Functionality.................................................................................... 234Function block................................................................................. 235Signals.............................................................................................235Settings............................................................................................236Monitored data.................................................................................237Operation principle.......................................................................... 237Technical data................................................................................. 241Breaker failure protection 3-phase activation and output CCRBRF (50BF).................................................................................................... 241Identification.................................................................................... 241Functionality.................................................................................... 241Function block................................................................................. 242Signals.............................................................................................242Settings............................................................................................243Monitored data.................................................................................244Operation principle.......................................................................... 244Technical data................................................................................. 246Pole discrepancy protection CCRPLD (52PD)..................................... 247Identification ................................................................................... 247Functionality.................................................................................... 247Function block................................................................................. 248Signals.............................................................................................248Settings............................................................................................248Monitored data.................................................................................249Operation principle.......................................................................... 249Pole discrepancy signaling from circuit breaker......................... 251Unsymmetrical current detection................................................ 252Technical data................................................................................. 252Directional over-/under-power protection GOPPDOP/GUPPDUP(32/37).................................................................................................. 252Functionality.................................................................................... 252Directional overpower protection GOPPDOP (32).......................... 253Identification............................................................................... 253Function block............................................................................ 253Signals........................................................................................254Settings.......................................................................................254Monitored data............................................................................255Directional underpower protection GUPPDUP (37).........................255Identification............................................................................... 256Function block............................................................................ 256Table of contents7Technical manual