Application Guide 2003 4

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APPLICATION GUIDE

This application guide is intended to illustrate the extensive range of application and schemes to which our products and systems can be applied. For ease of use typical schemes have been provided to cover the standard voltage ranges.

Our company specialises in customised applications and we have a dedicated team of senior applications engineers who can provide solutions for any voltage in the power system network.

The voltage levels indicated in this guide are as

follows:-i) LV typically less than 1kV

ii) MV typically 1kV to 132kV – Distribution iii) HV typically 132kV and above – Transmission

Busbar Protection

Some general considerations to be taken into account when establishing the optimum protection

• Busbar configuration • Cost

• Protection redundancy requirements

• Phase/earth fault scheme or phase/earth and phase/phase scheme • Speed and sensitivity

• Existing c.t. characteristic for retrofit projects

Overcurrent protection - blocking principle, distribution networks, single source.

ANSI No Function Reyrolle Relay

51 Three-phase time delayed overcurrent Argus 1 – (3P+E)

51N Time delayed earth fault AG1-(411-412)

50CBF Circuit breaker fail S1 Blocking signal status input

51 Three-phase time delay overcurrent Argus 1 – (3P+E)

51N Time delay earth fault AG1-(411-412))

50CBF Circuit breaker fail

BS Blocking signal output (e.g low set o/c e.f)

APPLICA

TION

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Directional overcurrent protection - Blocking principle, distribution networks, parallel source

67 Bi-directional three-phase time delayed overcurrent Argus 2 – (3P+E)

67N Bi-directional time delayed earth fault AG2-(411-412)

50CBF Circuit breaker fail SI Blocking signal status input

67 Directional three-phase time delayed overcurrent Argus 2 – (3P+E)

67N Directional time delayed earth fault AG2-(411-412)

50CBF Circuit breaker fail

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High impedance busbar differential protection - Single busbar, two zone, phase/phase & phase/earth fault scheme, with overall check zone

87H-1 Differential using circulating current principle with CT supervision – main zone 1

87H-2 Differential using circulating current principle with CT supervision – main zone 2 DAD 87H-CH Differential using circulating current principle with CT supervision – check zone

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High impedance busbar differential protection - Mesh corner, duplicate phase fault scheme with C.T supervision

ANSI No Function Reyrolle Relay

87H Differential using circulating current principle with DAD C.T supervision - Main 1

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ANSI Case Availability

Function Description Ref Modular Vedette Other

Busbar protection and circuit breaker fail schemes Differential

Electronic high speed, high/medium impedance circulating current principle with excellent harmonic rejection, includes current

transformer supervision. 87 DAD

CT Shorting High speed multi-contact relay, hand reset contacts

86 TR221

Leakage to frame Attracted armature relay with a fixed current setting. Normally connected to a C.T. placed between the switchgear frame and earth. A check system is possible

64N MR111

Busbar prot'n for distribution Blocking scheme using the feeder overcurrent and earth fault protection.

87 Argus

Interlocked overcurrent Relay for discriminative clearance of blind spot faults, actioned by a main protection contact (DTL)

51 2DAB

51 Argus

Circuit Breaker fail Electronic relay with phase segregated inputs and outputs. Internal interface system permits factory set output options of up to 9 output contacts. Features a low overshoot and a particularly wide range of settings. Integrated timer.

50 2DAB

Intergrated in multi-function relay Argus

D.C. Supervision

Low burden attracted armature relays 27

Self reset reverse flag XR152

As above with hand reset flag XR153

Trip supply supervision incorporated in Argus multi function relay Argus Trip High speed multi-contact hand reset trip relay

86 TR221

Time delay Range of electronic high accuracy time delay relays

2 DDB

Low impedance Numerical protection system providing percentage differential protection, differential protection and undervoltage monitoring. High speed operation. Fully self supervised.

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Feeder Protection

Some general considerations to be taken into account when establishing the optimum protection:–

• Method of system earthing • Type of load

• System requirements (eg fault clearance time) • Existing protection

• Protection redundancy requirements

• Cost of protection relative to degree of security required Cable feeders, radial or ring feed, high security.

51N Time delayed earth fault AG1 -(401-402)

87F Pilot wire differential Solkor Rf

Note: Pilotwire supervision, intertripping and guard relays can be added to Solkor-Rf scheme as required.

