ABB REG650 - Page 15

Time delay............................................................................267
Blocking................................................................................268
Design.................................................................................. 268
Technical data........................................................................... 270
Two step residual overvoltage protection ROV2PTOV ................. 270
Identification.............................................................................. 270
Functionality.............................................................................. 270
Function block........................................................................... 271
Signals.......................................................................................271
Settings......................................................................................271
Monitored data...........................................................................272
Operation principle.................................................................... 272
Measurement principle......................................................... 273
Time delay............................................................................273
Blocking................................................................................273
Design.................................................................................. 273
Technical data........................................................................... 275
Overexcitation protection OEXPVPH ............................................ 275
Identification.............................................................................. 275
Functionality.............................................................................. 275
Function block........................................................................... 276
Signals.......................................................................................276
Settings......................................................................................276
Monitored data...........................................................................277
Operation principle.................................................................... 277
Measured voltage.................................................................279
Operate time of the overexcitation protection.......................280
Cooling................................................................................. 282
Overexcitation protection function measurands................... 283
Overexcitation alarm............................................................ 283
Logic diagram.......................................................................284
Technical data........................................................................... 284
100% Stator earth fault protection, 3rd harmonic based STEFPHIZ285
Identification.............................................................................. 285
Functionality.............................................................................. 285
Function block........................................................................... 286
Signals.......................................................................................286
Settings......................................................................................287
Monitored data...........................................................................288
Operation principle.................................................................... 288
Technical data........................................................................... 293
Section 10 Frequency protection....................................................295
Underfrequency protection SAPTUF ............................................. 295
Table of contents
9
Technical manual