EOS 05-9305 Lucy Gemini 3 Type E RTU - UK Power...

Document Number: EOS 05-9305

Version: 3.0

Date: 07/06/2017

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ENGINEERING OPERATION STANDARD

EOS 05-9305

LUCY GEMINI 3 TYPE E RTU

Network(s): EPN, LPN, SPN

Summary: This standard details the application, installation and operation of the Lucy Gemini 3 Type E RTU.

Author: James Ford Date: 07/06/2017

Approver: Paul Williams Date: 19/05/2017

This document forms part of the Company’s Integrated Business System and its requirements are mandatory throughout UK Power Networks. Departure from these requirements may only be taken with the written approval of the Director of Asset Management. If you have any queries about this document please contact the author or owner of the current issue.

Applicable To

UK Power Networks External

☒ Asset Management ☒ G81 Website

☒ Capital Programme ☒ UK Power Networks Services

☒ Connections ☒ Contractors

☒ Health & Safety ☒ ICPs/IDNOs

☐ Legal ☐ Meter Operators

☒ Network Operations

☒ Procurement

☐ Strategy & Regulation

☒ Technical Training

Lucy Gemini 3 Type E RTU Document Number: EOS 05-9305

Version: 3.0

Date: 07/06/2017

© UK Power Networks 2017 All rights reserved 2 of 15

Revision Record

Version 3.0 Review Date 01/12/2021

Date 07/06/2017 Author James Ford

Reason for update: Updated

What has changed: Document moved onto new template and additional items added to stores code table and EPN/SPN RMU retrofit options included

Version 2.0 Review Date 01/12/2021


Reason for update: First year review

What has changed: Updated for UKPN specification RMUs and scope reduced to only Type E RTUs

Document title revised

Version 1.0 Review Date 1 year from approval date


Document moved onto new template and revised.


Version: 3.0

Date: 07/06/2017


Contents

1 Introduction ............................................................................................................. 4

2 Scope ....................................................................................................................... 4

3 Glossary and Abbreviations ................................................................................... 4

4 Description............................................................................................................... 5

4.1 Lucy Gemini 3 Type E RTU Overview ....................................................................... 5

4.2 Lucy Gemini 3 Type E RTU ....................................................................................... 6

5 Operation ................................................................................................................. 7

5.1 Local Controls and Indications ................................................................................... 7

5.2 Local Operations from the Control Unit ...................................................................... 7

6 Telecontrol ............................................................................................................... 8

6.1 Power-On Controls .................................................................................................... 8

6.2 Power-On Indications and Alarms ............................................................................. 8

7 Asset Register Data ............................................................................................... 12

8 Manufacturer’s Documentation ............................................................................ 12

9 Installation and Commissioning ........................................................................... 12

10 Inspection and Maintenance ................................................................................. 12

11 References ............................................................................................................. 13

11.1 UK Power Networks Standards ............................................................................... 13

11.2 National and International Standards ....................................................................... 13

12 Dependent Documents.......................................................................................... 13

Appendix A Basic HMI Operations .................................................................................. 14

A.1 Set the RTU to ‘Local’, ‘Remote’ or ‘Off’ using the HMI. ........................................... 14

A.2 Operate a Switch or Circuit Breaker ........................................................................ 15

A.3 Reset FPI Alarm ...................................................................................................... 15

Figures

Figure 1 – Lucy Gemini 3 Control Unit and RTU Layout ........................................................ 6

Figure 2 – HMI fitted to inside of RTU cabinet door ............................................................... 7

Tables

Table 1 – Power-On controls ................................................................................................. 8

Table 2 – Power-On Digital Indications and Alarms .............................................................. 8

Table 3 – Power-On Analogue Indications .......................................................................... 10

Table 4 – Lucy Gemini 3 Ellipse Data ................................................................................. 12


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Date: 07/06/2017


1 Introduction

This standard details the application, installation and operation of the Lucy Gemini 3 range of remote terminal units (RTU). The following is included in this document:

General description;

Local operation;

Power-On telecontrol facilities;

Asset Register details;

Installation and commissioning;

Inspection and maintenance;

Documentation.

Type E RTUs are used to provide control and monitoring for ground mounted secondary switchgear.

