ABB Network Partner AB
Page I
Contents Page
Application..............................................................................................5-1
Design ....................................................................................................5-1
Three-phase front logic ..................................................................5-1
Single-phase front logic..................................................................5-2
Tripping logic circuits......................................................................5-3
Testing....................................................................................................5-6
Appendix.................................................................................................5-7
Terminal diagrams..........................................................................5-7
Signal list........................................................................................5-7
Setting table ...................................................................................5-8
Application..............................................................................................5-9
Synchronism check ........................................................................5-9
Energizing check..........................................................................5-11
Voltage selection..........................................................................5-12
Voltage selection for a single busbar...................................5-13
Voltage selection for a double bus.......................................5-16
Theory of operation ..............................................................................5-17
Synchro check..............................................................................5-17
Voltage-selection..........................................................................5-18
Setting ..................................................................................................5-20
Operation......................................................................................5-20
Input phase...................................................................................5-21
UMeasure.....................................................................................5-21
USelection.................................................................................... 5-21
AutoEnerg and ManEnerg............................................................5-21
Testing..................................................................................................5-22
Test equipment.............................................................................5-22
Synchro-check tests.....................................................................5-22
Test of voltage difference ....................................................5-22
Test of phase difference ......................................................5-24
Test of frequency difference ................................................5-25
Test of reference voltage.....................................................5-25
Test of energizing check ..............................................................5-25
Test of dead line live bus (DLLB).........................................5-25
Dead bus live line (DBLL)....................................................5-26
Energizing in both directions (DLLB or DBLL).....................5-27
Test of voltage selection......................................................5-27
Appendix...............................................................................................5-29
Terminal diagrams........................................................................5-29