MESP 000003-06 SUBSTATION EQUIPMENT, DEVICE … · MESP 000003-06 SUBSTATION EQUIPMENT, DEVICE AND...

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Engineering Specification

Electrical Networks

MESP 000003-06 SUBSTATION EQUIPMENT, DEVICE AND WIRE

NAMING AND NUMBERING

Version: 1

Issued: February 2017

Owner: Head of Engineering - Electrical

Approved By:

Andrew Russack

Head of Engineering - Electrical

ELECTRICAL SPECIFICATION SUBSTATION EQUIPMENT, DEVICE AND WIRE


MESP 000003-06 Version: 1 Effective from: 21st February 2017

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Approving Manager: Head of Engineering - Electrical Approval Date: 21/02/2017 Next Review Date: 21/02/2020 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION of 44

Approval

Amendment Record

Approval Date Version Description

21/02/2017 1 Initial issue.




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Table of Contents 1 Purpose ........................................................................................................................... 4

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

3 Abbreviations .................................................................................................................. 4

4 Definitions ....................................................................................................................... 4

5 References ...................................................................................................................... 5

5.1 Related Documents .......................................................................................................... 5

5.2 References ........................................................................................................................ 5

5.3 Latest Issues and Amendments ....................................................................................... 5

6 Principle .......................................................................................................................... 5

7 Substation Equipment Naming ...................................................................................... 5

7.1 General ............................................................................................................................. 5

7.2 Conventions ...................................................................................................................... 6

7.2.1 HV AC Switchgear .......................................................................................... 6 7.2.2 Rectifier Units .................................................................................................. 6 7.2.3 1500V DC Switchgear..................................................................................... 6 7.2.4 Signal & Essential Services Switchgear ......................................................... 7 7.2.5 Buses .............................................................................................................. 7 7.2.6 Transformers and UPS units .......................................................................... 7 7.2.7 Other ............................................................................................................... 8

8 Device and Component Numbering .............................................................................. 8

8.1 Background ....................................................................................................................... 8 8.2 Requirements .................................................................................................................... 8

9 Wire and Cable Numbering ............................................................................................ 9

9.1 Background ....................................................................................................................... 9 9.2 Principles .......................................................................................................................... 9

9.3 Preferred Wire Numbering ................................................................................................ 9

9.4 Manufacturer Wire Numbering ........................................................................................ 10

9.5 Cable Numbering ............................................................................................................ 10

9.5.1 SCADA Cable Numbers................................................................................ 11 9.5.2 Non-SCADA Cable Numbers ........................................................................ 12

9.6 Labelling .......................................................................................................................... 12

Appendix 1: MTM Device Numbers ............................................................................................ 13

Appendix 2: Device and Wire Numbering Example – Rectifier Control Circuit ...................... 24

Appendix 3: Historical Device Numbers .................................................................................... 26




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1 Purpose This document sets out requirements and conventions for the naming and numbering of equipment, devices and control wiring in all High Voltage Installations on the MTM network to ensure consistency and accuracy for the safe operation and maintenance of all equipment.

It is imperative that labels are applied to enable the naming convention to be utilised in the field, and that these labels are appropriate. Information on labelling can be found within MESP 000003-04 Substation Signage and Labelling.

2 Scope This document applies to all traction substations, tie stations, switching stations, signal power supplies, industrial substations and other high voltage installations maintained by the MTM Electrical Networks Department. It need not be applied to power installations maintained by the Structures and Facilities Department.

3 Abbreviations ACCB – Alternating Current Circuit Breaker (HV)

CT – Current Transformer

DCCB – Direct Current Circuit Breaker

HV – High Voltage

MCB – Miniature Circuit Breaker (LV)

MTM – Metro Trains Melbourne

VT – Voltage Transformer

4 Definitions Device Means an active component of a control system, including relays,

switches, pushbuttons, etc. Items such as fuses, resistors and transformers are not included in this definition.

Equipment Includes High Voltage Switchgear, Transformers, Rectifiers and associated items.

High Voltage Means a nominal voltage of 650V or greater.

Shall Is used as the descriptive word to express a requirement that is mandatory to achieve conformance to the standard.

Should Is used as the descriptive word to express a requirement that is recommended in order to achieve compliance to the standard. Should can also be used if a requirement is a design goal but not a mandatory requirement.




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Substation For the purpose of this document refers to a high voltage installation maintained by the MTM Electrical Networks Department, including traction substations, tie stations, switching stations, signal power supplies and industrial substations.

5 References

5.1 Related Documents MESP 000003-04(1) Substation Signage and Labelling

5.2 References The following standards are provided as informative references. Requirements for compliance with standards are described throughout the document.

AS 2067 Substations and high voltage installations exceeding 1 kV a.c.

ANSI / IEEE C37.2 Standard for Electrical Power System Device Function Numbers, Acronyms and Contact Designations

5.3 Latest Issues and Amendments Reference to all standards shall be read as a reference to the latest edition of that standard and amendments available at the time of tendering.

6 Principle Each individual device in a substation has a unique number identifying the type of device it is, and each piece of equipment a unique name within that substation. Thus, each piece of equipment can be identified easily and unambiguously by operators and maintainers.

7 Substation Equipment Naming

7.1 General Each piece of substation equipment shall be uniquely named within that particular substation.

The name of the equipment shall, by following the convention below, allow for easy identification of the type, purpose and in some cases, voltage of the equipment.




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7.2 Conventions

7.2.1 HV AC Switchgear For HV AC switchgear, including isolators, switches, fuses, ACCBs, and earth switches, naming shall be in the format “AA/B C”, where:

• AA is the voltage in kV, truncated (not rounded) to a whole number (e.g. 22, 11 or 6)

• B designates the equipment connected to the bus by this switchgear:

o Rx – Rectifier x, matching the name of the Rectifier Assembly.

o xx – MTM Feeder AA/xx, e.g. “22/61”

o Power company feeder number, e.g. “FGY 6”

o For any other equipment, the name of the connected equipment.

• C is the type of switchgear:

o Switch

o Fuse Isolator (or Fuse Isol.)

o Isolator

o ACCB

o Earth Switch

Where an HV feeder is connected to a bus by an isolator, then an ACCB, then a second isolator; the isolator directly connected to the bus shall be named “AA/xx Bus Isolator”

Bus tie ACCBs should be named “AA/Bus Tie x&y” where x is the number of the bus on the supply side of the ACCB and y is the number of the bus on the line side (with the bus riser connected to it).

7.2.2 Rectifier Units For Rectifier Assemblies, each unit shall be named “Rx” where x is a number, different for each rectifier unit at the substation. This shall apply regardless of whether there is more than one rectifier unit at the substation.

For Rectifier Control Systems, naming shall be “Rx Control” where Rx is the name of the Rectifier Assembly being controlled.

Rectifier Transformers shall be named “RTx” where x is a number and Rx is the name of the corresponding Rectifier Assembly.

7.2.3 1500V DC Switchgear 1500V DC Switchgear (DCCBs and Isolators) shall be named:

• For Section DCCBs, the number of the section, e.g. “431”

• For Rectifier DCCBs, “Rx DCCB” where Rx is the name of the connected Rectifier Assembly.




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• For Rectifier Isolators “Rx DC Isolator” where Rx is the name of the connected Rectifier Assembly

• For Bus Tie DCCBs, “Bus Tie x & y DCCB” where x is the number of the bus which contains the Bus Tie DCCB and y is the number of the connected bus.