2 Scope

This standard applies to the following:

Lucy Gemini 3 (Type E) RTU used with LPN design secondary switchgear on the LPN secondary distribution networks (11kV);

Lucy Gemini 3 (Type E) RTU used with EPN and SPN specification Lucy RMUs in place of the Gemini 2.5 RTU;

Lucy Gemini 3 (Type E) RTU used with the new UKPN design secondary switchgear on the EPN, LPN and SPN secondary distribution networks (11kV).

3 Glossary and Abbreviations

Term Definition

ACB Air Circuit Breaker

CB Circuit Breaker

CT Current Transformer

DNP3 SCADA Protocol

DSL Digital Subscriber Line (broadband comms over copper cables). ADSL circuits are rented and SHDSL are UK Power Networks owned

EFPI Earth Fault passage Indicator

FPI Fault Passage Indicator

GPRS/3G/4G Communications networks provided by Vodafone and O2

HMI Human/Machine Interface

I/O Input/Output, analogue, digital and control data

IP Internet Protocol

LV Low Voltage

PAKNET Data comms service provided by Vodafone

PLTU Parasitic Load Tripping Unit

Power-On Network management system used in UK Power Networks

RJ45 Standard communications plug/socket interface


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RMU Ring main Unit

RTU Remote Terminal Unit

SIM Subscriber Identity Module. Identity card used to provide access to GPRS/3G/4G networks

SCADA Supervisory Control and Data Acquisition

THD Total Harmonic Distortion

TX Transformer

UK Power Networks

UK Power Networks (Operations) Ltd consists of three electricity distribution networks:

Eastern Power Networks plc (EPN).

London Power Network plc (LPN).

South Eastern Power Networks plc (SPN).

4 Description

4.1 Lucy Gemini 3 Type E RTU Overview

The Gemini 3 Type E RTU/Controller includes the following features:

Remote control of up to four switches or circuit-breakers (depending on ground mount or pole mount version);

Integral FPI/EFPI functionality;

Integral PLTU functionality;

Mains powered with battery back-up;

Battery test/monitoring functionality;

Self monitoring;

IP Communications (including GPRS/3G/4G, xDSL, Satellite and Fibre);

PAKNET Communications;

DNP3 protocol;

Control/monitoring of all UK Power Network spec RMUs and ACBs;

A, V, kW kVA kVAr monitoring of the TX LV (depending on the capabilities of the power meter installed);

Current monitoring of the RMU Tee CB (depending on the capabilities of the protection relay/transducer installed);

Current monitoring of the RMU ring switches via the FPI CTs and RTU/RMU Umbilical cables;

Remote configuration capability;

Additional hardwired I/O not included in the Type E RTU design can be connected using the Auxiliary I/O box.


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4.2 Lucy Gemini 3 Type E RTU

The Lucy Gemini 3 RTU/Controller provides the control and monitoring functionality for:

UKPN Spec RMUs.

LPN Spec RMUs.

LPN ACBs.

11kV/LV Transformer LV way.

EPN/SPN Spec Lucy RMUs (in place of the Gemini 2.5).

The Gemini 3 RTU/Controller utilises modern IP communications and can operate with any compliant IP communications systems, such as GPRS/3G, DSL etc, and will also operate using the PAKNET system.

The main details of the Gemini 3 Type E RTU are shown in Figure 1.

Figure 1 – Lucy Gemini 3 Control Unit and RTU Layout

The ground mount RTU can be mounted to the wall of a GRP or brick substation, or can be mounted using a floor standing frame in an open substation.


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5 Operation

5.1 Local Controls and Indications

Local controls and indications are facilitated by the use of the HMI mounted on the inside of the cabinet door, see Figure 2.

Figure 2 – HMI fitted to inside of RTU cabinet door

5.2 Local Operations from the Control Unit

The HMI (see Figure 2) can be configured to initiate or display any function the RTU is capable of, such as:

Local/remote selection.

Switch or circuit-breaker open/close.

Dummy circuit-breaker open/close.

Check analogue values.

Check alarm/indication states.

Open or Close a Switch or Circuit Breaker

Using the Arrow Keys select ‘Control’ in the menu and press ‘OK’.

Using the Arrow Keys select the desired switch and press ‘OK’.

Press and hold the ‘Act’ and either the ‘Open’ or ‘Close’ buttons for approx. 5 seconds. When the HMI display shows ‘Operating’, release the buttons.

