Relay Application Guide - yipjacks.com

1 Relay Application Guide2 IntroductionThe relays described in this Application Guide fall into the following categories:MidosA wide range of self-contained relays each comprising module, case, terminals and cover,conforming to IEC255 and BS142 specifications. All modules are of uniform height (178mm)compliant with IEC297, allowing schemes to be built up from separately supplied Midos Range MidosA range of numerical relays featuring communications facilities, programmable inputs and outputs,internal instrumentation and fault records. Disturbance and event records are available when usedwith an external PC. Dual powered versions are available for operation from an insecure acvoltage supply and the line CTs. K Range relays are housed in Midos seriesA range of digital and numerical relays providing comprehensive protection schemes. The relaysfeature communications and instrumentation facilities. They are housed in full width modular cases,compatible with seriesA range of static and microprocessor based relays, providing comprehensive protection andsignalling range of static and numerical relays and control equipment mounted in a full 19 inch caseA range of cases manufactured in accordance with European Standard DIN 43 remainder of the range is housed in special cases, appropriate to each particular a part of the Application description, the devices have been given numbers, where applicable.

2 These numbers arebased on the IEEE system, incorporated into the ANSI/IEEE standard Control Equipment3 Event and Disturbance Recorders3 EHV/HV Feeder Protection4 Traction Feeder Protection7 Feeder Protection7 Auto Reclose9 Generator and Generator/Transformer Protection9 Transformer Protection and Control11 Breaker Fail12 Busbar Protection12 Rectifier Protection13 Capacitor Protection13 Motor Protection13 Additional Protection of Synchronous Motors14 General Applications14 Test Equipment17 Monitoring and Control17 Measuring Instruments17 General Publications18 Application Guides18 Software183 Substation Control EquipmentApplicationDetailsProductPublic ationHousingTypeSubstationMV integrated numerical control system utilising a field Systemcommunications network incorporating: Self-healing fibre optic LAN Full graphical representation of the substation Expandable I/O capability with digital and analogue inputs Time synchronised event recording with printing facility For use with GECA digital relays (K Range)

3 MV Integrated numerical protection & control system, a field bus communication Self-healing fibre optic LAN Integrated OPN protection modules Full graphical representation of the substation Expandable I/O capability with digital and analogue inputs Time synchronised event recording with printing facilityEHV, HV Integrated numerical control and supervisory system Multiple MMIs Flexible centralised or distributed architecture Control and interlocking of switchgear Autoreclose Voltage regulation Time synchronised event recording with printing facility Integrated multiple databasesRemoteSubstation computer for system monitoring and Unit Full graphical representation of the substation in conjunction with a PC Expandable I/O capability with digital and analogue inputs Time synchronised event recording with printing facilitySubstation computer for system monitoring, control and data loggingS90045 180 Rack Full graphical representation of the substation in conjunction with a PC012 103 Expandable I/O capability with digital and analogue inputs Time synchronised event recording with printing facilityEvent and Disturbance RecordersApplicationDetailsProductPublic ationHousingTypeDistance toStand-alone device for measuring distance to fault in km.

4 Miles Locatorpercentage of line lengthSequentialStand-alone data logger to record and time the sequence of eventsS90045180 RackEvent Recorder 1ms resolution012 103 Up to 4032 channels Expandable I/O capability with digital and analogue inputs Time synchronised event recording with printing facility Stores up to 2000 eventsStand-alone data logger to record and time the sequence of Up to 1024 channels 5ms resolution Stores up to 500 eventsDisturbanceStand-alone high capacity equipment for the display and analysis ofSorel on the power system. Including: Up to 32 analogue inputs Up to 64 digital inputs Up to 16 ac/DC analogue inputs distance to fault location External time synchronisation Expandable I/O Sequence component measurements4 Event and Disturbance Recorders (continued)ApplicationDetailsProductPubl icationHousingTypeStand-alone high capacity equipment for the display and analysis on the power system.

5 Including: 8 analogue inputs Up to 32 digital inputs External time synchronisation Expandable I/OEHV/HV Feeder ProtectionApplicationDetailsProductPubli cationHousingtypeDistance protectionHigh-speed numerical distance Relay providing up to 5 zones ofLFZRR4117 Modularfor extra highprotection and a choice of scheme options. Provides Mho phase faultvoltage transmissioncharacteristics with a choice of shaped Mho or quadrilateral earth faultsystemscharacteristics. The Relay has the following standard features:21 independent overcurrent element directional earth fault (DEF) element with scheme options circuit breaker failure monitoring 8 independent setting groups fault location instrumentation fault records disturbance records sequence of events recorder K-Bus communications alternative IEC870 based communications software is available to facilitate the setting of the Relay (see software section) Single or three phase tripping version with additional input and outputLFZR111facilities.

