ABB REL670 Operator's Manual
Also see for RELION REL670: Installation manualInstallation manualCommissioning manualProduct guideCommunication protocol manual
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Contents
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Automatic switch onto fault logic ZCVPSOF................................76Power swing detection ZMRPSB (78)..........................................77Power swing logic ZMRPSL.........................................................77Current protection..............................................................................77Breaker failure protection CCRBRF (50BF).................................77Broken conductor check BRCPTOC (46).....................................77Directional over-power protection GOPPDOP (32)......................77Directional under-power protection GUPPDUP (37)....................78Instantaneous phase overcurrent protection PHPIOC (50)..........78Instantaneous residual overcurrent protection EFPIOC(50N).............................................................................................78Four step phase overcurrent protection OC4PTOC(51_67).........78Pole discordance protection CCRPLD (52PD).............................78Four step residual overcurrent protection EF4PTOC(51N_67N)....................................................................................78Sensitive directional residual over current and powerprotection SDEPSDE (67N)..........................................................79Stub protection STBPTOC (50STB).............................................79Thermal overload protection, one time constant LPTTR(26)...............................................................................................79Voltage protection..............................................................................79Loss of voltage check LOVPTUV (27)..........................................79Overexcitation protection OEXPVPH (24)....................................79Two step overvoltage protection OV2PTOV (59).........................80Two step residual overvoltage protection ROV2PTOV(59N).............................................................................................80Two step undervoltage protection UV2PTUV (27).......................80Voltage differential protection VDCPTOV (60).............................80Frequency protection.........................................................................80Overfrequency protection SAPTOF (81)......................................80Rate-of-change frequency protection SAPFRC (81)....................81Underfrequency protection SAPTUF (81).....................................81Multipurpose protection.....................................................................81General current and voltage protection CVGAPC........................81Scheme communication....................................................................82Scheme communication logic for distance or overcurrentprotection ZCPSCH (85)...............................................................82Phase segregated Scheme communication logic fordistance protection ZC1PPSCH (85)............................................82Current reversal and weak-end infeed logic for distanceprotection ZCRWPSCH (85).........................................................82Table of contents8Operator's manual |
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