ABB RES670 Applications Manual page 10

Table of contents
4
Identification.............................................................................. 165
Application................................................................................. 165
Setting guidelines...................................................................... 167
Section 9 Voltage protection........................................................ 173
Two step undervoltage protection UV2PTUV ................................173
Identification.............................................................................. 173
Application................................................................................. 173
Setting guidelines...................................................................... 174
Equipment protection, such as for motors and generators...174
Disconnected equipment detection...................................... 174
Power supply quality ........................................................... 174
Voltage instability mitigation................................................. 174
Backup protection for power system faults...........................174
Settings for two step undervoltage protection...................... 175
Two step overvoltage protection OV2PTOV ..................................176
Identification.............................................................................. 176
Application................................................................................. 177
Setting guidelines...................................................................... 177
Equipment protection, such as for motors, generators,
reactors and transformers.................................................... 178
Equipment protection, capacitors......................................... 178
Power supply quality............................................................ 178
High impedance earthed systems........................................ 178
The following settings can be done for the two step
overvoltage protection.......................................................... 178
Section 10 Frequency protection....................................................181
Underfrequency protection SAPTUF ............................................. 181
Identification.............................................................................. 181
Application................................................................................. 181
Setting guidelines...................................................................... 181
Overfrequency protection SAPTOF ...............................................182
Identification.............................................................................. 182
Application................................................................................. 183
Setting guidelines...................................................................... 183
Rate-of-change of frequency protection SAPFRC .........................184
Identification.............................................................................. 184
Application................................................................................. 184
Setting guidelines...................................................................... 184
Frequency time accumulation protection function FTAQFVR........ 185
Identification.............................................................................. 185
Application................................................................................. 185
Setting guidelines...................................................................... 187
Phasor measurement unit RES670 2.2 IEC
Application manual