5-188 G30 Generator Protection System GE Multilin5.6 GROUPED ELEMENTS 5 SETTINGS55.6.9 SPLIT PHASE PROTECTION (ANSI 50SP)PATH: SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) SPLIT PHASESome generators, due to physical construction, have windings that consist of multiple adjacent turns. It is therefore possiblefor faults to develop between turns on the same phase (inter-turn faults). These faults are not detected by the stator differ-ential protection, as there is no difference between the neutral and at the terminal currents. Split phase protection may beapplied to detect inter-turn faults in the case that the generator is wound with two three-phase windings, each brought sep-arately out of the machine and connected in parallel. The currents in the two windings are compared, any difference indicat-ing an inter-turn fault. SPLIT PHASESPLIT PHASEFUNCTION: DisabledRange: Disabled, EnabledMESSAGE SPLIT PHASE SOURCE:SRC 1Range: SRC 1, SRC 2, SRC 3, SRC 4MESSAGE SPLIT PHASE LOADSOURCE: SRC 2Range: SRC 1, SRC 2, SRC 3, SRC 4MESSAGE SPLIT PHASE APICKUP: 0.200 puRange: 0.020 to 1.500 pu in steps of 0.001MESSAGE SPLIT PHASE AOFFSET: 0.000 puRange: 0.000 to 1.000 pu in steps of 0.001MESSAGE SPLIT PHASE A SLOPE:0.0%Range: 0.0 to 100% in steps of 0.1MESSAGE SPLIT PHASE BPICKUP: 0.200 puRange: 0.020 to 1.500 pu in steps of 0.001MESSAGE SPLIT PHASE BOFFSET: 0.000 puRange: 0.000 to 1.000 pu in steps of 0.001MESSAGE SPLIT PHASE B SLOPE:0.0%Range: 0.0 to 100% in steps of 0.1MESSAGE SPLIT PHASE CPICKUP: 0.200 puRange: 0.020 to 1.500 pu in steps of 0.001MESSAGE SPLIT PHASE COFFSET: 0.000 puRange: 0.000 to 1.000 pu in steps of 0.001MESSAGE SPLIT PHASE C SLOPE:0.0%Range: 0.0 to 100% in steps of 0.1MESSAGE SPLIT PHASE MINLOAD: 0.00 puRange: 0.00 to 1.00 pu in steps of 0.01MESSAGE SPLIT PHASE MODE:OverRange: Over, Over-UnderMESSAGE SPLIT PHASE DELAY:0.000 sRange: 0.000 to 65.535 s in steps of 0.001MESSAGE SPLIT PHASE BLK:OffRange: FlexLogic operandMESSAGE SPLIT PHASE TARGET:Self-ResetRange: Self-reset, Latched, DisabledMESSAGE SPLIT PHASE EVENTS:DisabledRange: Enabled, Disabled