• For Bus Tie Isolators, “Bus Tie x & y Isolator” where x is the number of the bus which contains the Bus Tie DCCB and y is the number of the connected bus.

1500V DC short circuit switches shall be known by the number of the section or subsection to which they are connected, e.g. “Section 431 Short Circuit Switch”

7.2.4 Signal & Essential Services Switchgear Signal switchgear shall be named in accordance with the naming convention outlined in L1-CHE-INS-028 Design Practice Note - Signalling and High Voltage Equipment Enclosure Nomenclature Requirements, i.e. xAyyy where x is the number of the device on the bus, A is a letter indicating the line on which the bus is located, and yyy the distance in hundreds of feet from Flinders Street Station.

Generally the lower number on the bus (x) will be on the western end in accordance with existing practice. At a typical location, devices 1 and 3 will be track feeders and device 2 connected to the transformer.

7.2.5 Buses Buses shall be named:

• In the case of only one bus, the voltage of the bus, AC or DC, and the word “Bus”, e.g. “1500V DC Bus” or “22kV AC Bus”

• In the case of multiple buses, the voltage of the bus, AC or DC, and the words “Bus No. x” where x is a number, e.g. “1500V DC Bus No. 1” or “22kV AC Bus No. 2”

7.2.6 Transformers and UPS units Essential Services and Auxiliary Transformers shall be named “ESATx” where x is a number, regardless of whether there is more than one such transformer at the substation.

Essential Services UPS units shall be named “UPSx” where x is a number which corresponds to the number of the ESAT to which it is connected.

Essential Services Step Up Transformers, where not integral to the UPS, shall be named “ESTx”, where x corresponds to the number of the UPS to which it is connected, as far as possible.

Transformers used exclusively for signal power supply shall be named “STx” where x is a number, regardless of whether there is more than one Signal Transformer at the substation.

Transformers used exclusively for substation auxiliary services shall be named “ATx” where x is a number, regardless of whether there is more than one Auxiliary Transformer at the substation.




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Isolating Transformers shall be named “xxx Isolating Transformer” where xxx is the name of the equipment being isolated.

Transformers within industrial substations, or for stepping up from 11kV to 22kV may be named in the format “Tx” where x is a number, regardless of whether there is more than one such transformer at the substation.

Other transformers shall be named in the format “aTx” where a is up to three letters describing the transformer’s purpose, and x is a number, e.g. “MBT1” for a transformer supplying a train maintenance building.

7.2.7 Other All other equipment shall be named uniquely in a way which succinctly describes its purpose and the type of equipment which it is.

8 Device and Component Numbering

8.1 Background Device numbering was introduced with automatic (unmanned) substations in the 1920s-30s. A system of unique device numbers then developed based on the ANSI/IEEE Standard C37.2 and its predecessors.

Due to technology change over time, there are now over 500 device numbers which have been used, many of which are now obsolete and no longer relevant to the MTM network. A list of all known used device numbers is provided in Appendix 2 for reference.

All new designs shall utilise the system of device numbering described in Appendix 1, which is largely compliant with the IEEE Std C37.2-2008.

A conversion table for typical device numbers used prior to the issue of this document has been provided in Appendix 3 for reference in relation to existing installations.

8.2 Requirements All devices which feature on control circuit drawings shall be allocated a unique device number which shall be marked on the relevant engineering drawings and on the device itself in accordance with MESP 000003-04 Substation Signage and Labelling. The drawings shall include a listing of device numbers and their descriptions.

A list of current device numbers expected is located in Appendix 1. Devices shall be allocated a number from this list where one is provided.

If the device type is not listed in Appendix 1, a new device number shall be created by the Office of the Chief Engineer and added to the listing. New device numbers should not have been used for any previous devices as listed in Appendix 2 which are likely to still be in service. They should, where possible, align with ANSI/IEEE Standard C37.2, and if this is not possible, should be a number not used in ANSI/IEEE Standard C37.2.

Components such as resistors, diodes, capacitors, inductors, transformers, fuses, links and MCBs shall be uniquely named in the format “Axxx” where A is a letter shown below and xxx is a two or three digit number. The numbers used shall be listed and described on the relevant engineering drawings.




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The changeover switch, rectifier control switch/MCB, and supervisory control switch on the LV AC switchboard shall be given device numbers.

Table 1: Component Designations

C Capacitors D Diodes F Fuses H Lamps L Links Q MCBs T Transformers

9 Wire and Cable Numbering

9.1 Background Historically, wire numbers within railway substations were assigned in accordance with prescriptive Australian standards. More recently, wire numbers have been left to the discretion of manufacturers and designers, with the effect that there are many differing schemes in use.

9.2 Principles Wiring belongs to a control system (e.g. Rectifier Control System, Bus Protection System etc.), not to equipment. All wiring within that control system should utilise a consistent numbering format.

Every branch of any connection should bear the same identification mark. That is, a wire number should only change when passing through a coil, contact, removable link, fuse or circuit breaker etc.

9.3 Preferred Wire Numbering Where a switchgear manufacturer provides drawings which utilise a different numbering system this may be retained (refer section 9.4). Where a design is completed specifically for MTM, the following principles are to be applied for the naming of wires (in accordance with Appendix E of AS 2067:2016):

• Wires should be numbered according to their function as shown in Table 2. This number consists of a single letter code identifying the function and a suffix number of one or more digits as required.

• Where a number of similar wires from separate equipment are taken to a common panel (such as bus protection), a suffix letter should be added to distinguish them.

• Where more than one function is covered by a wire, the first of the appropriate function letters shall be used.

• Coils and contacts of relays should not necessarily utilise the same function letter




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Table 2: Wire Functions Letter Circuit Function Wire Numbers

B CTs for bus protection 10-29 Red phase 30-49 White phase 50-69 Blue phase 70-89 Residual and neutral CTs 90 Earth wires directly connected to the earth bar 91-99 Test windings, normally inoperative.

C CTs for feeder, transformer or rectifier protection

D CTs for instruments and metering

E Reference voltage for instruments, metering and protection

G Reference voltage for synchronising

H AC supplies 1-69 Switchgear 70-99 Transformers J DC supplies (odd numbers positive, even

numbers negative) K Closing and tripping control circuits Any number L Alarms and indications, not for SCADA Any number

M Auxiliary and control motor devices 1-19 Switchgear 70-99 Transformers

R Interlock circuits Any number

T Pilot conductors for pilot wire protection or intertripping Any number

U Spare cores and connections to spare contacts Any number W Connections to and from interposing relays Any number X Connections to and from SCADA Any number

9.4 Manufacturer Wire Numbering Where a manufacturer provides equipment which includes the complete control system (aside from various indicating contacts), the manufacturer’s wire numbering system is acceptable. Examples include switchgear assemblies, except where a separate rectifier control system is utilised.

Where a manufacturer provided wire number connects to a contact of another device, it should retain its manufacturer provided number. Any additional wires should be named in accordance with section 9.2.

A wire shall not change number moving from one piece of equipment to another. The primary equipment’s wire number shall be retained and the wire number altered within the secondary equipment.

9.5 Cable Numbering Cables, shown on the Equipment Interconnections Diagram, shall be assigned a unique number within the substation.




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9.5.1 SCADA Cable Numbers Cables connected from equipment to the SCADA RTU shall be utilised in accordance with MESP 081000-01. Each cable shall be numbered according to its function and the RTU to which it is connected in accordance with the following format: SxxyZ where xx is the equipment as listed in Table 3, y is the function of that equipment listed in Table 4 and Z is a letter (A, B or C) representing the RTU.

