ABB REG650 Technical Manual page 14

Table of contents
8
Monitored data...........................................................................225
Operation principle....................................................................226
Measurement principle.........................................................226
Time delay............................................................................227
Blocking................................................................................228
Design..................................................................................228
Technical data...........................................................................230
Two step residual overvoltage protection ROV2PTOV .................230
Identification..............................................................................230
Functionality..............................................................................230
Function block...........................................................................231
Signals.......................................................................................231
Settings......................................................................................231
Monitored data...........................................................................232
Operation principle....................................................................232
Measurement principle.........................................................233
Time delay............................................................................233
Blocking................................................................................234
Design..................................................................................234
Technical data...........................................................................236
Overexcitation protection OEXPVPH ............................................236
Identification..............................................................................236
Functionality..............................................................................236
Function block...........................................................................237
Signals.......................................................................................237
Settings......................................................................................237
Monitored data...........................................................................238
Operation principle....................................................................238
Measured voltage.................................................................240
Operate time of the overexcitation protection.......................241
Cooling.................................................................................243
Overexcitation protection function measurands...................244
Overexcitation alarm............................................................244
Logic diagram.......................................................................245
Technical data...........................................................................245
100% Stator earth fault protection, 3rd harmonic based
STEFPHIZ......................................................................................246
Identification..............................................................................246
IntroductionFunctionality............................................................246
Function block...........................................................................247
Signals.......................................................................................247
Settings......................................................................................248
Monitored data...........................................................................249
Technical Manual