ABB RES670 Applications Manual page 9

Phasor measurement unit RES670 2.2 IEC
Application manual
Basic characteristics.............................................................108
Setting guidelines...................................................................... 108
Out-of-step protection OOSPPAM .................................................116
Identification.............................................................................. 116
Application................................................................................. 116
Setting guidelines...................................................................... 119
Section 8 Current protection.........................................................123
Directional phase overcurrent protection, four steps OC4PTOC....123
Identification.............................................................................. 123
Application................................................................................. 123
Setting guidelines...................................................................... 124
Settings for each step...........................................................126
Setting example....................................................................129
Directional residual overcurrent protection, four steps EF4PTOC .134
Identification.............................................................................. 134
Setting guidelines...................................................................... 134
Common settings for all steps.............................................. 135
2nd harmonic restrain...........................................................136
Parallel transformer inrush current logic...............................137
Switch onto fault logic...........................................................137
Settings for each step (x = 1, 2, 3 and 4)............................. 138
Four step directional negative phase sequence overcurrent
protection NS4PTOC .....................................................................141
Identification.............................................................................. 141
Application................................................................................. 141
Setting guidelines...................................................................... 143
Settings for each step ..........................................................143
Common settings for all steps.............................................. 146
Sensitive directional residual overcurrent and power protection
SDEPSDE ..................................................................................... 147
Identification.............................................................................. 148
Application................................................................................. 148
Setting guidelines...................................................................... 149
Thermal overload protection, one time constant, Celsius/
Fahrenheit LCPTTR/LFPTTR.........................................................158
Identification.............................................................................. 158
Application................................................................................. 158
Setting guideline........................................................................ 159
Directional underpower protection GUPPDUP............................... 160
Identification.............................................................................. 160
Application................................................................................. 160
Setting guidelines...................................................................... 162
Directional overpower protection GOPPDOP ................................165
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