Table 3: SCADA Wire Numbers - Equipment Equipment

(x) Meaning 00 Miscellaneous 01 Incomer 1 ACCB 02 Incomer 2 ACCB 03 Rail Feeder 1 ACCB 04 Rail Feeder 2 ACCB 05 Bus Tie ACCB 06 Battery Charger 07 AT LV CB 08 AT ACCB 09 Thyristor Drainage Unit 10 ST ACCB 11 Signal/Essential Services CB 1 12 Signal/Essential Services CB 2 13 Signal/Essential Services CB 3 14 Signal/Essential Services CB 4 15 Signal/Essential Services CB 5 16 Signal/Essential Services CB 6 17 18 R1 ACCB 19 R2 ACCB 20 Feeder 1 DCCB 21 Feeder 2 DCCB 22 Feeder 3 DCCB 23 Feeder 4 DCCB 24 Feeder 5 DCCB 25 Feeder 6 DCCB 26 Feeder 7 DCCB 27 Feeder 8 DCCB 28 Bus Tie DCCB

30-50 Other equipment 52 Essential Services UPS




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Table 4: SCADA Wire Numbers - Function Function

(y) Meaning 0 CB/Switch Control and Indication 1 Feeder Alive OR Under Voltage 2 Lock Out 3 Watchdog Indication 4 Earth Switch Indication 5 Arc Fault Detector Watchdog Indication 6 Earth Fault 1 7 Earth Fault 2 OR Surge 8 Trip circuit supervision 9 Protection & Control Supply

For example, the lockout indication for R1, connected to RTU A would utilise cable S182A.

Since multiple unit substations also include multiple RTUs, there are standard numbers provided only for the maximum expected number of items of each type for a single unit substation. That is, ST2 would be connected to RTU B, and thus the ACCB would use cable number S100B.

9.5.2 Non-SCADA Cable Numbers Control cables not connected to the SCADA RTU shall be assigned any two or three digit number not already used within the substation. All cables assigned a number should be shown on the Equipment Interconnections Diagram.

9.6 Labelling Each wire shall be labelled adjacent to each termination using a sleeved marker.

The label should contain only the wire number, or if part of a cable, both the cable number and wire number in the format xxx/yyy where xxx is the cable number and yyy the wire number (e.g. 187/K41 for wire K41 in cable 187). The same number format should be utilised on Equipment Interconnection Drawings.

ELECTRICAL SPECIFICATION SUBSTATION EQUIPMENT, DEVICE AND WIRE NAMING AND NUMBERING


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Appendix 1: MTM Device Numbers Device numbers are to be formed by combining a root number with a suffix if required.

The suffix X may be added to any device number to indicate an auxiliary relay for that device.

Where multiples of the same device occur within a circuit, they may be differentiated in one of two ways:

• A hyphen and a number may be added to the end of the device number (e.g. 52BF-1, 52BF-2, AFD-1, AFD-2 in a bus protection tripping circuit) o The number should match the panel number of the switchgear assembly if this is applicable for the equipment in question

• A hyphen and designation of the device (e.g. 52BF-R1, 52BF-AT1, AFD-R1, AFD-AT1 in a bus tripping circuit) o No slashes may be used in this designation (hence the removal of the 22/ in the above example).

Root Device Device Number Description Usage Notes Historically Used Device

Numbers

Multifunction Device (Expression of functions not to

standard)

11 Digital Protection Relay Use for any digital device with at least two functions. For DC protection relays, refer device 76

51C, 162C, 262C, 362C

11{xx} Where xx is another device number, that element of the multifunction device

Used for output contacts of digital devices, e.g. 11{50N/51N} for Earth Fault contact. Where the manufacturer has a name for the contact used, that is appended to the function, e.g. 11{50N/51N-RL2}

11{WD} Watchdog contact Where the manufacturer has a name for the contact used, that is appended to the function

11{TP} Combined trip output Where the manufacturer has a name for the contact used, that is appended, e.g. 11{TP-RL1}



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Numbers

Frequency Matching Device

15 UPS Load Bus Synchronisation Used to denote the input terminals to the UPS which allow synchronisation of the UPS to an external signal

15S Relay selecting synchronisation source More than one of this device would be used in a circuit, designated 15S-1, 15S-2 etc.

Communication Networking Device

16 Communication networking device to be numbered in accordance with Annex B or IEEE Std C37.2-2008

16ES Ethernet Switch

Temperature Control Device 23 Thermostat Used for control of device 125 23

Undervoltage relay 27 Undervoltage or supply/bus alive relay 27

27T Time delayed undervoltage relay 27T

Annunciator relay

30 Flag Relay Where a function is not described below, flag relays should be notated 30/1, 30/2 and so on.

30A AC Earth Leakage 30A

30B DC Earth Leakage 30B

30DC Rectifier DCCB initiated ACCB trip Indicates that the Rectifier DCCB has tripped automatically, causing lockout of the rectifier unit. 30DC

30J Undervoltage 30J

Position Switch 33 Microswitch Used for indicating closed/ open position of items without device numbers (refer also 52TOC)



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Numbers

Atmospheric Condition Monitor 45 Oxygen or SF6 detection relay

Machine / Transformer Thermal Overload Relay

49 Over temperature relay Temperature monitoring of transformers etc.

49C Critical over temperature relay Contact/device used to cause tripping of circuit breaker

49WD Temperature monitoring relay watchdog contact

49W Warning over temperature relay Contact/device used for indication only

Instantaneous Overcurrent Relay

50 Definite time Phase Overcurrent Relay 51, 51T, 176I

50B Definite time Bus Summation Relay 163

50BF Current Monitoring CB Fail

50N Neutral Overcurrent Relay Utilises residual current from star connected CTs 64

Time delay Overcurrent Relay

51 Inverse Time Phase Overcurrent Relay 51T, 51TH, 176

51B Inverse Time Bus Summation Relay 163

51N Inverse Time Neutral Overcurrent Relay Utilises residual current from star connected CTs

AC Circuit Breaker

52 AC Circuit Breaker Used for all HV ACCBs 52

52BF Circuit Breaker Failure Relay Detects failure of the CB to open when tripped.

52CC Closing Coil 52CC

52CS Control Switch Located on control panel, switch to open and close circuit breaker locally in normal operation. 52CS



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Numbers

52DOC Door Operated Contact Limit switch on ACCB compartment door

52DL Door locking coil Allows opening of the ACCB compartment door when coil energised

52DR Door release switch/pushbutton Allows opening of ACCB compartment door when pressed/actuated

52KI Key Interlock Electrical key interlocking. Typically used to ensure the circuit breaker trips if the key is removed to enable the earth switch to be closed

52KI

52LR Local/Remote Switch

Isolates all forms of remote control, including relays and remote control panels at the substation – the circuit breaker is only operable using device 52TS. Usage of this device in control circuits is applicable only where remote control panels exist within the substation, otherwise refer to device 230. Indications must also be isolated using this switch to ensure tripping is not accidental

52LR

52M Spring Rewind Motor 52M

52MX Spring Rewind Motor Contactor Used to control device 52M 52MX

52RL Racking mechanism locking coil Allows racking of the circuit breaker when energised

52S Spring Limit Switch Indicates that the operating spring is fully wound 52S, 52LS

52TC Trip Coil Trips the circuit breaker 52TC

52TCM Trip Circuit Monitoring Function of relay monitoring continuity of trip circuit



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Numbers

52TCS Trip Coil Supervision Relay Relay to check continuity of wiring to trip coil

52TI Trip In (Closing) Relay Relay to close the circuit breaker via spring or magnetic actuators, or contactor to supply closing coil.