If the switchgear being operated is an RN2C there will be a delay of up to 5 seconds before the actuator starts operating, all other switchgear will operate immediately.

After the delay (if any), the appropriate switch/CB should operate and the indication on the HMI will show ‘Operation Finished’ and ‘Open’ or ‘Closed’ and the LED on the relevant DSM Module will indicate the correct switch position.


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6 Telecontrol

Full telecontrol facilities including remote control, indications and alarms are available from Power-On and described in this section.

6.1 Power-On Controls

The available telecontrol operations are given in Table 1.

Table 1 – Power-On controls

Description Comments

Switch/CB Open/Close (up to 4) Connected via umbilical cables

Dummy Circuit-breaker Open/Close Internal to RTU

Start/Stop battery test Internal to RTU

Reset FPI Connected via umbilical cables

PLTU 1 Logic Enable/Disable Internal to RTU

6.2 Power-On Indications and Alarms

The available telecontrol indications and alarms are shown in Table 2 and Table 3. All plant failure alarms should be reported for investigation and remedial action in a timely manner to avoid failure of the equipment.

Table 2 – Power-On Digital Indications and Alarms


Switch/CB Open/Closed (up to 4) Connected via umbilical cables

Dummy Circuit-breaker Open/Closed Internal to RTU

LV1 loss of voltage Internal to RTU


Power Meter 1 Comms failed Internal to RTU


Mains Fail Internal to RTU

RTU Imminent Shutdown The RTU will shutdown in one hour to preserve battery. Internal to RTU

RTU charger failure Internal to RTU

Battery test RTU battery test result

Battery failure RTU battery voltage below threshold

Common RTU/plant fault Internal to RTU

Watchdog restart RTU has been restarted due to an internal watchdog. Internal to RTU

RTU has been reset Internal to RTU

RTU Cabinet Door open Internal to RTU

Flood Alarm Connected via additional I/O box

Intruder Alarm Connected via additional I/O box


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Switch on local control Internal to RTU

PLTU Logic Disabled Internal to RTU

PLTU Logic Operated Internal to RTU

PLTU Logic Failed to Operate Internal to RTU

PLTU Switch 1/2 Voltage Mismatch Internal to RTU

Switch 1 Phase Fault Internal to RTU

Switch 1 Earth Fault Internal to RTU







Switch 1 FPI Connected via umbilical cables




Switch 1 Actuator Disabled Internal to RTU




TLF / Protection operated Connected via umbilical cables

Low Gas Connected via umbilical cables

Switch 1 L1 HV voltage lost Internal to RTU






RTU has power cycled router Internal to RTU

Modbus device 3 comms failed Internal to RTU











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Table 3 – Power-On Analogue Indications