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Cable feeder, ring main

51 Three-phase time delay overcurrent Argus 1 – (3P+E)

67 Bi-Directional three-phase time delayed overcurrent Argus 2 – (3P+E)

67N Bi-Directional time delayed earth fault AG2-(411-430)

Note: Argus 2 relays have independent settings for forward and reverse directions. Where distances permit blocking connections can be added.

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Overhead line feeder with auto-reclosing circuit breaker

51 Three-phase time delayed & instantaneous overcurrent

Argus 4 – (3P+E) 51N Time delayed & instantaneous earth fault

AG4-(401-404) 79 Auto reclose

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Overhead line feeder with single main protection, high security

87CD Current differential Solkor M

SK2-(101-203)

Communication Channel-CCITT M1020

Standard 4 wire voice frequency

(Option of digital interface)

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Overhead line feeder with duplicate main protection

51N Time delayed earth fault AG1 – (401-402)

87CD Phase comparison current differential Microphase-FM

MF1 - (101-203)

21 Distance protection scheme Ohmega

79 Autoreclose

25 Check synchronising Argus 7

AG7-(101-102)

Communication Channel-CCITT M1020

Standard 4 wire voice frequency

(Option of digital interface)

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Feeder protection

Distance Numeric full scheme distance protection relay with selectable functions for complete flexibility. Upto 4 zones of protection with different operating times for distribution and transmission voltage applications. Additional features include logic programming, waveform and event recording and remote communications.

21 Ohmega range

Numeric Current Differential Multi-microprocessor relays providing unit protection using software derived positive and negative phase sequence components. V.T. not required. Manual or automatic delay compensation, continuous supervision of communications link. Integral fault data storage.

87 Microphase-FM

Multi-microprocessor relays providing unit protection using the Solkor principle derived in software. V.T. not required. Manual or automatic delay compensation, continuous supervision of communications link. Integral fault data storage.

87 Solkor-M

Numeric phase segregated differential protection for use with fibre optic or RS485 communication. Integrated supervision, intertripping and guard functions

87 Solkor-N

Overcurrent and/or earth fault

Electro-mechanical relays: Instantaneous fixed setting 50/51 MR111

Instantaneous variable setting MR112

Numeric with selected DTL, NI, VI, EI, LTEF characteristics. Two integral highset functions, IDMT/DTL instantaneous or delayed reset. Waveform storage of last 5 faults and time-tagged storage of 500 events. Ammeter display can be set to read primary amps. Integral condition based circuit breaker maintenance data.

50/51/87 Delta 1 Ditto with bi-directional control of all measuring elements

67/67N/87 Delta 2

Integrated protection and auto reclose, three or four pole, with individual auto reclose sequence for the OC, EF and EF / SEF functions. Optional integral directional control available.

50/51/87/67 Argus 4 / 6 Delta Restricted earth fault

Electro-mechanical high impedance circulating current principle, setting increases

for harmonics and has a integral metrosil. 87 5B3

Numeric, with high harmonic rejection ratio. 87 Argus 1

Delta Sensitive earth fault Numeric with excellent harmonic rejection and integral time delay.

50 Argus 1

Delta

Auto reclose Numeric for three pole autoreclose schemes. Multi-shot, integrated with IDMT and EF / SEF protection

79 Argus 4

Delta Check synchronising Numeric with independent check & system sync settings

25 Argus 7

Overload Numeric thermal overload

49 Rho 3

Delta

Pilot wire Circulating current principle, high speed operation, 2000 ohms pilot loop. Up to 5kV or 15kV with isolating transformers, pilot insulation levels.

87 Solkor-R / Rf Pilot wire supervision Pilot supervision for Solkor-R (5kV) and Solkor-Rf pilot wire protection schemes

part of 85 Solkor supervision Guard relay Instantaneous OC & EF

B69 Pilot wire intertrip

For use with Solkor-R installations where sufficient fault current will be present during the

intertrip operation. 50 5kV 5kV

AR101T AR101T

A.C. injection intertripping schemes to use SolkorR or SolkorRf pilot wire link. Slightly different equipment is required for each -state if Solkor-R or Rf. Not suitable for use with pilot supervision

TEC Inverter ANSI Case Availability

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Intertripping 85 TEC Intertrip send relay for pulse or continuous intertrip 5kV and 15 kV pilot insulation models