52TI

52TO Trip Out (Opening) Relay Relay to trip the circuit breaker via spring or magnetic actuators, or contactor to supply trip coil. 52TO

52TOC Truck Operated Contacts (Racking position auxiliary contacts) Shown in CB connected position

52TS Test Switch Provides local control at the circuit breaker when 52LR is in the Local position. Used during maintenance.

52TS

52Z One shot / Single close relay Ensures single attempt to close per command 52Z

Short circuiting or earthing switch

57 Earthing Switch

57KI Key Interlock Key interlocking on earth switch or short circuit switch

57SC Short Circuiting Switch (DC Traction)



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Numbers

Ground Protective Relay

64 Frame Leakage relay Number formerly used for Earth Fault (refer 50N, 51N)

64/R Red Phase Earthed Relay Indicates one wire of unearthed signal power distribution is faulted. 64/R

64/W White Phase Earthed Relay Indicates one wire of unearthed signal power distribution is faulted. 64/W

64A DC Frame leakage relay 64A

Directional Overcurrent Relay 67 Directional Overcurrent Relay

DC Circuit Breaker

72 Traction DC Circuit Breaker 54, 154, 254

72CC Closing Coil

72CS Control Switch

72HC Holding Coil

72X Closing coil auxiliary contactor

72TOC Truck Operated Contacts (Racking position auxiliary contacts)

72Z One shot / Single close relay 194

DC Overcurrent Relay 76 DC Protection Relay

Used to include all DC protection functions. Multipurpose DC protection relay may be considered device 76.



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Numbers

Locking-out relay 86 Lockout Relay Manually reset latching relay which prevents closing of a circuit breaker after particular types of fault such as frame leakage.

86

Differential Protective Relay

87B Bus current differential relay

87L Line current differential relay

Line Switch (Disconnector / Isolator)

89 Rectifier DC Isolator

89B Bus Isolator

89BT Bus Tie Isolator

89L Line Isolator

Tripping relay or Trip-free relay

94 Intertrip setup

94A Rectifier DCCB/ACCB Intertrip Relay 94A

94B Rectifier ACCB/Section DCCBs Tripping Relay 94B

94MT Bus Master Trip Relay Used on AC buses to trip all ACCBs due to bus protection or circuit breaker failure 170

Cubicle Heater 123 Cubicle/Cabinet Heater 25,125

123CS Cubicle/Cabinet Heater Switch 26

Voltmeter 136 Voltmeter 36, 136

Voltage Transformer 141 Voltage Transformer

Measurement Shunt 157 Shunt



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Numbers

157R Rectifier Shunt

157SS Substation Shunt

Ammeter 158 Ammeter 58

Electrolysis drainage contactor isolating switch

159 59

Electrolysis drainage contactor 160 60

Indicating light switch

166 Indicating light switch 66, 166

166TS Lamp Test Switch/Button

Cubicle light switch 168 Cubicle/inspection light switch 68

168T Cubicle/inspection light timer

Fuse Failure 172 Fuse Failure Contacts Indicates when a fuse has operated 72

Current Transformer

193A Transformer/Rectifier/Feeder Protection CT

193B Bus Protection CT

193C Power Company Protection CT

193D Power Company Metering CT

Supervisory Interposing Relays 206 Supervisory ‘ON’ Interposing Relay –

400V CB Used for all 400V remotely controlled circuit breakers



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Numbers

206L 400V remotely controlled CB latching relay

207 Supervisory ‘OFF’ Interposing Relay – 400V CB

208 Supervisory ‘ON’ Interposing Relay – Electrolysis Mitigation

Used for control of Electrolysis TDU

209 Supervisory ‘OFF’ Interposing Relay – Electrolysis Mitigation

210 Supervisory ‘START’ Interposing Relay – Rectifier

Used for control of Rectifier units

211 Supervisory ‘STOP’ Interposing Relay – Rectifier

212 Supervisory ‘CLOSE’ Interposing Relay – Section/Feeder DCCB (Control voltage holding)

Used to remotely close DCCBs where the holding coil is supplied from the substation control voltage

212BL Supervisory ‘CLOSE’ Interposing Relay – Section/Feeder DCCB (Bus or Line holding)

Used to remotely close DCCBs where the holding coil is supplied from either the bus or line side of the DCCB

212BLX Latching auxiliary relay for 212BL, tripped by 213BL

212L Supervisory ‘CLOSE’ Interposing Relay – Section/Feeder DCCB (Line holding)

Used to remotely close DCCBs where the holding coil is supplied from the line side of the DCCB only



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Numbers

213 Supervisory ‘OPEN’ Interposing Relay – Section/Feeder DCCB (Control voltage holding)

Used to remotely open DCCBs where the holding coil is supplied from the substation control voltage

213BL Supervisory ‘OPEN’ Interposing Relay – Section/Feeder DCCB (Bus or Line holding)

Used to remotely open DCCBs where the holding coil is supplied from either the bus or line side of the DCCB

213L Supervisory ‘OPEN’ Interposing Relay – Section/Feeder DCCB (Line holding)

Used to remotely open DCCBs where the holding coil is supplied from the line side of the DCCB only

214 Supervisory ‘CLOSE’ Interposing Relay – Feeder ACCB

Used for control of feeder ACCBs

215 Supervisory ‘OPEN’ Interposing Relay – Feeder ACCB

216 Supervisory ‘CLOSE’ Interposing Relay – Signal/Essential Services CB Used for control of Signal or Essential Services

circuit breakers

217 Supervisory ‘OPEN’ Interposing Relay – Signal/Essential Services CB

218 Supervisory ‘CLOSE’ Interposing Relay – 230V CB

Used for all 230V remotely controlled circuit breakers

219 Supervisory ‘OPEN’ Interposing Relay – 230V CB

220 Supervisory ‘CLOSE’ Interposing Relay – Bus Tie ACCB Used for control of bus tie ACCBs



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Numbers

221 Supervisory ‘OPEN’ Interposing Relay – Bus Tie ACCB

Supervisory Isolating Switch 230 C&I Isolating Switch

Yellow two position switch with positions labelled “Normal” and “Isolated”. Isolates remote control and main indication of a device by interrupting the commons.

Substation Auxiliary Power Switches

275 Supervisory 230V Supply Switch Main Switch for substation RTU 230V supply

317 Rectifier AC Control Supply Switch Main Switch for Rectifier Control Supply from substation auxiliary transformer

328 Substation Auxiliary Power Changeover Switch

Three position device to connect substation auxiliary loads to auxiliary transformer, portable generator (white or blue-white phase only), or isolate supply

376 Section DCCB Control Supply Switch Switch controlling 50V supply to a DC Zone or DCCB

Arc Flash Detector

AFD Arc Flash Detector Detects arc flashes

AFDB Arc Flash Detector (Bus Compartment) Detects arc flashes within main busbar compartment

AFDC Arc Flash Detector (Cable Compartment) Detects arc flashes within cable termination compartment

AFDS Arc Flash Detector (Switchgear Compartment)

Detects arc flashes within circuit breaker compartment

Clock or Timing Source CLK Clock GPS clock used for modern line current differential

relays



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Appendix 2: Device and Wire Numbering Example – Rectifier Control Circuit



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Appendix 3: Historical Device Numbers The table below lists all the device numbers known to be previously used in substations on the MTM network. It is provided for reference, and to avoid new equipment conflicting with existing definitions.

