ABB RED650 - Page 10

Technical data........................................................................... 158
Section 8 Current protection.........................................................159
Instantaneous phase overcurrent protection PHPIOC .................. 159
Identification.............................................................................. 159
Functionality.............................................................................. 159
Function block........................................................................... 159
Signals.......................................................................................159
Settings......................................................................................160
Monitored data...........................................................................160
Operation principle.................................................................... 161
Technical data........................................................................... 162
Directional phase overcurrent protection, four steps OC4PTOC....162
Identification.............................................................................. 162
Functionality.............................................................................. 162
Function block........................................................................... 163
Signals.......................................................................................164
Settings......................................................................................165
Monitored data...........................................................................171
Operation principle.................................................................... 171
Technical data........................................................................... 178
Instantaneous residual overcurrent protection EFPIOC ................ 179
Identification.............................................................................. 179
Functionality.............................................................................. 179
Function block........................................................................... 179
Signals.......................................................................................179
Settings......................................................................................180
Monitored data...........................................................................180
Operation principle.................................................................... 180
Technical data........................................................................... 181
Directional residual overcurrent protection, four steps EF4PTOC .182
Identification.............................................................................. 182
Functionality.............................................................................. 182
Function block........................................................................... 183
Signals.......................................................................................183
Settings......................................................................................184
Monitored data...........................................................................191
Operation principle.................................................................... 191
Operating quantity within the function.................................. 191
Internal polarizing................................................................. 192
External polarizing for earth-fault function............................195
Directional detection for earth fault function......................... 195
Base quantities within the protection....................................195
Internal earth-fault protection structure................................ 195
Table of contents
4 Line differential protection RED650 2.2 IEC
Technical manual