Surgeproof intertrip receive relay for up to 500 V rms across pilot cores GF3

Surgeproof intertrip relay for up to 5kV rms across pilot cores BD BD Pilot supervision relay for intertrip pilots with 15kV insulation (uses the send

unit of Solkor supervision) 15kV CF2

Intertrip send relay complying with ESI 48-4 Class ESI XR101 Intertrip receive relay complying with ES141-15 Part 5 (1988) XR102 Interposing control For use over pilot wires of up to 200 ohms, and not susceptible to certain ac voltages

A) Without flag indication XR105 XR105

B) With flag indication XR106 XR106

Neutral displacement Numeric relay with variable settings and time delay 59

Argus 8

Undervoltage 27

Electro-mechanical: Fixed setting VR121/22

Adjustable setting VR123

Numeric Argus 8

Overvoltage 59

Electronic-mechanical: Fixed setting VR115/16

Adjustable setting VR117

Numeric Argus 8

Voltage monitoring

Electro mechanical suitable for Mesh Corner to NGC Specification B68 Fault detection indication Earth fault passage indication for cable circuits.

FIND

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Motor Protection

Some general considerations to be taken into account when establishing the optimum

protection:-• Importance of the drive circuit (i.e. duty cycle) • Cost (implications of downtime, motor rewind, etc) • Operating environment

• Plant requirements • Motor rating and cost

LV motor circuit controlled by a fuse-switch or contactor – motor rating typically up to 75kW

* Core balance c.t. recommended

46 Negative phase sequence overcurrent

Rho 0 49 Three-phase thermal overload

RH0 – (101-108) 51N Time delayed earth fault LV

Motor controlled by a fuse-switch or contactor – ratings typically above 75kW

49 Three-phase thermal overload Rho 0

48 Locked rotor / stalling RH0 – (101-108)

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Motor controlled by a circuit breaker – ratings typically above 75kW to 1MW asynchronous motor, direct on line start

49 Three-phase thermal overload Rho 3

48 Locked rotor / stalling RH3 – (101 –112)

50 Three-phase instantaneous overcurrent 50N Instantaneous earth fault

Motor / transformer circuit controlled by a circuit breaker, typically 500kW

46 Negative phase sequence overcurrent 49 Three-phase thermal overload

48 Locked rotor / stalling Rho 3

50 Three-phase instantaneous overcurrent RH3 – (101-112)

37 Undercurrent

30 Thermal pre-alarm 50N Instantaneous earth fault

51N Time delayed earth fault Argus 1 – (1P EF)

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Motor controlled by a circuit breaker – ratings typically above 1MW

46 Negative phase sequence overcurrent Rho 3

49 Three-phase thermal overload RH3 – (101-112)

48 Locked rotor / stalling

50 Three-phase instantaneous overcurrent 37 Undercurrent

30 Thermal pre-alarm 50N Instantaneous earth fault

87M Three-phase differential 3 X Argus 1 – (1P SEF) AG1 – (103-104)#

# Employed as 3-phase high impedance differential

Motor Protection

LV motor protection Integrated numeric LV motor protection with a large number of functions including thermal overload, earth fault, short circuit and under/over voltage

44 Rho 0 46 48 49 50 27/59

HV motor protection Integrated numeric HV motor protection with a large number of functions including thermal overload, earth fault, short circuit and stall protection

46 Rho 3 66

48 49 50 Over/undervoltage Numeric with programmable time delay

27/59 Argus 8 Differential High impedance principle

87 5B3

Argus 1 ANSI Case Availability

Function Description Ref Modular Vedette Other

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Generator Protection

Some general considerations to be taken into account when establishing the optimum protection:–

• Mode of operation (i.e single or parallel running)

• Type of duty (i.e base load, emergency supply, standby duty) • Direct connected to a substation busbar or via generator transformer • Method of system earthing

• Protection redundancy required • Generator rating and cost

Direct connected generator, low impedance earthing, rating typically 2MW. Base load generation in parallel with grid network.