Old Device

Number Device Description

Current Device Number

-66 Reset Switch for Lock-Out Relay

2 Rectifier AC Isolator

3 22kV 3 Phase Earthing Switch (3 gang) 57

4 Master Contactor

5 50V DC Isolating Switch

6 Excitation Contactor

6T Excitation Thermostat

6X Auxiliary Relay for Device 6

7 Rectifier Cubicle Heater 123

8 Rectifier Control Supply Isolator

9 Rectifier Cubicle Thermostat 23

11 “Bus Alive” Auxiliary Transformer for Device 27

11GB Grid Blocking Transformer

12 Insulating Transformer for Auxiliary Relays

13A Insulating Transformer – Ignition Excitation & Grid

13B Insulating Transformer – Tank thermostat

13C Insulating Transformer – Excitation Establishment Relay

14 Frequency Tripling Transformer

14X, 14Y, 14Z Flag Indicator & Interposing Relays for Device 45

15 Main Rectifier Transformer

15LO Main Rectifier Transformer, Low Oil Level

16 Excitation and Fan Supply Transformer

17 Fan Choke

18 Time Delay Closing Relay for Rectifier DCCB

18M Motor for Device 18





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Old Device



19 Primary Fuses for Auxiliary Transformer

20 Mercury Arc Rectifier Tank

21 ACCB Closing Coil Supply Transformer

22 ACCB Closing Coil Supply Rectifier

24 ACCB Cabinet Heater Thermostat 23

25 ACCB Cabinet Heater 123

25C ACCB Cabinet Heater Contactor

25T ACCB Cabinet Heater Thermostat 23

26 ACCB Cabinet Heater Switch 123CS

27 AC Under Voltage Relay 27

27T AC Under Voltage Time Delay Relay 27T

27TR Rectifier for AC Under Voltage Time Delay Relay

27X Auxiliary Relay for Device 27 27X

27/1 AC Under Voltage Timing Relay

27/2 Low Voltage Relay

29 Resonant Shunt Isolator

29A Auxiliary Transformer 22kV 3 gang isolator

29B Wave Filter

29BX Wave Filter Fuses Failure Indication Relay

30 Regulating Transformer for ACCB Cabinet Heater Thermostat

30/2 Indicating Relay – AC Earth Leakage

30A Flag Indicating Relay – AC Earth Leakage 30A

30A/D Flag Indicating Relay – AC Earth Leakage Down Line

30A/U Flag Indicating Relay – AC Earth Leakage Up Line

30B Flag Indicating Relay – DC Earth Leakage 30B

30C Flag Indicating Relay – Fan Overload

30D Flag Indicating Relay – Anode Fuse Trip Indicators OR Rectifier Air Flow Indicator

30E Flag Indicating Relay – Frequency Tripling Transformer Fuse

30F Flag Indicating Relay – First Diode Failure

30G Flag Indicating Relay – Second Diode Failure




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Old Device



30H Flag Indicating Relay – AC & DC Surges (Resonant Shunt)

30I Flag Indicating Relay – AC Overload (Instantaneous)

30J Flag Indicating Relay – Under Voltage 30J

30K Flag Indicating Relay – Thermal Overload

30L Flag Indicating Relay – Alternator Temperature Low Setting

30M Flag Indicating Relay – Alternator Temperature High Setting

30N Flag Indicating Relay – Motor Temperature Low Setting

30P Flag Indicating Relay – Motor Temperature High Setting

30R Flag Indicating Relay – Alternator Thermostats

30S Flag Indicating Relay – Transformer Low Oil Level

30T Flag Indicating Relay – Over Temperature

30TH Flag Indicating Relay – AC Overload

30/1 Indicating Relay – AC Overload

30/3 Indicating Relay – DC Frame Leakage 30B

30/4 Indicating Relay – Screen Leakage

30/5 Indicating Relay – Incomplete Sequence

30/6 Indicating Relay – Auxiliary Circuits

30/7 Indicating Relay – Excitation Failure

30/8 Indicating Relay – Under Voltage 30J

32 Voltmeter Selector Switch

36 Voltmeter 136?

40X Exciter Failure Alarm Relay (Or Excitation Auxiliary Relay)

40Y Auxiliary Relay for Device 40X

40Z Timing Relay for Device 40X

40ZX Contact Multiplier for Device 40Z

41 Frequency Changer

41AB Alternator Bearing Temperature Contact for Device 41

41AT Alternator Thermistor Relay for Device 41

41ER Excessive Run Up Flag Relay for Device 41

41MB Motor Bearing Temperature Controls for Device 41

41R Motor Starter Running Contactor for Device 41




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Old Device



41RT Excessive Run Up Timing Relay for Device 41

41S Motor Starter Star Point Contactor for Device 41

44 Frequency Changer Starting Relay

44Z One Shot Relay for Device 44

45 Wind Vane Relay – Rectifier Cooling Air

45T Wind Vane Timer Relay – Rectifier Cooling Air

46 Arc Back Indicator and Reverse Current Relay


46Y Arc Back Counting Relay

47 1500V Control Fuse

48 Starting Sequence Relay

49 Overheat Thermostat

49I Rectifier Fan Thermometer and Thermostat

49R Fan Control Resistor

49T Frequency Changer Starting Auto Transformer Thermostat

49TX Auxiliary Relay for Device 49T

49X Thermocouple for Device 49I

49X Thermostat Auxiliary Relay (for Device 49)

50 Thermostat Insulating Transformer (Tanks 1 & 2)

51 AC Overcurrent Relay – Rectifier – Instantaneous 50

51 Aux. Auxiliary Supply Overload Cut-Out

51BU AC Overcurrent Relay – Backup Protection 50

51C Combined AC O/C, Inverse Time and Earth Leakage Relay 11

51EX Excitations Supply Overcurrent Cut-Out

51F Fan Overcurrent Relay (Tanks 1 & 2) 50

51FS Ventilating Fan Overload Relay

51FX Auxiliary Relay for Device 51F

51GRID Grid Transformer Supply Overload Cut-Out

51IE AC Instantaneous Overload Element

51Ign. Ign & Grid Blocking Transformer Supply Overload Cut-Out

51IT AC Overcurrent Relay (Inverse Time) 51




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Old Device



51MT Rectifier Protection Matching Transformer

51T AC Overcurrent Time Delay Relay 51

51TH AC Overcurrent Relay (Thermal) 51

51TX AC Overload Timer Auxiliary Rleay (Flag Indicating)

52 Rectifier ACCB 52

52A Rectifier ACCB Anti-Pumping Relay OR Auxiliary Relay 52Z

52CC Rectifier ACCB Closing Coil 52CC

52CS Rectifier ACCB Control Switch 52CS

52H Rectifier ACCB Limit Switch on Truck Handle

52IS Rectifier ACCB Control Supply Isolating Switch

52LC Rectifier ACCB Latch Check

52LR Rectifier ACCB Local/Remote Switch 52LR

52LS Limit Switch for Rectifier ACCB Spring Rewind Motor 52S

52M Rectifier ACCB Spring Rewind Motor 52M

52MX Contactor for Rectifier ACCB Spring Rewind Motor 52MX

52RV Rectifier Relief Valve for Pump Unit

52S Rectifier ACCB Closing Spring Limit Switch 52S

52T Rectifier ACCB Time Delay Relay

52TC Rectifier ACCB Trip Coil 52TC

52TCX Rectifier ACCB Trip Coil Auxiliary Relay

52TI Rectifier ACCB Trip In Relay 52TI

52TL Rectifier ACCB Truck Limit Device 52TOC

52TO Rectifier ACCB Trip Out Relay 52TO

52TS Rectifier ACCB Test Switch 52TS

52TSI Rectifier ACCB Test Switch Isolator

52W Rectifier ACCB Motor Isolating Switch (When Winding Handle Inserted)

