Split Phase Protection (Ansi 50Sp) - GE G30 Instruction Manual

5.6 GROUPED ELEMENTS
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PATH: SETTINGS GROUPED ELEMENTS
 SPLIT PHASE
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5
Some generators, due to physical construction, have windings that consist of multiple adjacent turns. It is therefore possible
for 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 be
applied 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.
5-188
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SETTING GROUP 1(6)
SPLIT PHASE
FUNCTION: Disabled
SPLIT PHASE SOURCE:
MESSAGE
SRC 1
SPLIT PHASE LOAD
MESSAGE
SOURCE: SRC 2
SPLIT PHASE A
MESSAGE
PICKUP: 0.200 pu
SPLIT PHASE A
MESSAGE
OFFSET: 0.000 pu
SPLIT PHASE A SLOPE:
MESSAGE
0.0%
SPLIT PHASE B
MESSAGE
PICKUP: 0.200 pu
SPLIT PHASE B
MESSAGE
OFFSET: 0.000 pu
SPLIT PHASE B SLOPE:
MESSAGE
0.0%
SPLIT PHASE C
MESSAGE
PICKUP: 0.200 pu
SPLIT PHASE C
MESSAGE
OFFSET: 0.000 pu
SPLIT PHASE C SLOPE:
MESSAGE
0.0%
SPLIT PHASE MIN
MESSAGE
LOAD: 0.00 pu
SPLIT PHASE MODE:
MESSAGE
Over
SPLIT PHASE DELAY:
MESSAGE
0.000 s
SPLIT PHASE BLK:
MESSAGE
Off
SPLIT PHASE TARGET:
MESSAGE
Self-Reset
SPLIT PHASE EVENTS:
MESSAGE
Disabled
G30 Generator Protection System

5.6.9 SPLIT PHASE PROTECTION (ANSI 50SP)

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SPLIT PHASE
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: 0.020 to 1.500 pu in steps of 0.001
Range: 0.000 to 1.000 pu in steps of 0.001
Range: 0.0 to 100% in steps of 0.1
Range: 0.020 to 1.500 pu in steps of 0.001
Range: 0.000 to 1.000 pu in steps of 0.001
Range: 0.0 to 100% in steps of 0.1
Range: 0.020 to 1.500 pu in steps of 0.001
Range: 0.000 to 1.000 pu in steps of 0.001
Range: 0.0 to 100% in steps of 0.1
Range: 0.00 to 1.00 pu in steps of 0.01
Range: Over, Over-Under
Range: 0.000 to 65.535 s in steps of 0.001
Range: FlexLogic operand
Range: Self-reset, Latched
,
Range: Enabled Disabled
5 SETTINGS
,
Disabled
GE Multilin