27UV Undervoltage

81 Over / under frequency Gamma 4

59 Overvoltage GM4 - (401-412)

32R Reverse power

50N Instantaneous earth fault

51V Three-phase time delayed overcurrent with voltage restraint 81R Rate of change of frequency

60FL Voltage transformer supervision

51N Time delayed earth fault (neutral end) Argus 1 – (3P+E)

51 Three-phase time delayed overcurrent (line end) AG1 - (401-402) 51N Time delayed earth fault (line end)

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Direct connected generator, high impedance earthing, rating typically 15MW. Base load generation in parallel with grid network.

27UV Undervoltage 81 Over / under frequency 59 Overvoltage 40 Loss of field

46 Negative phase sequence overcurrent Gamma 4

87G Generator biased differential GM4-(201-212)

32R Reverse power

59N Stator earth fault (95% winding protected)

51V Three-phase time delayed overcurrent with voltage restraint 60FL Voltage transformer supervision

51 Three-phase time delayed overcurrent (line end) Argus 1 - 3P+E 51N Time delayed earth fault (line end) AG1-(401-402)

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Isolated generator transformer, high impedance earthing, rating typically 50MW and above. Base load generation in parallel with grid network

27UV Undervoltage

81 Over /underfrequency

59 Overvoltage

50/27 Inadvertent energising Gamma 4

50CBF Circuit breaker failure GM4 – (401-412)

24 Overexcitation V /Hz

46 Negative phase sequence overcurrent 40 Loss of field

87G Generator biased differential

32R Reverse power

21 Phase distance

60FL Voltage transformer supervision 59N Stator earth (95% of winding protected) 27TN Startor earth fault (100% of winding protected)

51 Three-phase time delayed overcurrent (line end) Argus 1 – (3P + E)

51N Time delay earth fault (line end) AG1 – (401-102)

87T Transformer biased differential

64REF Restricted earth fault Duobias M

WTA, WTT Winding temperature alarm and trip status inputs 2 Wdg, 50Hz PT Pressure relief device trip status input

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Generator Protection

Numeric generator Suitable for protection of a variety of machines down to 1MW this relay can be purchased as minimum protection base system and built up with the addition of function modules into a more protection functionally comprehensive protection package. Comprehensive generator protection system suitable for use on all machine sizes. Dual CT inputs in a standard 19” rack mounting design.

Gamma 4 Range Differential ( unit or transformer )

High impedance principle with voltage setting for generator or generator

transformer 87 5B3

Numeric current differential, features include data storage 87 Argus Duobias-M

Overcurrent & earth fault Numeric multi-function, multi-characteristic, including ammeter display, waveform storage, event recording, comms link etc.

50/51 Argus 1 Delta Restricted earth fault High impedance principle

50 5B3

Argus 1 Delta Sensitive earth fault Numeric with wide setting ranges, excellent harmonic rejection and integral time delay

50 Argus 1 Delta Over/undervoltage Numeric with programmable time delay

27 / 59 Argus 8 Neutral Displacement Numeric with 2 settings

Argus 8 Over/underfrequency Numeric with programmable time delay

81 Argus 8 ANSI Case Availability

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Transformer Protection

Some general considerations to be taken into account when establishing the optimum protection: • Mode of operation (i.e parallel or single operation)

• Method of system earthing • Transformer rating and cost

• Importance of high-speed fault clearance

• HV and LV switching devices (i.e c.b, fuse switch, or isolator)

Transformer controlled by a fuse-switch or contactor, eg ratings up to 1MVA Transformer type – dry

51N Time delayed earth fault HV AG1-(401-402)

51N Time delayed earth fault LV Argus 1 – (1P+EF) AG-(101-102)

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Transformer controlled by a circuit breaker, typically 800kVA to 2MVA. Transformer type – oil filled, sealed (with pressure sensor) or with conservator.

51 Three-phase time delayed overcurrent Argus 1 – (3P+E) 50 Three-phase instantaneous high-set overcurrent

51N Time delayed earth fault HV AG1-(411-412)

WTA, WTT Winding temperature alarm and trip status inputs PT Pressure relief device trip status input

64REF Restricted earth fault LV Argus 1 –

51N Time delayed earth fault LV (2P+E+REF)

AG1-(403-404)

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Two winding, transformer controlled by a circuit breaker, typically above 2MVA. Transformer type-oil filled with conservator.

