ABB RES670 Technical Manual page 11

Phasor measurement unit RES670 2.2 ANSI
Technical manual
Settings............................................................................................216
Monitored data.................................................................................221
Operation principle.......................................................................... 221
Operating quantity within the function........................................ 221
Internal polarizing facility of the function.....................................222
External polarizing for negative sequence function.................... 223
Internal negative sequence protection structure.........................223
Four negative sequence overcurrent stages.............................. 223
Directional supervision element with integrated directional
comparison function................................................................... 225
Technical data................................................................................. 227
Sensitive directional residual overcurrent and power protection
SDEPSDE (67N)...................................................................................228
Identification.................................................................................... 228
Functionality.................................................................................... 229
Function block................................................................................. 231
Signals.............................................................................................231
Settings............................................................................................232
Monitored data.................................................................................234
Operation principle.......................................................................... 234
Function inputs........................................................................... 234
Technical data................................................................................. 242
Thermal overload protection, one time constant Fahrenheit/
Celsius LFPTTR/LCPTTR (26)............................................................. 243
Identification.................................................................................... 243
Functionality.................................................................................... 243
Function block................................................................................. 244
Signals.............................................................................................244
Settings............................................................................................245
Monitored data.................................................................................247
Operation principle.......................................................................... 247
Technical data................................................................................. 251
Directional underpower protection GUPPDUP (37)..............................251
Identification.................................................................................... 251
Functionality.................................................................................... 252
Function block................................................................................. 253
Signals.............................................................................................253
Settings............................................................................................254
Monitored data.................................................................................255
Operation principle.......................................................................... 255
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