52X Rectifier ACCB Closing Coil Contactor

52Y Rectifier ACCB Rectifier Contactor

52YX Auxiliary Relay for Device 52Y

52Z Rectifier ACCB Single Close Relay




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Old Device



54 Rectifier DCCB 72

54A Rectifier DCCB Holding Coil Contactor 72X

54B Auxiliary Relay for Rectifier DCCB

54CC Rectifier DCCB Closing Coil 72CC

54CS Rectifier DCCB Control Switch 72CS

54HC Rectifier DCCB Holding Coil 72HC

54X Rectifier DCCB Closing Coil Contactor 72X

54Y Rectifier DCCB Auxiliary Contactor for Device 54X

54Z Rectifier DCCB Single Close Relay 72Z

54ZA Auxiliary Relay for Device 54Z

55 Rectifier DCCB Control Fuse (1500V)

57 Rectifier Unit Ammeter Shunt 157R?

58 Rectifier Unit Ammeter 158?

59 Electrolysis Drainage Contactor Isolating Switch 159

60 Electrolysis Drainage Contactor 160

61 Tripling Transformer Rectifier Fans Contactor

62BU Backup Protection Timing Relay

63/1, 63/2 Air Flow Monitor

63A Air Flow Relay – Fan No 1

63B Air Flow Relay – Fan No 2

63T Air Flow Failure Timer Relay

64 AC Earth Leakage Relay 50N

64A DC Earth Leakage Relay 64A

64AX Auxiliary Relay for Device 64A

64B DC Earth Leakage – Interposing Relay

64BU AC Earth Leakage Backup Protection Relay

64C Screen Leakage Relay 64

64D AC Earth Leakage Relay – Down Line

64R Resistance for Device 64

64S DC Earth Leakage Relay Shunt




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Old Device



64U AC Earth Leakage Relay – Up Line

65 Grid Resistors

65C Grid Capacitor

65GT Grid Transformer

65R Grid Resistors

65RI Grid Loading Resistors

66 Indicating Light Switch

67 Rectifier Control (HT) Cubicle Light Switch 168

68 Rectifier Control (LT) Cubicle Light Switch 168

68A Rectifier Thermostat Silicon Rectifier 23

68B Rectifier Thermostat

68TY Over Temperature Trip Relay

69 Excitation Interlock Relay

70 Excitation Transformer (Tanks 1 & 2)

70CH Excitation Chokes

70EX Excitation Transformer

70Ign. Ignition Transformer

71 Surge Fuse Isolating Transformer -

72 Contactor for Rectifier Heater

72 Surge Fuse Auxiliary Relay 172

73 Excitation Choke Coil

73FL Load – Resistor Contactor for Filter Circuit

75 Anode Chokes

76 Current Relay for Fan Failure Alarm

80G Arc Suppression Contactor

81 Isolating Switch (Thermal) for ACCB Motor Mechanism

83 Current Relay for Fan Failure Tripping Circuit

83I Isolating Transformer for Device 83

83RX Shunt Resistor for Device 83

83S Shunt for Device 83





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Old Device



85 Frequency Tripling Transformer Fuse Trip Indicator

86 Lock-Out Relay 86

86A Auxiliary Relay for Device 86

86X Supervisory Alarm Indication Relay

87 Anode Fuse Trip Indicator

87A First Diode Failure Relay

87AX First Diode Failure Auxiliary Relay

87B Second Diode Failure Relay

87BX Second Diode Failure Auxiliary Relay

87C Diode Failure Indication Ammeter

87P Diode Failure Indication Reset Push Button

87S Diode Failure Indication Switch

87XT Control Supply Time Delay Relay

88 Rectifier Fan Contactor

88F Fan Motor (Tanks 1 & 2)

88R Fan Motor Fixed Reactor

88S Fan Motor Full Speed Contactor

88T Fan Failure Time Delay Tripping Relay (with Flag)

88Y Rectifier Fan Motor Contactor Control Relay

89 Rectifier DC Isolator 89

90 AC Overload Relay

90L AC Leakage Relay

91 Insulating Transformer

92 1500V Bus Protection Relay

93A Current Transformer – Rectifier Protection 193A

93B Current Transformer – Bus or Feeder Protection 193A/193B

94 Rectifier ACCB Single Close Relay 52Z

94A AC & DCCBs Intertripping Relay 94A

94B Section DCCB Tripping Relay 94B

94C Intertrip Relay – Jolimont-Angliss Feeder

94D Intertrip Relay – HV & LV ACCB (Cremorne) 94




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Old Device



94F Intertrip Relay with Flag


95 Series Reactor

96 Grid Control Transformer

96P Phase Shifting Transformer

97 Resonant Shunt (Filter Equipment)

97FF Resonant Shunt Fuse Failure Switch

97R Discharge Resistor for Device 97

98 Anode Surge Arrestors (Tanks 1 & 2)

98A Anode Surge Diverter – Voltage Oscillation Suppression Type

99 Cathode Surge Arrestors (Tanks 1 & 2)

100 DC Surge Arrestor

101 Excitation Surge Arrestor

102 ACCB Feeder Bus Isolator

103 AC Feeder Line Isolator 89L

103BC Solenoid Brake for Power Operated Device 103

103CS Remote Control Switch for Power Operated Device 103

103M Operating Motor for Power Operated Device 103

103MX Closing Relay for Power Operated Device 103

103MY Opening Relay for Power Operated Device 103

103R Series Resistance for Power Operated Device 103BC

104B Feeder DCCB Master Contactor – Bus

104BH Feeder DCCB Master Contactor – Bus (1500V)

104BL Feeder DCCB Master Contactor – Line (1500V)

104L Feeder DCCB Master Contactor – Line

105 Bus Tie ACCB Isolator

108 Feeder ACCB Control Supply Switch

109 Signal Supply 2200V CB or Vacuum Contactor (From Transformer or Frequency Changer)

52

109CC Closing Coil for Device 109 52CC

109CCIS Isolating Switch for Device 109




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Old Device



109CR Circuit Reset Timing Relay for Device 109

109CS Control Switch for Device 109 52CS

109RC Diverter Resistor – 1000 Ohm Closing Coil

109RT Diverter Resistor – 800 Ohm Trip Coil

109SR Synchronising Auxiliary Relay for Device 109

109ST Synchronising Timing Relay for Device 109

109TC Trip Coil for Device 109 52TC

109TI Closing Relay for Device 109 52TI

109TO Tripping Relay for Device 109 52TO

109X Closing Coil Contactor for Device 109

109Z Anti-Pumping Relay for Device 109 52Z

110 Signal Feeder CB (2200V) (From Distribution Bus) 52

110CC Signal Feeder CB (2200V) Closing Coil 52CC

110TC Signal Feeder CB (2200V) Trip Coil 52TC

111 Signal Bus CB (2200V) (Supply from Distribution Bus) 52

112 Signal Bus Tie Isolator (2200V)

113 2200V Earth Leakage Indicator 64/R, 64/W

113R 2200V Earth Leakage Indicator Resistor

114 2200V Signal Supply Voltmeter 136

115 Signal Transformer

117 Isolator for Resonant Shunts

118 Signal Transformer Switch Fuse

120 Series Reactor – Air Cored

121 Surge Diverter

123 AC Bus Link

124 AC Bus Section Isolator

124CS AC Bus Section Isolator Control Switch

124MX Auxiliary Close Relay for Device 124

124MY Auxiliary Open Relay for Device 124

125 Feeder ACCB Heater 123




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Old Device



126 Feeder ACCB Heater Switch 123CS

127 Feeder AC Line Alive Indicating Relay 27

136 AC Feeder Voltmeter 136

140 2200/110V Bus Alive & Phase Earth Indication VT 141

141 AC Feeder VT 141

142 2200/110V Line Earthed & Line Alive Indicating Transformer

149 Substation Fan Thermostat 23

149X Auxiliary Relay for Low-Setting Thermostat

152 Feeder ACCB 52

152CC Feeder ACCB Closing Coil 52CC

152CCR Feeder ACCB Closing Coil Disc……?

