繼電保護(hù)代號(hào)(全)[專業(yè)教學(xué)]

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

2、/過電壓保護(hù)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(bào)警/報(bào)警器32逆功率保護(hù)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(jī)軸電流保護(hù)（通過外接裝置實(shí)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(dǎo)軸承水平振動(dòng)高38V2NDE Bearing Vertical Vibration High上導(dǎo)軸承垂直振動(dòng)高38V3DE Bearing Horizontal Vibration High下導(dǎo)軸承水平振動(dòng)高38V4DE Bearing Vertical Vibration High下導(dǎo)軸承垂直振動(dòng)高40Under Excitation失磁保護(hù)46Negative Sequence Overcurren

4、t負(fù)序過流保護(hù)47相序48Excessive Starting Time啟動(dòng)超時(shí)（啟動(dòng)時(shí)間監(jiān)視）486ABus Zone Protection 1母線保護(hù)1486BBus Zone Protection 2母線保護(hù)249Thermal Overload過負(fù)荷電流保護(hù)49E勵(lì)磁變過負(fù)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(fù)荷50Instantaneous Over current瞬時(shí)過流保護(hù)50/27Inadvertent Energisation低壓過流保護(hù)50/51/67Definite Time Overcurrent Directional方向過流保護(hù)50/51過電流保護(hù)50G/51G零序過流保護(hù)50/51E勵(lì)磁變高壓側(cè)過電流保護(hù)50/51GNSensitive Earth Fault Protection靈敏接地故障保護(hù)50/51NInstantaneous And Inverse Time Earth Fault瞬態(tài)和反時(shí)限接地故障保護(hù)50BFBreaker Failure斷路器失

6、靈50Ns靈敏過流保護(hù)51Inverse Time Overcurrent反時(shí)限過流保護(hù)51V復(fù)合電壓閉鎖過流保護(hù)50，50N定時(shí)限過流保護(hù)（相間/接地）51，51N反時(shí)限過流保護(hù)（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(hù)59NStator Earth Fault零序過壓59NS定子95%接地保護(hù)60FLVT Fuse FailureP

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

8、rcurrent (Earth Fault)方向過流保護(hù)（接地故障）67NDirectional Overcurrent (Earth Fault)方向過流保護(hù)（接地故障）67，67N方向時(shí)限過流保護(hù)（定時(shí)限/反時(shí)限，相間/接地）67Ns,50Ns方向/無方向靈敏接地故障檢測(cè)68Power Swing Blocking振蕩閉鎖71變壓器繞組油位保護(hù)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(jī)異步保護(hù)79Auto Reclose自動(dòng)重合閘81Over/Under

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

10、otection母線差動(dòng)保護(hù)87BE87LLine Differential Relay線路差動(dòng)保護(hù)87NRestricted Earth Fault Relay限制性接地故障保護(hù)87GGenerator Differential發(fā)電機(jī)差動(dòng)保護(hù)87UUnit Differential發(fā)變組差動(dòng)保護(hù)87GT發(fā)變組差動(dòng)保護(hù)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(hù)AVR/EXAutomatic Voltage Regulator /Excitation Unit自動(dòng)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(shè)備METERINGMetering Unit測(cè)量單元OTOil Temperature油溫SPLCStation PLC Order TripTCPRTap Changer Pressure Relief Valve分接頭減壓閥WTWi