ABB REG650 Technical Manual page 14

Table of contents
8
Operation principle..........................................................................240
Pickup sensitivity........................................................................242
Alarm function.............................................................................242
Logic diagram.............................................................................243
Technical data.................................................................................243
Voltage-restrained time overcurrent protection VR2PVOC(51V)..........244
Identification....................................................................................244
Functionality....................................................................................244
Function block.................................................................................245
Signals.............................................................................................245
Settings............................................................................................245
Monitored data.................................................................................247
Operation principle..........................................................................247
Measured quantities...................................................................247
Base quantities...........................................................................247
Overcurrent protection................................................................247
Logic diagram.............................................................................249
Undervoltage protection.............................................................250
Technical data.................................................................................250
Section 9 Voltage protection.............................................................251
Two step undervoltage protection UV2PTUV (27)................................251
Identification....................................................................................251
Functionality....................................................................................251
Function block.................................................................................251
Signals.............................................................................................252
Settings............................................................................................252
Monitored data.................................................................................253
Operation principle..........................................................................253
Measurement principle...............................................................254
Time delay..................................................................................254
Blocking......................................................................................255
Design........................................................................................255
Technical data.................................................................................257
Two step overvoltage protection OV2PTOV (59).................................257
Identification....................................................................................257
Functionality....................................................................................257
Function block.................................................................................258
Signals.............................................................................................258
Settings............................................................................................259
Technical Manual