Switch 1 L1 HV Current Connected via umbilical cables






Switch 3 L1 HV Current (via RTU input) Spare for future I/O






LV1 Real Power (kW) From TX LV Way monitoring unit

LV1 Apparent Power (kVA) From TX LV Way monitoring unit

LV1 Reactive Power (kVAr) From TX LV Way monitoring unit

LV1 Power Factor From TX LV Way monitoring unit

LV1 L1 (red) Phase Voltage From TX LV Way monitoring unit

LV1 L1 (red) Phase Current From TX LV Way monitoring unit

LV1 L1 (red) Phase Voltage THD (%) From TX LV Way monitoring unit

LV1 L1 (red) Phase Current THD (%) From TX LV Way monitoring unit

LV1 L1 (red) Phase Real Power (kW) From TX LV Way monitoring unit

LV1 L2 (yellow) Phase Voltage From TX LV Way monitoring unit

LV1 L2 (yellow) Phase Current From TX LV Way monitoring unit

LV1 L2 (yellow) Phase Voltage THD (%) From TX LV Way monitoring unit

LV1 L2 (yellow) Phase Real Power (kW) From TX LV Way monitoring unit

LV1 L3 (blue) Phase Voltage From TX LV Way monitoring unit

LV1 L3 (blue) Phase Current From TX LV Way monitoring unit

LV1 L3 (blue) Phase Voltage THD (%) From TX LV Way monitoring unit

LV1 L3 (blue) Phase Current THD (%) From TX LV Way monitoring unit

LV1 L3 (blue) Phase Real Power (kW) From TX LV Way monitoring unit

LV1 Neutral Current From TX LV Way monitoring unit

LV2 Real Power (kW) From TX LV Way monitoring unit

LV2 Apparent Power (kVA) From TX LV Way monitoring unit

LV2 Reactive Power (kVAr) From TX LV Way monitoring unit

LV2 Power Factor From TX LV Way monitoring unit

LV2 L1 (red) Phase Voltage From TX LV Way monitoring unit

LV2 L1 (red) Phase Current From TX LV Way monitoring unit

LV2 L1 (red) Phase Voltage THD (%) From TX LV Way monitoring unit

LV2 L1 (red) Phase Current THD (%) From TX LV Way monitoring unit

LV2 L1 (red) Phase Real Power (kW) From TX LV Way monitoring unit


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LV2 L2 (yellow) Phase Voltage From TX LV Way monitoring unit

LV2 L2 (yellow) Phase Current From TX LV Way monitoring unit

LV2 L2 (yellow) Phase Voltage THD (%) From TX LV Way monitoring unit

LV2 L2 (yellow) Phase Current THD (%) From TX LV Way monitoring unit

LV2 L2 (yellow) Phase Real Power (kW) From TX LV Way monitoring unit

LV2 L3 (blue) Phase Voltage From TX LV Way monitoring unit

LV2 L3 (blue) Phase Current From TX LV Way monitoring unit

LV2 L3 (blue) Phase Voltage THD (%) From TX LV Way monitoring unit

LV2 L3 (blue) Phase Current THD (%) From TX LV Way monitoring unit

LV2 L3 (blue) Phase Real Power (kW) From TX LV Way monitoring unit

LV2 Neutral Current From TX LV Way monitoring unit

Air Temperature Internal to RTU

Transformer 1 Temperature Connected via additional I/O box

Transformer 2 Temperature Connected via additional I/O box

RTU Battery Voltage Internal to RTU

RTU Battery Current Internal to RTU

Switch 3 L1 HV Current (via modbus) Connected via comms bus







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7 Asset Register Data

The Gemini 3 RTU is recorded in the Asset Register as a control unit (class CU). Table 4 outlines the asset data that should be recorded.

Table 4 – Lucy Gemini 3 Ellipse Data

ATTRIBUTE NAME ATTRIBUTE DESC NPL VALUE TABLE TYPE ART REF

BATTERYTYPE Control Unit Battery Type 2-L12V15 $BTY NC

BATYEARMANUF Battery Year Of Manufacture $YYN NC

RTUNAME RTU Name (LPN) NC

SOFTCONFIG RTU Software/Config Version $SOF NC

BATTERYCOOL Battery Cooler Fitted N NC

MDL Manufacturers Type/Model GEMINI3 C

MFR Manufacturers Name LUC $MFR C

YEARMANUF Year Manufactured (E=Estimate) 0000 $YMN C

SERIALNO Serial Number C

8 Manufacturer’s Documentation

The manufacturer’s user manual is available in the Asset Management Site and Reference library within Alfresco under the following path:

Reference Library > Manufacturers > Lucy.

9 Installation and Commissioning

The installation details are given in document ECS 05-9540.

The RTU configurations details are given in document ECS 05-9541.

The Substation commissioning details are given in document ECP 11-0501.

10 Inspection and Maintenance

The Gemini 3 is nominally maintenance free. The battery is designed for a life of 8 years and should be replaced after this time. All Gemini 3 control units will have a maintenance schedule task (MST) setup in the Asset Register for the battery replacement in accordance with EMS 10-0002 ‘Inspection and Maintenance Frequency Schedule’.

Additionally, the battery is also monitored via telecontrol. If a battery failure alarm is received in Power-On the battery should be replaced immediately.

http://egrpsql01.ukpn.local/ReportServer?%2fAsset+Reports%2fTable+Type+Lookup&TAB_TYP=%24BTY&rs%3aParameterLanguage=

http://egrpsql01.ukpn.local/ReportServer?%2fAsset+Reports%2fTable+Type+Lookup&TAB_TYP=%24YYN&rs%3aParameterLanguage=

http://egrpsql01.ukpn.local/ReportServer?%2fAsset+Reports%2fAsset+Registration+Form&TAB_TYP=++++&rs%3aParameterLanguage=

http://egrpsql01.ukpn.local/ReportServer?%2fAsset+Reports%2fTable+Type+Lookup&TAB_TYP=%24SOF&rs%3aParameterLanguage=



http://egrpsql01.ukpn.local/ReportServer?%2fAsset+Reports%2fTable+Type+Lookup&TAB_TYP=%24MFR&rs%3aParameterLanguage=

http://egrpsql01.ukpn.local/ReportServer?%2fAsset+Reports%2fTable+Type+Lookup&TAB_TYP=%24YMN&rs%3aParameterLanguage=



