off e.g. Denwick and all its associated substations, Rise Carr and all its associated substations, Sidgate Lane substation, Mortimer Road substation and its associated LV network equipment at Elgar Drive.

SUBSTATION site switches off the local substation (RDC)

3.5.5.1 When it is recommended to switch GUS into SAFE MODE from NMS The following are recommendations of when it might be appropriate to switch GUS into SAFE MODE, there are three safe MODE states: Global full system, test cell (a trial involving a group of substation sites) and an individual substation site. The following are practical examples of why and when SAFE MODE should be used in Global mode, test cell mode and substation site mode. Final decisions will be made by the control engineer.

Global MODE full system – used to switch off all controls to the CLNR equipment when:

OC6 3/6%

Load shedding

Lightning storms

Extreme weather event

Extreme network event

GUS abnormalities

Cyber attack

Control room evacuation

Test Cell MODE – Used to switch off test area or zone that is part of the network when:

Localised weather event

Localised network event

Local cell extreme network event

Local cell GUS abnormalities

Site MODE - to isolate substation equipment when:

Plant urgent alarms

Equipment Fail Fault

Verbal alert

Fire call

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3.5.6 Control limitations of NMS and GUS GUS cannot control electrical operations on the HV or LV network such as tap changing or battery discharge. The GUS computer using PowerCC and the state estimator will only make recommendations for interventions on the Northern Powergrid electrical network. The learning from this trial will be used to develop the GUS parameters, technical configuration and settings of the variable settings using PowerCC & Power Management.

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4. References

4.1 External Documentation

Reference Title

N/A

4.2 Internal documentation

Reference Title Page

OPS/007/001 Operational guidance and training requirements associated with the trial of On Load Tap Change Transformers

OPS/007/002 Operational guidance and training requirements associated with the trial of Electrical Energy Storage Battery Systems

CRL/007/001 Procedure for CLNR GUS Proving Trials

Appendix 1 GUS Operations Guidance and Site Training Appendix Training Checklist

19

Appendix 2 Specialised Support Staff Contacts 21

Appendix 3 CLNR Alarm Response Summary 22

5. Definitions

Reference Title

BEES Battery Electrical Energy Storage

CB Circuit Breaker

DSR NPG Distribution Safety Rules

DSR Demand Side Response

DDM Drop Down Menu

CLNR Customer Led Network Revolution

EAVC Enhanced Automatic Voltage Control

EES Electrical Energy Storage

EHV Extra High Voltage

END Enhanced Network Device

GUS Grand Unified Scheme

Headroom Constraint or limitation that can be thermal or voltage and dynamic

HV High Voltage

OLTC On Load Tap Changer

LV Low Voltage

NMS Network Management System

OPM NPG Operational Practice Manual

RDC Remote Device Controller

RTTR Real Time Thermal Rating

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6 Authority for Issue

6.1 CDS Assurance

I sign to confirm that I have completed and checked this document and I am satisfied with its content and submit it for approval and authorisation.

Sign Date

Lynn Donald Governance and Risk Officer Lynn Donald 09/12/13

6.2 Author I sign to confirm that I have completed and checked this document and I am satisfied with its content and submit it for approval and authorisation.

Standard CDS review of 3 years

Non Standard Review Period & Reason

Yes Period: Reason:

Sign Date

Ian Lloyd LCNF Network Project Manager Ian Lloyd 10/12/13

6.3 Technical Assurance

I sign to confirm that I am satisfied with all aspects of the content and preparation of this document and submit it for approval and authorisation.

Sign Date

Mike Storey Operations Assurance Manager Mike Storey 12/12/13

Paul Norton Head of Safety Paul Norton 13/12/13

Geoff Earl Director of Safety, Health & Environment

Geoff Earl 13/12/13

Ray Partis Control Operations Manager Ray Partis 16/12/13

6.4 Authorisation

Authorisation is granted for publication of this document. Sign Date

Nick Gill Field Operations Director Nick Gill 24/03/14

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Appendix 1 – GUS Operations Guidance and Site Training Checklist Activity Evidence displayed Signature

Demonstrate competence in understanding the CLNR system network components their safety features and their connection to the network

Able to identify CLNR system components, interconnectivity and equipment

Control Engineers Field Operations Engineer Tech Services Protection

GUS Support Team

Demonstrate an understanding of CLNR equipment and principles of EAVC, BEES and DSR

Able to describe CLNR equipment and Control principles and methodology

Control Engineers Field Operations Engineer Tech Services Protection

GUS Support Team

Demonstrate an understanding of CLNR sites operational restrictions access procedures with Control.

Able to describe what the restrictions are and how to safely access CLNR sites following procedures with Control

Control Engineers Field Operations Engineer Tech Services Protection

GUS Support Team

Demonstrate an understanding of the CLNR Alarm response summary sheet

Able to describe how the alarm response summary information is relevant to CLNR system equipment

Control Engineers GUS Support

Demonstrate competence in Firstly; Monitoring and interrogating status and alarms on NMS screens. Secondly; controlling GUS operating modes from NMS

Able to navigate the relevant NMS screens identify, monitor and interrogate the system equipment status and take appropriate action with GUS generated system alarms and NMS generated system alarms urgent and non urgent.

Control Engineers

Demonstrate an competence in the navigation of the GUS GUI system to: Monitor and interrogate the GUS network equipment status Operate GUS operating mode from GUS GUI.

Able to navigate the GUS GUI system to identify, monitor and interrogate the system equipment status and take appropriate action with GUS generated system alarms and NMS generated system alarms urgent and non urgent.

GUS Support Team

Demonstrate competence in operation of the GUS Control System in conjunction with NMS systems to perform live CLNR trials

Able to identify the key points of GUS technical configuration and settings of the variable parameters using PowerCC & Power Management

Gus Support Team Tech Services Protection

Demonstrate a competence to switch GUS into SAFE MODE from the NMS system and the GUS system

Able to give practical examples of how SAFE MODE is used. Should be able to demonstrate how to switch GUS into SAFE MODE for global, regional and substation instances

Control Engineers GUS Support Team

Demonstrate an understanding of RDC’s and how they work with GUS and end devices.

Able to identify the key points of the configuration and settings of the variable parameters.

Technical Services Protection GUS Support Team

Can identify the escalation procedure relating to a system fault, incident or emergency involving CLNR equipment

Able to identify a system alarm, incident or fault and take the appropriate response

Control Engineers Field Operations Engineer Tech Services Protection

GUS Support Team

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Authorisation Reference Achieved Sign Date

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Appendix 2 CLNR Specialised Equipment Trained Engineers

NPG Field Northern NPG Maintenance NPG Filed Yorkshire NPG Technical Services

A Webster N Turnbull T King M Crowe

I Lloyd John Mason S Parkin R Shepherd

A Deighton Keith Daly Martin Bye A Thompson

S Sproats A Somerset J Fenton Andy Shepherd

C Walker A Craggs D Allott

S Bowling R Puryer R Swift

C Hogg Gary Powell J Myers

K Maskell K Liddle P Bingham

S Sproates C Watson

James Brown P Jones

Aisha Ahmad P Fox

G Homer T Carlton

I Robinson A Walton

D Lee

C Dougall

C Burgess

T Tinkler

K Murray

M Ingram

M Edmonson

C Walker

S Bowling

Footnotes for appendix 2 During normal working hours contact Ian Lloyd or Andrew Webster.

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Appendix 3 CLNR Alarm Response Summary (Control Engineers Crib Sheet)