ABB RELION 620 Series Technical Manual page 15

620 series ANSI
Technical Manual
Monitored data............................................................................274
Technical data............................................................................ 274
Three-phase undervoltage protection 27.........................................275
Identification............................................................................... 275
Function block............................................................................ 275
Functionality............................................................................... 275
Operation principle..................................................................... 275
Timer characteristics.................................................................. 279
Application.................................................................................. 279
Signals........................................................................................280
Settings.......................................................................................281
Monitored data............................................................................282
Technical data............................................................................ 282
Residual overvoltage protection 59G/N...........................................282
Identification............................................................................... 282
Function block............................................................................ 283
Functionality............................................................................... 283
Operation principle..................................................................... 283
Application.................................................................................. 284
Signals........................................................................................285
Settings.......................................................................................285
Monitored data............................................................................286
Technical data............................................................................ 286
Negative-sequence overvoltage protection 47................................ 286
Identification............................................................................... 286
Function block............................................................................ 287
Functionality............................................................................... 287
Operation principle..................................................................... 287
Application.................................................................................. 288
Signals........................................................................................289
Settings.......................................................................................289
Monitored data............................................................................290
Technical data............................................................................ 290
Positive-sequence undervoltage protection 27PS...........................290
Identification............................................................................... 290
Function block............................................................................ 291
Functionality............................................................................... 291
Operation principle..................................................................... 291
Application.................................................................................. 293
Signals........................................................................................294
Table of contents
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