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11 References

11.1 UK Power Networks Standards

EAS 05-9015 Lucy Gemini 3 RTU

ECP 11-0501 Secondary Ground Mount Substation Commissioning Procedures

ECP 11-0601 GPRS/3G/4G Comms Device Commissioning Procedure

ECS 05-9540 Type E RTU and Ancillary Items Installation Procedure

ECS 05-9541 Lucy Gemini 3 Configuration Procedure

EDS 05-9003 UK Power Networks RTU Specification

EMS 10-0002 Inspection and Maintenance Frequency Schedule

11.2 National and International Standards

The Distribution Code (http://www.dcode.org.uk/)

The Electricity Safety, Quality and Continuity Regulations (ESQC) 2002 as amended (2006)

BS 7671:2008 incorporating Amendment No 1: 2011 – Requirements for Electrical Installations (IEE Wiring Regulations Seventeenth Edition)

12 Dependent Documents

The documents below are dependent on the content of this document and may be affected by any changes.

EAS 05-9015 Lucy Gemini 3 RTU

EAS 05-9017 Type E RTU Ancillary Items (Lucy Electric)

EBP 03-0102 HV Switchgear Remote Control Changes

ECP 11-0501 Secondary Ground Mount Substation Commissioning Procedures

ECP 11-0601 GPRS/3G/4G Comms Device Commissioning Procedure

ECS 05-9540 Type E RTU and Ancillary Items Installation Procedure

ECS 05-9541 Lucy Gemini 3 Configuration Procedure

http://www.dcode.org.uk/


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Appendix A Basic HMI Operations

This Appendix details how to use the HMI to:

Set the RTU to Local/Remote/Off

Operate a Switch/Circuit Breaker

Reset the FPI

Pressing the ‘Menu’ button at any time will take you back to the start page of the HMI.

Pressing the ‘ESC’ button at any time will take you back one menu level of the HMI.

Always remember to set the HMI to ‘Local’ before leaving site.

A.1 Set the RTU to ‘Local’, ‘Remote’ or ‘Off’ using the HMI.

To toggle between ‘Local’ and ‘Remote’, press and hold the ‘Mode’ button for 1 second then release. The status will only change once the button is released.

To set the RTU controls to ‘Off’ (this means controls cannot be operated either remotely or locally), press and hold the ‘Mode’ button for approx. 5 seconds then release. To return the HMI to ‘Local’ or ‘Remote’, press and hold the ‘Mode’ button for approx. 1 second and release.


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A.2 Operate a Switch or Circuit Breaker

Refer to the information located on the inside of the RTU door to identify which RTU switch is connected to which RMU circuit breaker/switch.

Press the ‘Menu’ button.

Using the Arrow keys, select the desired Switch/Circuit Breaker and press ‘OK’.

Using the Arrow Keys select ‘Controls’ in the menu and press ‘OK’.

Using the Arrow Keys select ‘RTU SW’x’ Open/Close’ (x = the desired RTU switch number) in the menu and press ‘OK’.

Press and hold the ‘Act’ button together with either the ‘Open’ or ‘Close’ buttons for approx. 5 seconds. When the HMI display shows ‘Operating’, release the buttons.

If the switchgear being operated is an RN2C there will be a delay of up to 5 seconds before the actuator starts operating, all other switchgear will operate immediately.

After the delay (if any), the appropriate switch/CB should operate and the indication on the HMI will show ‘Operation Finished’ and ‘Open’ or ‘Closed’.

A.3 Reset FPI Alarm

Press the ‘Menu’ button.

Using the Arrow keys, select the desired Switch/Circuit Breaker and press ‘OK’.

Using the Arrow Keys select ‘Controls’ in the menu and press ‘OK’.

Using the Arrow Keys select ‘FPI Reset’ in the menu and press ‘OK’.

Press and hold the ‘Act’ button together with either the ‘Close’ button for approx. 5 seconds.

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