ABB RED650 - Page 10

Identification.............................................................................. 152
Application................................................................................. 152
Setting guidelines...................................................................... 153
Settings for each step...........................................................155
Setting example....................................................................158
Instantaneous residual overcurrent protection EFPIOC ................ 163
Identification.............................................................................. 163
Application................................................................................. 163
Setting guidelines...................................................................... 163
Directional residual overcurrent protection, four steps EF4PTOC .166
Identification.............................................................................. 166
Application................................................................................. 166
Setting guidelines...................................................................... 168
Common settings for all steps.............................................. 169
2nd harmonic restrain...........................................................170
Parallel transformer inrush current logic...............................171
Switch onto fault logic...........................................................172
Settings for each step (x = 1, 2, 3 and 4)............................. 173
Line application example......................................................175
Thermal overload protection, one time constant, Celsius/
Fahrenheit LCPTTR/LFPTTR.........................................................180
Identification.............................................................................. 180
Application................................................................................. 180
Setting guideline........................................................................ 181
Breaker failure protection CCRBRF............................................... 182
Identification.............................................................................. 182
Application................................................................................. 182
Setting guidelines...................................................................... 183
Pole discordance protection CCPDSC........................................... 186
Identification.............................................................................. 187
Application................................................................................. 187
Setting guidelines...................................................................... 187
Section 9 Voltage protection........................................................ 189
Two step undervoltage protection UV2PTUV ................................189
Identification.............................................................................. 189
Application................................................................................. 189
Setting guidelines...................................................................... 190
Equipment protection, such as for motors and generators...190
Disconnected equipment detection...................................... 190
Power supply quality ........................................................... 190
Voltage instability mitigation................................................. 190
Backup protection for power system faults...........................190
Settings for two step undervoltage protection...................... 191
Table of contents
4 Line differential protection RED650 2.2 IEC
Application manual