51 Three-phase time delayed overcurrent LV Argus 1 - (3P + 3)

51N Time delayed earth fault LV AG1 – (401-402)

51 Three phase time delayed overcurrent HV Argus 1 - (3P + E)

50 Three phase instantaneous high-set overcurrent HV AG1 – (401-402) 51N Time delayed earth fault HV

90 Automatic voltage control SuperTAPP/MicroTAPP

87BD Bias Differential Duobias M

WTA,WTT Winding temperature alarm and trip status inputs 2 Wdg PT Pressure relief device trip status input

BG,BT Buchholz alarm and trip status inputs 64REF Restricted earth fault LV

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Three winding transformer controlled by a circuit breaker, typically above 2MVA. Transformer type – oil filled with conservator

51 Three-phase time delayed overcurrent LV1 Argus 1 – (3P + E)

51N Time delayed earth fault LV1 AG1 - (401-402)

51 Three-phase time delayed overcurrent LV2 Argus 1 – (3P + E)

51N Time delayed earth fault LV2 AG1 - (401-402)

51 Three-phase time delayed overcurrent HV Argus 1 – (3P + E)

50 Three-phase instantaneous high-set overcurrent HV AG1 - (401-402) 51N Time delayed earth fault HV

87BD Bias differential 64REF Restricted earth fault LV1

64 REF Restricted earth fault LV2 Duobias M

WTA, WTT Winding temperature alarm and trip status inputs 3 Wdg PT Pressure relief device trip status input

BG, BT Buchholz alarm and trip status inputs

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Transformer protection

Differential Numeric current differential relay with integral current magnitude and vector compensation setting for 2 or 3 winding transformers. Eliminates interposing CT's and flag relays for most applications. Protection functions are differential, differential highset, and restricted earth fault for HV and LV: also has a data storage facility triggered internally or externally.

87 Duobias-M

Impedance

21 Ohmega

Overcurrent & earth fault Argus range of numeric relays with multiple independent characteristics, 2 highest & SEF or REF options, data storage and event logging, comms link, ammeter displays and facilities to produce a condition based CB maintenance regime. Single, three and four pole models

50/51 Argus 1 Overload Numeric Thermal Overload

49 Rho 3

Standby earth fault

For resistance earthed systems. Long time characteristic (form 30/5 51 Argus 1

Restricted earth fault

Electro-mechanical relay with low-pass filter circuit which increases the setting at harmonic

frequencies 87 5B3

Numeric relays using high impedance principle, with high harmonic rejection ratio. 87 Argus 1 Sensitive earth fault Numeric relay with wide setting ranges, low burden and adjustable time delay.

50 Argus 1

Transformer voltage control Automatic voltage control

SuperTAPP solid state control relay of 4u height for mounting with modular relays. Incorporates the patented TAPP circuitry.

Requires the 19 rack frame, part RHW19R. 90 RVM/5

Tap change control and monitor unit, includes manual controls, tap position indicator and voltage level monitor. For use in conjunction with the RVM/5 relay

both units fit into the 19 rack frame, part RHW19R, to make a single 4u rack tier. RTMU/1 SuperTAPP solid state relay designed as a direct replacement for AVE relays. RVM/4 Solid state tap position indicator with digital read-out designed to replace analogue

units which use a resistor chain for position sensing. RTPI/1 Tap position indicator, similar to that above, with intelligent runaway protection. RTPI/2 Numeric integrated tap change control and monitor unit MicroTAPP

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Control relays Repeat relay

4 or 6 contact relay which can be provided with heavy duty contacts, no flag RD26-1

As above but with a self reset flag RD26-2

General applications Auto-reclose

Single-shot repetitive scheme relay for single and three pole circuit breakers, normally used in conjunction with distance

protection. 79 Tau 100/200 range

Multi Shot DAR Schemes Tau 400 range

Schemes to the requirements of NGC Transmission Plant Standards using multi-element relays Tau 500 range Multi-shot schemes, with individual sequence settings, integrated into OC, EF

and/or SEF microprocessor based protection Argus 4 Delta Auxiliary A range of voltage operated attracted armature relays with hand, self or electrical

reset contacts, various flag and fixed time delay options.

