ABB REL650 series Technical Manual page 15

Technical manual
Signals........................................................................................280
Settings.......................................................................................281
Monitored data............................................................................282
Directional underpower protection GUPPDUP (37).........................282
Identification............................................................................... 282
Function block............................................................................ 282
Signals........................................................................................283
Settings.......................................................................................283
Monitored data............................................................................284
Operation principle.......................................................................... 284
Low pass filtering........................................................................286
Technical data................................................................................. 287
Negative sequence based overcurrent function DNSPTOC (46)......... 288
Identification.................................................................................... 288
Functionality.................................................................................... 288
Function block................................................................................. 289
Signals.............................................................................................289
Settings............................................................................................290
Monitored data.................................................................................291
Operation principle.......................................................................... 291
Technical data................................................................................. 291
Section 8 Voltage protection............................................................. 293
Two step undervoltage protection UV2PTUV (27)................................293
Identification.................................................................................... 293
Functionality.................................................................................... 293
Function block................................................................................. 293
Signals.............................................................................................294
Settings............................................................................................294
Monitored data.................................................................................295
Operation principle.......................................................................... 295
Measurement principle............................................................... 296
Time delay.................................................................................. 296
Blocking...................................................................................... 297
Design........................................................................................ 298
Technical data................................................................................. 299
Two step overvoltage protection OV2PTOV (59)................................. 299
Identification.................................................................................... 299
Functionality.................................................................................... 299
Function block................................................................................. 300
Table of contents
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