繼電保護代號(全)[專業(yè)教學]

1、DEVICE CODES（繼電保護代號）12AUnit Overspeed機組過速14轉(zhuǎn)子堵轉(zhuǎn)保護20Fire in Unit21Impedance (Distance) Protection距離保護21T變壓器阻抗保護21/2N光纖縱聯(lián)距離保護21G機組最小阻抗保護24Over-excitation (Volts Per Hertz)過勵磁保護（電壓/頻率繼電器）25Synch Check同步檢查繼電器（同期檢測）25/79低/過電壓保護26-W變壓器繞組油溫保護26-O變壓器油溫保護27Bus Undervoltage母線低電壓27/59Under/Overvoltage Relay低電壓

2、/過電壓保護286ATransformer Trip Circuit 1變壓器跳閘回路1286BTransformer Trip Circuit 2變壓器跳閘回路230Alarm/Annunciator報警/報警器32逆功率保護32FForward Power正向功率32RReverse Power反向功率33Control AC/DC Power Supplies Fail控制回路電源消失37欠電流監(jiān)視38發(fā)電機軸電流保護（通過外接裝置實現(xiàn)溫度監(jiān)視）38T1Unit Bearing Temperature High Trip軸承溫度高跳閘38T2Bearing Oil Overtempera

3、ture 軸承油溫過高38T3Bearing Sump Oil Overtemperature軸承油箱溫度高38V1NDE Bearing Horizontal Vibration High上導軸承水平振動高38V2NDE Bearing Vertical Vibration High上導軸承垂直振動高38V3DE Bearing Horizontal Vibration High下導軸承水平振動高38V4DE Bearing Vertical Vibration High下導軸承垂直振動高40Under Excitation失磁保護46Negative Sequence Overcurren

4、t負序過流保護47相序48Excessive Starting Time啟動超時（啟動時間監(jiān)視）486ABus Zone Protection 1母線保護1486BBus Zone Protection 2母線保護249Thermal Overload過負荷電流保護49E勵磁變過負荷49T1Stator Overtemperature 定子繞組過溫49T2Stator Hot Air Temperature High定子熱空氣溫度高49T3Stator Cold Air Temperature High定子冷空氣溫度高49T4Cooling Water Temperature High冷卻水溫

5、度高49S轉(zhuǎn)子過負荷50Instantaneous Over current瞬時過流保護50/27Inadvertent Energisation低壓過流保護50/51/67Definite Time Overcurrent Directional方向過流保護50/51過電流保護50G/51G零序過流保護50/51E勵磁變高壓側(cè)過電流保護50/51GNSensitive Earth Fault Protection靈敏接地故障保護50/51NInstantaneous And Inverse Time Earth Fault瞬態(tài)和反時限接地故障保護50BFBreaker Failure斷路器失

6、靈50Ns靈敏過流保護51Inverse Time Overcurrent反時限過流保護51V復合電壓閉鎖過流保護50，50N定時限過流保護（相間/接地）51，51N反時限過流保護（相間/接地）586ALine Trip Circuit 1線路跳閘回路1586BLine Trip Circuit 2線路跳閘回路259Bus Overvoltage母線過電壓59/27TN100% Earth Fault Protection With 3RD Harmonics100%定子接地保護59NStator Earth Fault零序過壓59NS定子95%接地保護60FLVT Fuse FailureP

7、T保險絲熔斷63Penstock Pressure Low Trip變壓器壓力釋放保護64，59N零序電壓保護64G100% Earth Fault發(fā)電機100%定子接地64RRotor Earth Fault轉(zhuǎn)子接地保護64S100%接地保護65LGovernor Accumulator Low Level Trip65P1Governor Accumulator High Pressure Trip65P2Governor Accumulator Low Pressure Trip67Directional Phase Overcurrent方向過流保護67GDirectional Ove

8、rcurrent (Earth Fault)方向過流保護（接地故障）67NDirectional Overcurrent (Earth Fault)方向過流保護（接地故障）67，67N方向時限過流保護（定時限/反時限，相間/接地）67Ns,50Ns方向/無方向靈敏接地故障檢測68Power Swing Blocking振蕩閉鎖71變壓器繞組油位保護71ACooling Water Sump Low冷卻水水位低71BTailwater High Level Trip尾水水位過高跳閘74/1、74/2斷路器跳閘回路監(jiān)視78發(fā)電機異步保護79Auto Reclose自動重合閘81Over/Under

9、 Frequency高頻/低頻率保護81HOver Frenquency過頻81LUnder Frenquency低頻81R頻率變化率保護85Carrier Relay載波繼電器（遠方保護設備接口）66/86重啟動抑制86Lock-Out Relay閉鎖繼電器86AUnit Trip A機組A相跳閘86BUnit Trip B機組B相跳閘86CUnit Trip C機組C相跳閘86TTransformer Lock-Out Relay變壓器閉鎖繼電器87Differential差動保護87N零序差動保護87G發(fā)電機差動保護87T主變差動保護87TN主變中性點差動保護87SBBus-bar pr

10、otection母線差動保護87BE87LLine Differential Relay線路差動保護87NRestricted Earth Fault Relay限制性接地故障保護87GGenerator Differential發(fā)電機差動保護87UUnit Differential發(fā)變組差動保護87GT發(fā)變組差動保護94Auxiliary Trip Telay輔助跳閘繼電器95CT SupervisionCT監(jiān)視繼電器96變壓器重/輕瓦斯保護AVR/EXAutomatic Voltage Regulator /Excitation Unit自動電壓調(diào)節(jié)裝置單元BUCHBuchholz 瓦斯繼電器FLFault locating故障定位FR故障記錄FPLCFEA PLC Order TripINSTRUMENTInstrumentation Device使用設備METERINGMetering Unit測量單元OTOil Temperature油溫SPLCStation PLC Order TripTCPRTap Changer Pressure Relief Valve分接頭減壓閥WTWi