ABB Relion Series 670 Manual page 10

Table of contents
4
Phase segregated Scheme communication logic for
distance protection ZC1PPSCH........................................... 165
Current reversal and weak-end infeed logic for phase
segregated communication ZC1WPSCH............................. 167
Sensitive directional earth fault PSDE.......................................168
Sensitive directional residual overcurrent and power
protection SDEPSDE .......................................................... 168
Switch onto fault logic PSOF..................................................... 171
Automatic switch onto fault logic ZCVPSOF ....................... 171
Time over current PTOC........................................................... 171
Four step residual overcurrent protection, (Zero
sequence or negative sequence directionality) EF4PTOC ..171
Stub protection STBPTOC .................................................. 181
Broken conductor check BRCPTOC ................................... 182
Negative-sequence time overcurrent protection for
machines NS2PTOC ........................................................... 183
Three phase overcurrent LCP3PTOC.................................. 185
Negative sequence overcurrent protection LCNSPTOC...... 186
Zero sequence overcurrent protection LCZSPTOC............. 187
Four step directional negative phase sequence
overcurrent protection NS4PTOC........................................ 188
Four step phase overcurrent protection OC4PTOC............. 193
Four step single phase overcurrent protection PH4SPTOC.197
Four step residual overcurrent protection EF4PTOC........... 201
Sudden change in current variation SCCVPTOC.................206
Overfrequency PTOF................................................................ 206
Overfrequency protection SAPTOF .....................................206
Overvoltage PTOV.................................................................... 207
Negative sequence overvoltage protection LCNSPTOV......207
Zero sequence overvoltage protection LCZSPTOV............. 208
Two step overvoltage protection OV2PTOV ....................... 209
Two step residual overvoltage protection ROV2PTOV ....... 212
Voltage differential protection VDCPTOV............................ 214
Protection trip conditioning PTRC............................................. 215
Carrier receive logic LCCRPTRC.........................................215
Tripping logic common 3-phase output SMPPTRC..............216
Thermal overload PTTR............................................................ 217
Thermal overload protection, one time constant, Celsius
LCPTTR............................................................................... 217
Thermal overload protection, one time constant,
Fahrenheit LFPTTR..............................................................219
Thermal overload protection, two time constants TRPTTR .220
Rotor overload protection GRPTTR..................................... 222
Stator overload protection GSPTTR.....................................224
670 series 2.1 IEC
Communication protocol manual