6 Spare line relaying version with three phase tripping and Scadacontrolled setting group Three phase tripping versionLFZR113 Ultra high-speed full scheme distance Relay providing three zoneMicromhoR5406*Modularprotection. It provides mho phase and earth fault characteristics and a(SHNB)choice of scheme Relay is available with the following optional features: three phase or single and three phase tripping power swing blocking directional earth fault element with scheme options mutual compensation for parallel lines voltage transformer supervision lenticular zone 3 to prevent load encroachmentHigh speed numerical distance Relay with four zones of protection characteristics and a choice of scheme Relay has the following standard features: Single or three phase tripping, voltage transformer supervision (VTS),power swing blocking (PSB). Autorecloser Event recording Fault locatorThe Relay has the following options: Standard modelPXLN3001 Model for double circuit linesPXLN30025* indicates inclusion in product catalogue R4126 EHV/HV Feeder Protection (continued)ApplicationDetailsProductPubl icationHousingtypeNumerical distance Relay with five zones of protection with a and a choice of scheme Relay has the following standard features: Single or three phase tripping, voltage transformer supervision VTS.

7 Instrumentation. Four setting Relay is available with the following options: Overload, over voltage and under voltage protection. Autoreclose Check synchronising Direction earth fault Power swing blocking and tripping Fault location Disturbance recording IEC870-S, K-Bus or VDEW, communicationsDistance protectionA range of high-speed static/digital full scheme distance relays providingOptimhoR4056*Modularfor transmission,single or multiple zone protection. They provide shaped Mho phase and(LFZP)sub-transmissionearth fault characteristics (except where indicated), 8 independent settingand distributiongroups and a choice of scheme options. K-Bus communications aresystemsavailable with the use of an external KITZ03 module (see communications21equipment section) or alternatively, IEC870 based communications are alsoincluded. Software is available to facilitate the setting of the Relay (see software section).

8 Selectable quadrilateral earth fault characteristic, single or three phaseLFZP111tripping, voltage transformer supervision (VTS) power swing blocking(PSB) and options of sensitive directional earth fault element with schemeoptions (DEF) and fault locator with instrumentation. For Application tooverhead (O/H) lines. 18 measuring elements Single or three phase tripping, VTS, PSB and options of DEF and faultLFZP112locator with instrumentation. For Application to O/H lines. 18 measuring elements Single or three phase tripping, VTS, PSB and optional Application to underground (U/G) cables. 18 measuring elements Single or three phase tripping, VTS and optional DEF and fault locatorLFZP114with instrumentation. For Application to O/H lines. 12 measuring elements Selectable quadrilateral earth fault characteristic, three phase tripping,LFZP121 VTS and optional fault locator with instrumentation. For Application toO/H lines.

9 12 measuring elements Three phase tripping, VTS and optional fault locator with instrumentation. LFZP122 For Application to O/H lines. 12 measuring elements Three phase tripping, VTS and optional Application to U/G cables. 12 measuring elements Phase distance elements only with DEF, three phase tripping and abilityLFZP131to operate from two phase-phase or 3 limb type voltage transformers(VT). For Application to O/H lines. 9 measuring elements Phase distance elements only with DEF, three phase tripping and abilityLFZP132to operate from two phase-phase or 3 limb type Application to O/H lines. 6 measuring elements6 EHV/HV Feeder Protection (continued)ApplicationDetailsProductPubl icationHousingType Single zone Relay with three phase tripping and VTS. For back-upLFZP151protection of O/H lines, transformers, etc. 6 measuring elementsDistance protectionHigh-speed full scheme distance Relay providing three zone *Modularfor transmission andIt provides shaped mho phase characteristics and an option of either mho(SHPM)sub-transmissionor quadrilateral earth fault characteristics.

10 It has single or three phasesystemstripping, voltage transformer supervision, power swing blocking and a21choice of scheme switched distance Relay providing four zones of Relay has a circular starting element and resistance Relay has single and three phase tripping, voltage transformersupervision and a selection of scheme following optional functions are available: Autorecloser Power swing blocking Voltage memory Transformer saturation detectionStatic distance Relay providing five zones of Relay has a lenticular starting element and reactance Relay has single and three phase tripping, voltage transformersupervision and a selection of scheme following optional functions are available: Independant Zone 2 Independant Zone 3 Power swing blocking AutorecloserThe Relay is available in two options: StandardPXLP3000 For double circuit linesPXLP3000-1 DirectionalNumerical directional comparison protection relays for complete phaseLFDCR4078*Modularcomparisonand ground fault protection for all types of ehv and uhv transmission single circuit breaker applicationsLFDC101 For dual circuit breaker applicationsLFDC102 Alternative to distance as high speed main protection Single or three phase tripping Optional distance zone for back up protection Voltage transformer supervision Optional directional earth faultCurrent differentialNumerical biased differential protection for use with a digitalLFCBR4054*Modular87communication system between feeder ends:for two ended feedersLFCB102for three ended feedersLFCB103for two ended feeders with dual redundant communications channelsLFCB202 Additional versions are available for systems with 11/2 breakerconfigurations.