AR series Directional Numeric integrated with feeder protection relay

67 Argus 2 Check Numeric with check and system sync settings synchronising

25 Argus 7 Flag relays

Attracted armature relays with hand reset flag and self reset contacts FR111

With fixed time delay FR111T

With reverse operating flag for undervoltage applications AR121 Ferro-resonance Ferro-resonance detection with the system energised or de-energised

XR309 B34 Interposing control Control relays with a.c. rejection for use with pilot wires

52 XR105 XR105

XR106 Lockout relay Send relay with either 5kV or 15kV pilot insulation level

85 TEC

Intertripping

Receive relays with either 5kV or 15kV pilot insulation level and: 85

a) Surgeproof to 500V GF3 GF2 & GF4

b) Surgeproof to 5kV BD GF3

Neutral displacement

59

Numeric with programmable time delay Argus 8

Switching relays

Electrical reset relays for general switching 52 AR103 Switchgear position follower, 10 contacts, coils to EB2 specification TR901 Protection or Auto reclose IN/OUT to CEGB TDM 5/11 TR431 Protection unstabilising, to CEGB specification P11 TR512

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Test plugs

Modular test unit based upon a size R2 case 2 RMLG01

Modular system, multi-point test plug RMLB01

Modular system, single point test plug RMLB02

Time delay Electronic time delay with models for delay on energisation, delay on reset and delay on de-energisation

2 DDB

Trip relays High speed relays with a choice of burden and type of contact reset

86 TR

Trip Circuit supervision

Basic trip circuit supervision, e.g. BEBS S15 Scheme H4 27

Self reset flag XR250

Hand reset flag XR251

Full trip circuit supervision with the circuit breaker open or closed, can also provide pre-close supervision, e.g. BEBS S15 Scheme H7 27

D.C. supply supervision 27

Rectifier protection

Overcurrent Short Circuit Numeric/microprocessor IDMT, normal inverse for class I rectifiers (light or general industrial duty) or very inverse for class II rectifiers (heavy industrial or light traction duty)

51 Argus 1 Earth fault

Numeric/microprocessor IDMT, normal inverse for class I rectifiers (light or general industrial duty) or very inverse for class II rectifiers (heavy industrial or light traction duty) 50/51 Argus 1

High impedance earth fault protection on traction transformers.

Solid state with high harmonic rejection ratio 67N Argus 1 Overload Numeric thermal overload

49 Rho 3

Capacitor bank protection

Overcurrent Numeric with selected DTL, NI, VI, EI, LTI characteristics. Two integral highset functions, IDMTL / DTL instantaneous or delayed reset

50/51/87 Argus 1 Overload Numeric thermal overload

49 Rho 3

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Protection Setting studies

• Design Criteria and protection performance confirmed. • Equipment withstand established

• Full record of data settings, and performance Benefits include:

Production of master protection guide for future references; Confidence in capability of main plant. Assists with analysis following an incident.

Intelligent relay programming

• Setting parameters optimised through experienced engineers. • Stored in software and hard copy.

Benefits include:

A cost effective approach: Accuracy avoids need for re-programming and re-testing.

Commissioning Support • Highly skilled engineers

• Test equipment with latest technology • Test programmes prepared • Supervision for insurance certification Benefits include:

Optimisation of customer resource: Access to commissioning knowledge and high tech equipment to ensure a high degree of security, Independent witness, Full test records produced.

Design Specification

• Highly experienced engineers with knowledge in customs and practice, and also international standards.

• Optimum designs emphasising on achieving the best results possible

• Clear specifications of design and alternative options Benefits include:

Optimum security of supply: Minimum plant outage following a fault; damage limitations: latest technology: standards and experience taken into account.

Consultancy

• Assistance with establishing design concepts • Risk and Health and Safety Assessment • Insurance assessment

• Optimisation studies Benefits include:

Optimisation of Customer resources: access to a complete power system design team and a large pool of knowledge.

System review

• Design criteria and performance identified. • Solutions for inadequate systems. • Report following serious incidents. Benefits include:

Up to date record of the system, weakness identified; security complies with good Health & Safety practice.

Conjunctive Testing

• Either on site or in the Hamilton Laboratory

• Effects of harmonic distortion or power systems transients on relay performance can be examined.

• Waveforms can be supplied Benefits include:

Confidence in relay performance: confidence in scheme performance when carried out in the laboratory reduces site commissioning and outage time.