152CS Feeder ACCB Local Control Switch 52CS

152H Feeder ACCB Limit Switch on Siemens (Cremorne)

152M Feeder ACCB Spring Rewind Motor 52M

152MX Feeder ACCB Rewind Motor Control/contactor?

152N Neutral-Earth Relay for 22/6.6kV Transformers 64

152S Feeder ACCB Closing Spring Limit Switch 52S

152T Feeder ACCB Time Delay Relay

152TC Feeder ACCB Trip Coil 52TC

152TI Feeder ACCB Trip-in Closing Coil 52TI

152TO Feeder ACCB Trip-out Closing Coil 52TO

152TS Feeder ACCB Test Switch 52TS

152TSI Feeder ACCB Test Switch Isolator

152W Feeder ACCB Limit Switch – Opens when win……………..Siemens

152X Feeder ACCB Closing Coil R….

153 Bus Tie ACCB 52

153CC Bus Tie ACCB Closing Coil 52CC

153CCR Bus Tie ACCB Closing Coil ?????

153CS Bus Tie ACCB Local Control Switch 52CS

153H Bus Tie ACCB Limit Switch on Truck Handle………..Siemens (Cremorne)




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Old Device



153M Bus Tie ACCB Spring Rewind Motor 52M

153S Bus Tie ACCB Closing Spring 52S

153T 11kV Bus Tie / 415V ACCB Intertripping Relay…… Flinders St 94

153TC Bus Tie ACCB Trip Coil 52TC

153TI Bus Tie ACCB Trip-In Closing Coil 52TI

153W Bus Tie ACCB Limit Switch – opens when Wind………Siemens

153X Bus Tie ACCB Closing Coil ??????

153TO Bus Tie ACCB Trip-out Closing Coil 52TO

154 Section DCCB 72

154CC Section DCCB Closing Coil 72CC

154CS Section DCCB Local Control Switch 72CS

154HC Feeder DCCB Holding Coil 72HC

154X Feeder DCCB Closing Coil Contactor 72X

155 Feeder DCCB Zone Control Supply Isolator

156 DC Zone Isolators

157 Rectifier DC Bus Section Isolator

158 AC Feeder Ammeter 158?

159 DC Feeder Bus Isolator 89B

160 DC Feeder Line Isolator 89L

161 AC Feeder Translay Relay 87L

161A AC Feeder Translay Quadrature Transformer

162C AC Feeder Combined Digital Protection Relay 11

162 AC Feeder O.C.I.T.E.R. (3 Relays in 1 Case)

162D Directional Relay 67

162DX Directional Protection Auxiliary Relay

162EL AC Feeder O.C.I.T Relay (Earth Leakage) 51N

162ELA AC Feeder Earth Leakage Relay Shorting Contacts

162ELT AC Feeder O.C.I.T. Relay Earth Leakage Timing Element

162F Overcurrent & Earth Leakage Auxiliary Flag Relay

162HL Feeder Protection High Setting – Lower Setting Changeover Relay (NME)




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Old Device



162IEL Instantaneous Earth Leakage Relay 50N

162IELX Auxiliary Relay for Device 162IEL

162OC AC Feeder O.C.I.T Relay (Overcurrent) 51

162OC/H AC Feeder O.C.I.T. Relay (Overcurrent) High Setting (NME)

162OC/L AC Feeder O.C.I.T. Relay (Overcurrent) Low Setting (NME)

162OCA AC Feeder Overcurrent Relay Shorting Contacts

162X Overcurrent & Earth Leakage Auxiliary Relay

163 AC Bus Protection Overload Relay (Summation) 163

163A AC Bus Overload Relay Shorting Contacts

163R Time Delay Relay for Rectifier Protection O/C Relay

163T Time Delay Relay for Bus Protection O/C Relay

163X Auxiliary relay for Device 163

164 AC Frame Leakage Relay 64

164A AC Frame Leakage Relay Shorting Contacts

164C AC Frame Leakage CT

165 AC Bus Protection Differential Relay 87B

165A AC Bus Residual Differential Protection Relay Shorting Contacts

165EL/1 Earth Leakage Differential Relay on Bus 1

165EL/2 Earth Leakage Differential Relay on Bus 2


166 Feeder ACCB Indicating Lamp Switch 166

167 Feeder ACCB Cubicle Light Switch 168

168 Bus tie Isolator Indicating Light Key

169 AC Bus Section Isolator Lockout Contact

170 AC Protection Tripping Relay

171 Control Circuit Isolator – AC Bus Tie Isolator

172 Motor Circuit Isolator – AC Bus Tie Isolator

175 Signal CB Control Supply

176IX 2200V Feeder ACCB Instantaneous Overload Relay (NKT)

176OC 2200V Feeder ACCB Overload Relay (O.C.I.T.) (NKT)

177IOC 2200V Transformer Instantaneous Overload Relay (NKT)




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Old Device



178 2200V Feeder ACCB Blocking Relay (NKT)

183 Protection VT – Feeder ACCB 141

184 Protection VT (Earth Leakage) – Feeder ACCB

188 Substation Fan Motor Contactor

188A Substation Fan Failure Indication Relay

188B Auxiliary Relay for Device 188

188BH Substation Fan Control Auxiliary Relay (High Setting)

188BL Substation Fan Control Auxiliary Relay (Low Setting)

188F Substation Fan Motor

188PS Substation Fan Power Supply Switch

188S Substation Fan Control Supply Switch

193A Feeder Current Transformer (Feeder Protection) 193A

193B Feeder Current Transformer (Bus Protection) 193B

193C Feeder Current Transformer (SEC Protection) 193C

193D Feeder Current Transformer (SEC Metering) 193D

194 Feeder DCCB Single Closing Relay 72Z

194T Feeder DCCB Timing Relay for Device 194

194X Feeder DCCB Auxiliary Relay for Device 194

195 Feeder ACCB Plug Interlock Contact

203 50V DC Supply Check Relay (FSS,SSS)

