继电保护代号(全)

DEVICECODES（继电保护代号）12AUnitOverspeed机组过速14转子堵转保护20FireinUnit21Impedance(Distance)Protection距离保护21T变压器阻抗保护21/2N光纤纵联距离保护21G机组最小阻抗保护24Over-excitation(VoltsPerHertz)过励磁保护（电压/频率继电器）25SynchCheck同步检查继电器（同期检测）25/79低/过电压保护26-W变压器绕组油温保护26-O变压器油温保护27BusUndervoltage母线低电压27/59Under/OvervoltageRelay低电压/过电压保护286ATransformerTripCircuit1变压器跳闸回路1286BTransformerTripCircuit2变压器跳闸回路230Alarm/Annunciator报警/报警器32逆功率保护32FForwardPower正向功率32RReversePower反向功率33ControlAC/DCPowerSuppliesFail控制回路电源消失37欠电流监视38发电机轴电流保护（通过外接装置实现温度监视）38T1UnitBearingTemperatureHighTrip轴承温度高跳闸38T2BearingOilOvertemperature轴承油温过高38T3BearingSumpOilOvertemperature轴承油箱温度高38V1NDEBearingHorizontalVibrationHigh上导轴承水平振动高38V2NDEBearingVerticalVibrationHigh上导轴承垂直振动高38V3DEBearingHorizontalVibrationHigh下导轴承水平振动高38V4DEBearingVerticalVibrationHigh下导轴承垂直振动高40UnderExcitation失磁保护46NegativeSequenceOvercurrent负序过流保护47相序48ExcessiveStartingTime启动超时（启动时间监视）486ABusZoneProtection1母线保护1486BBusZoneProtection2母线保护249ThermalOverload过负荷电流保护49E励磁变过负荷49T1StatorOvertemperature定子绕组过温49T2StatorHotAirTemperatureHigh定子热空气温度高49T3StatorColdAirTemperatureHigh定子冷空气温度高49T4CoolingWaterTemperatureHigh冷却水温度高49S转子过负荷50InstantaneousOvercurrent瞬时过流保护50/27InadvertentEnergisation低压过流保护50/51/67DefiniteTimeOvercurrentDirectional方向过流保护50/51过电流保护50G/51G零序过流保护50/51E励磁变高压侧过电流保护50/51GNSensitiveEarthFaultProtection灵敏接地故障保护50/51NInstantaneousAndInverseTimeEarthFault瞬态和反时限接地故障保护50BFBreakerFailure断路器失灵50Ns灵敏过流保护51InverseTimeOvercurrent反时限过流保护51V复合电压闭锁过流保护50，50N定时限过流保护（相间/接地）51，51N反时限过流保护（相间/接地）586ALineTripCircuit1线路跳闸回路1586BLineTripCircuit2线路跳闸回路259BusOvervoltage母线过电压59/27TN100%EarthFaultProtectionWith3RDHarmonics100%定子接地保护59NStatorEarthFault零序过压59NS定子95%接地保护60FLVTFuseFailurePT保险丝熔断63PenstockPressureLowTrip变压器压力释放保护64，59N零序电压保护64G100%EarthFault发电机100%定子接地64RRotorEarthFault转子接地保护64S100%接地保护65LGovernorAccumulatorLowLevelTrip65P1GovernorAccumulatorHighPressureTrip65P2GovernorAccumulatorLowPressureTrip67DirectionalPhaseOvercurrent方向过流保护67GDirectionalOvercurrent(EarthFault)方向过流保护（接地故障）67NDirectionalOvercurrent(EarthFault)方向过流保护（接地故障）67，67N方向时限过流保护（定时限/反时限，相间/接地）67Ns,50Ns方向/无方向灵敏接地故障检测68PowerSwingBlocking振荡闭锁71变压器绕组油位保护71ACoolingWaterSumpLow冷却水水位低71BTailwaterHighLevelTrip尾水水位过高跳闸74/1、74/2断路器跳闸回路监视78发电机异步保护79AutoReclose自动重合闸81Over/UnderFrequency高频/低频率保护81HOverFrenquency过频81LUnderFrenquency低频81R频率变化率保护85CarrierRelay载波继电器（远方保护设备接口）66/86重启动抑制86Lock-OutRelay闭锁继电器86AUnitTripA机组A相跳闸86BUnitTripB机组B相跳闸86CUnitTripC机组C相跳闸86TTransformerLock-OutRelay变压器闭锁继电器87Differential差动保护87N零序差动保护87G发电机差动保护87T主变差动保护87TN主变中性点差动保护87SBBus-barprotection母线差动保护87BE87LLineDifferentialRelay线路差动保护87NRestrictedEarthFaultRelay限制性接地故障保护87GGeneratorDifferential发电机差动保护87UUnitDifferential发变组差动保护87GT发变组差动保护94AuxiliaryTripTelay辅助跳闸继电器95CTSupervisionCT监视继电器96变压器重/轻瓦斯保护AVR/EXAutomaticVoltageRegulator/ExcitationUnit自动电压调节装置单元BUCHBuchholz瓦斯继电器FLFaultlocating故障定位FR故障记录FPLCFEAPLCOrderTripINSTRUMENTInstrumentationDevice使用设备METERINGMeteringUnit测量单元OTOilTemperature油温SPLCStationPLCOrderTripTCPRTapChangerPressureReliefValve分接头减压阀WTWindingTemperature绕组温度IEDIntelligentElectronicDevice智能电子设备NDMENetworkDisturbanceMonitoringEquipment故障录波器RTURemoteTerminalUnit远动装置PLCPowerLineCarrier电力线载波器