ABB REL650 Applications Manual page 13

Application manual
Application....................................................................................... 241
Directional overpower protection GOPPDOP (32).......................... 243
Identification............................................................................... 244
Setting guidelines....................................................................... 244
Directional underpower protection GUPPDUP (37).........................248
Identification............................................................................... 248
Setting guidelines....................................................................... 248
Negative sequence based overcurrent function DNSPTOC (46)......... 252
Identification.................................................................................... 252
Application....................................................................................... 252
Setting guidelines............................................................................ 252
Section 8 Voltage protection............................................................. 255
Two step undervoltage protection UV2PTUV (27)................................255
Identification.................................................................................... 255
Application....................................................................................... 255
Setting guidelines............................................................................ 256
Equipment protection, such as for motors and generators.........256
Disconnected equipment detection............................................ 256
Power supply quality ..................................................................256
Voltage instability mitigation....................................................... 257
Backup protection for power system faults.................................257
Settings for Two step undervoltage protection........................... 257
Two step overvoltage protection OV2PTOV (59)................................. 258
Identification.................................................................................... 258
Application....................................................................................... 259
Setting guidelines............................................................................ 259
Two step residual overvoltage protection ROV2PTOV (59N)...............262
Identification.................................................................................... 262
Application....................................................................................... 262
Setting guidelines............................................................................ 262
Power supply quality...................................................................263
High impedance grounded systems........................................... 263
Direct grounded system..............................................................264
Settings for Two step residual overvoltage protection................265
Loss of voltage check LOVPTUV (27).................................................. 267
Identification.................................................................................... 267
Application....................................................................................... 267
Setting guidelines............................................................................ 267
Advanced users settings................................................................. 267
Table of contents
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