206 Auxiliary Transformer 415V CB ‘Close’ Interposing Relay 206

207 Auxiliary Transformer 415V CB ‘Open’ Interposing Relay 207

208 Supervisory ‘ON’ Interposing Relay (Electrolysis) 208

209 Supervisory ‘OFF’ Interposing Relay (Electrolysis) 209

210 Supervisory ‘START’ Interposing Relay (Rectifier) 210

211 Supervisory ‘STOP’ Interposing Relay (Rectifier) 211

212 Feeder DCCB ‘CLOSE’ Interposing Relay 212

212B Feeder DCCB ‘CLOSE’ Interposing Relay – Bus 212B

212BL Feeder DCCB ‘CLOSE’ Interposing Relay – Bus or Line 212BL

212BLX Auxiliary Contactor for Device 212BL 212BLX

212L Feeder DCCB ‘CLOSE’ Interposing Relay - Line 212L




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Old Device



213 Feeder DCCB ‘OPEN’ Interposing Relay 213

213B Feeder DCCB ‘OPEN’ Interposing Relay – Bus 213B

213BL Feeder DCCB ‘OPEN’ Interposing Relay – Bus or Line 213BL

213L Feeder DCCB ‘OPEN’ Interposing Relay – Line 213L

214 Feeder ACCB ‘CLOSE’ Interposing Relay 214

215 Feeder ACCB ‘OPEN’ Interposing Relay 215

216 Signal CB ‘CLOSE’ Interposing Relay 216

217 Signal CB ‘OPEN’ Interposing Relay 217

218 Auxiliary Transformer 230V CB ‘CLOSE’ Interposing Relay 218

219 Auxiliary Transformer 230V CB ‘OPEN’ Interposing Relay 219

220 AC Bus Section Isolator or Bus Tie ACCB ‘CLOSE’ Interposing Relay 220

221 AC Bus Section Isolator or Bus Tie ACCB ‘OPEN’ Interposing Relay 221

223 2200V Supply Alive Indication Interposing Relay

224 20kV Changeover Relay for ST Alive Indication

225 ST1 20kV VT Isolator Switch

226 ST2 20kV VT Isolator Switch

227 Isolator Switch for Battery Charger

228 110V Rectifier ACCB Trip & Close Circuit Supply Check Relay (VPK)

229 Heater Supply Isolator Switch

230 Supervisory Isolator Switch 230

231 Thyristor Fuse Failure Relay

232 Electrolysis Feeder Discontinuity Relay

235 2200V Bus Alive Indication Relay 27

236 SEC Supply Alive Indication Relay 27

252 HV ACCB for Signal Transformer and Frequency Changer 52

252A Auxiliary Relay for Device 252 52X

252BU Backup Protection Relay for Device 252

252CS Control Switch for Device 252 52CS

252LR Local Remote Switch for Device 252 52LR




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Old Device



252TCX Trip Coil Control Relay for Device 252

252TOX Trip Out Control Relay for Device 252

253 2200V Bus Tie CB or Vacuum Contactor 52

253CC 2200V Bus Tie CB or Vacuum Contactor Closing Coil 52CC

253CS 2200V Bus Tie CB or Vacuum Contactor Control Switch 52CS

253RC Diverter Resistor 1000 Ohm Closing Coil

253RT Diverter Resistor 800 Ohm Trip Coil

253TC 2200V Bus Tie CB or Vacuum Contactor Trip Coil 52TC

253X 2200V Bus Tie CB or Vacuum Contactor Closing Coil Contactor

253Z 2200V Bus Tie CB or Vacuum Contactor Anti-Pumping Relay

254 Subsectioning Switch

254CC Subsection Switch Closing Coil

254CS Subsection Switch Local Control Switch

254RCS Subsection Switch Remote Control Switch

254T Subsection Switch Closing Coil Timer

254TC Subsection Switch Trip Coil

254X Trip Coil Contactor

262 Signal Transformer O/C Relay 51

262C Signal Transformer Digital Protection Relay 11

270 Sump Pump

275 Supervisory Supply Switch 275

280 Supervisory Cable Low Pressure Alarm Relay

291 Supervisory Cable Low Pressure Gas Relay

302 Auxiliary Supply Bus Isolator

305 Cubicle Light Supply Switch (also 373)

306 Emergency Light Supply Switch or Relay

308 Auxiliary Supply Isolator for Rectifier Control

311 Auxiliary Transformer 230V CB Closing Supply Switch

315 Auxiliary Transformer

316 Rectifier Control Supply Step-up Transformer

317 Rectifier Control Supply Switch 317




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Old Device



318 Auxiliary Transformer 22kV Switch Fuse

319 Signal Transformer 22kV Switch Fuse

323 Vent Fan Contactor

324 Auxiliary Supply Bus Section Isolator

326 110V Low Battery Voltage Relay

326A Low Battery Voltage Auxiliary Relay

326R 110V Low Battery Voltage Relay Resistor

327 230V Bus – Alive Indication Relay

328 Power & Light Supply Main Switch 328

329 Power & Light Supply Switch

330 Power & Light Supply Switch

331 230V, 3 Phase, Supply Switch

332 415V, 3 Phase, Supply Switch

333 110V Battery Charger Supply Switch

334 50V Battery Charger Supply Switch

335 Burnley Substation Air Compressor Main Switch (Thermal Overload)

336 Air Compressor Control Unit

337 Air Compressor Control Unit Circuit Breaker

338 Air Compressor Motor

339 Air Compressor Relief Valve

340 Air Compressor Counter

341 Air Compressor Pressure Switch

342 Air Compressor Changeover Switch

343 22kV ACCB Closing Coil Supply Switch

344 Air Compressor Supervisory Reset Push Button

345 Air Compressor Trip Coil Release Switch

346 Air Compressor LP & HP Tripping Relay

347 Air Compressor Control Supply Automatic Changeover Relay

349 Ventilation Fan Thermostats

350 Ventilation Fan Control Switch




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Old Device



352 Auxiliary Transformer ACCB 52

352A Auxiliary Transformer ACCB Anti-pumping Relay 52Z

354 Auxiliary Supply 230V Contactor

354CS Device 354 Control Switch

355 Auxiliary Supply 230V Circuit Breaker

355CS Device 355 Control Switch

356 110V Supplies Earth Leakage Test Switch

357 110V Battery Charger Output Changeover Switch

358 Substation Ammeter Shunt

359 110V Standby Battery Charger Plug (230V AC Supply)

360 110V Standby Battery Charger Plug (110V DC Supply)

362C Auxiliary Transformer 22kV Digital Protection Relay 11

362 Auxiliary Transformer 22kV ACCB O.C.I.T.E.R 50/51/50N

371 Auxiliary Transformer 230V CB Control Supply Switch

373 Cubicle Light Supply Switch 168

375 Rectifier DCCB Control Supply Switch

376 Section DCCB Zone Control Supply Switch

377 Rectifier & Feeder DCCB Closing Coil Supply Switch

378 Rectifier & Feeder DCCB Closing Coil Supply Switch

379 Rectifier & Feeder ACCB Control Supply Switch

380 Rectifier & Feeder ACCB Control Supply Switch

390 Commutation Surge Suppressor

401 Thyristor Unit AC Supply Contactor

402 Thyristor Unit Contactor Control Switch

410 50V Rectifier Control Switch

411 Humidity Indication Device

422 2200V Overvoltage Relay

425 Synchrotact Relay

425C Synchrotact Synchronising Contactor

425SS Selector Switch for Device 425

426 2200V 90% Voltage Relay




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Old Device



427 2200V Under Voltage Relay

429 415V Supply Circuit Breaker

430 415V Supply Circuit Breaker Test Switch

451 415V AC Open Circuit Relay for Frequency Changers

454 415V Auxiliary Supply ACCB

454A 415V Auxiliary Supply Auxiliary Relay

454CS 415V Auxiliary Supply Control Switch

454M 415V Auxiliary Supply Closing Motor

454T 415V Auxiliary Supply Control Supply Transformer

MESP 000003-06 SUBSTATION EQUIPMENT, DEVICE … · MESP 000003-06 SUBSTATION EQUIPMENT, DEVICE AND...

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Transcript of MESP 000003-06 SUBSTATION EQUIPMENT, DEVICE … · MESP 000003-06 SUBSTATION EQUIPMENT, DEVICE AND...