ABB REG650 Technical Manual page 15

Technical Manual
Monitored data.................................................................................260
Operation principle..........................................................................260
Measurement principle...............................................................261
Time delay..................................................................................261
Blocking......................................................................................262
Design........................................................................................263
Technical data.................................................................................265
Two step residual overvoltage protection ROV2PTOV (59N)...............265
Identification....................................................................................265
Functionality....................................................................................265
Function block.................................................................................266
Signals.............................................................................................266
Settings............................................................................................267
Monitored data.................................................................................267
Operation principle..........................................................................267
Measurement principle...............................................................268
Time delay..................................................................................268
Blocking......................................................................................269
Design........................................................................................269
Technical data.................................................................................271
Overexcitation protection OEXPVPH (24)............................................271
Identification....................................................................................271
Functionality....................................................................................272
Function block.................................................................................272
Signals.............................................................................................272
Settings............................................................................................273
Monitored data.................................................................................273
Operation principle..........................................................................274
Measured voltage.......................................................................276
Operate time of the overexcitation protection.............................276
Cooling.......................................................................................279
Overexcitation protection function measurands.........................279
Overexcitation alarm...................................................................280
Logic diagram.............................................................................280
Technical data.................................................................................281
100% Stator ground fault protection, 3rd harmonic based
STEFPHIZ (59THD)..............................................................................281
Identification....................................................................................281
Functionality....................................................................................281
Function block.................................................................................283
Table of contents
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