ABB Relion 670 Series Applications Manual page 10

Table of contents
8.6.3 Setting guidelines......................................................................................................................... 152
8.7 Directional overpower protection GOPPDOP (32)....................................................................156
8.7.1 Identification................................................................................................................................. 156
8.7.2 Application..................................................................................................................................... 156
8.7.3 Setting guidelines.........................................................................................................................158
Section 9 Voltage protection.......................................................................................... 163
9.1 Two step undervoltage protection UV2PTUV (27)....................................................................163
9.1.1 Identification................................................................................................................................. 163
9.1.2 Application..................................................................................................................................... 163
9.1.3 Setting guidelines......................................................................................................................... 163
9.1.3.1
9.1.3.2
9.1.3.3
9.1.3.4
9.1.3.5
9.1.3.6
9.2 Two step overvoltage protection OV2PTOV (59)..................................................................... 166
9.2.1 Identification................................................................................................................................. 166
9.2.2 Application..................................................................................................................................... 166
9.2.3 Setting guidelines.........................................................................................................................166
9.2.3.1
9.2.3.2
9.2.3.3
9.2.3.4
9.2.3.5
Section 10 Frequency protection...................................................................................... 171
10.1 Underfrequency protection SAPTUF (81)....................................................................................171
10.1.1 Identification.................................................................................................................................. 171
10.1.2 Application...................................................................................................................................... 171
10.1.3 Setting guidelines..........................................................................................................................171
10.2 Overfrequency protection SAPTOF (81)......................................................................................172
10.2.1 Identification..................................................................................................................................172
10.2.2 Application......................................................................................................................................172
10.2.3 Setting guidelines......................................................................................................................... 173
10.3 Rate-of-change of frequency protection SAPFRC (81).............................................................173
10.3.1 Identification..................................................................................................................................173
10.3.2 Application......................................................................................................................................173
10.3.3 Setting guidelines......................................................................................................................... 174
10.4 Frequency time accumulation protection function FTAQFVR (81A)..................................... 175
10.4.1 Identification..................................................................................................................................175
10.4.2 Application......................................................................................................................................175
4
Equipment protection, such as for motors and generators.......................................... 164
Disconnected equipment detection....................................................................................164
Power supply quality ..............................................................................................................164
Voltage instability mitigation...............................................................................................164
Backup protection for power system faults......................................................................164
Settings for two step undervoltage protection................................................................164
Equipment protection, such as for motors, generators, reactors and
transformers.............................................................................................................................167
Equipment protection, capacitors.......................................................................................167
Power supply quality...............................................................................................................167
High impedance grounded systems....................................................................................167
The following settings can be done for the two step overvoltage protection........... 167
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1MRK 511 407-UUS Rev. J
Phasor measurement unit RES670
Application manual