Training

• Products and system design training • Application training

- standard courses - customer specified/tailored

• On site or at Reyrolle with access to laboratory test facilities. Benefits include:

Confidence to self manage during plant life; To carry out routine testing and performance assessment following an incident

Service Contracts

• Maintenance and spares management

• Emergency support 24 hours a day, 365 days a year • Design update with changes in design

Emergency Support

Transmission distribution or generation plant power system protection

• Standby resource for an immediate response • Any protection and control problems • Backed by International technical resource

• Support from office base or on site in minimum response time SERVICES

The following services are available by means of written quotation through our Customer Service Department.

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EQUIVALENTS GUIDE

Reyrolle/Alstom comparison table

ALSTOM TYPE REYROLLE TYPE ALSTOM TYPE REYROLLE TYPE

AUXILIARY AR101 AR103* AR111 AR112 AR131 AR141 AR201 AR211 AR212 TRIPPING TR112 TR121 TR131 TR141 TR212 TR221 TR231 TR241 TR431 SUPERVISION XR105 XR205 XR152 XR250 XR251 XR350 XR351 MEASURING MR111 MR112 FOLLOWER FR101 FR111 FR211 FR212 TIME DELAYS DDB1 DDB5 DDB7 DDB11 DDB12 UNDERVOLTAGE/ OVERVOLTAGE VR115 VR116 VR117 VR121 VR122 UNDERVOLTAGE/ OVERVOLTAGE MVAG23 MVTU13 MVAG21 KVFG P920 IDMTL KCGG122 KCGG142 KCGG142 KCEG112 KCEG142 KCEG142 KCGG + KVTR KCEG + KVTR P120 P121/P122 P123 P125 P126 P127 P140 TRANSFORMER KBCH120 KBCH130 P630 GENERATOR LPGP111 P340 FEEDER LFCB102 MHOR4 OPTIMHO LFZR P400 MOTOR MCHG MOPN P220 OTHERS MFAC14/34 or MCAG14/34 KAVS100 MBCZ KVTL KAVR100/130/159 LFAA MMLG UNDERVOLTAGE/ OVERVOLTAGE VR123 B37 B68 Argus 8 IDMTL Argus 1 (1P) Argus 1 (3P) Argus 1 (4P) Argus 2 (1P) Argus 2 (3P) Argus 2 (4P) Argus 4 Argus 6 Argus 1 (IP) Argus 1 (4P) Argus 4 Argus 2 (IP) Argus 2 (4P) Argus 6 Delta TRANSFORMER Doubias-M (2W) Doubias-M (3W) GENERATOR Gamma 4 FEEDER Microphase-FM Solkor-RF/M/N Ohmega MOTOR Rho 3 OTHERS 5B3 DAD Argus 7 DRS-BB IOTA TAU500 TAU502/503 2RMLG AUXILIARY MVAA11 MVAA14 MVAA11 MVAA13 MVAA11 MVAA13 MVAA21 MVAA21 MVAA21 TRIPPING MVAJ11 MVAJ13 MVAJ14 MVAJ15 MVAJ21 MVAJ23 MVAJ24 MVAJ25 MVAJ34 SUPERVISION MVAW11 MVAW21 MVAX12 MVAX21 MVAX21 MVAX31 MVAX31 MEASURING MCAG11 MCAG12 FOLLOWER MCAA11 MCAA11 MCAA21 MCAA21 TIME DELAYS MVTT14 MVTT14 MVTT15 MVTT15 MVTT15 UNDERVOLTAGE/ OVERVOLTAGE MVAG15 MVAG16 MVAG17 MVAG21 MVAG22

*Note: AR103 does not have a cut-off contact in the operate coil.

EQUIV

ALENTS

GUIDE

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DELIVERY GUIDE

Product line times

Relay Lead Time Guide for Products with standard ratings, settings and contacts

These are despatch dates from receipt of a full order to ex-works release for a UK mainland delivery. For FOB delivery add 2 weeks to the printed lead time, for other types of delivery consult our Sales Office.

4 WEEKS 6 WEEKS 8 WEEKS 10 WEEKS 12 WEEKS 20 WEEKS

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Alpha range Argus range DDB Reydisp Rho 2RMLG B68 Sigma Solkor-N Solkor-R/Rf Solkor Supervision 5B3 Delta Duobias Find Iota Microphase-FM MicroTAPP MSCDN Ohmega 300/400 Solkor-M SuperTAPP Tau BD DAD GF Gamma TEC 2DAB Solkor Inverter DRS-BB

DELIVER

Y

GUIDE

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