C Setpoints - GE 745 TRANSFORMER MANAGEMENT RELAY Instruction Manual

5.6 S4 ELEMENTS
c) SETPOINTS
The Winding 1 Restricted Ground Fault setpoints are shown below:
S W1 RESTD GND FAULT
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W1 RESTD GND FAULT
FUNCTION: Disabled
W1 RESTD GND FAULT
TARGET: Latched
W1 RESTD GND FAULT
PICKUP: 0.08 x CT
W1 RESTD GND FAULT
SLOPE: 10%
W1 RESTD GND FAULT
5
DELAY: 0.10 s
W1 RESTD GND FAULT
BLOCK: Disabled
5-62
Here is the start of the RESTRICTED GROUND FAULT section for Winding 1 (2/3).
To continue with these setpoints press
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Range: Disabled / Enabled
Range: Self-reset / Latched / None
Select None to inhibit the display of the target message when the element
operates. Thus an element whose "target type" is None will never disable the
LED self-test feature because can not generate a displayable target
message.
Range: 0.05 to 20.00 (steps of 0.01)
Enter the minimum level of ground differential current (in units of relay
nominal current) for the W1 (2/3) restricted ground fault element.
Range: 0 to 100 (steps of 1)
Enter a slope percentage (of ground differential current to maximum line
current).
Range: 0.00 to 600.00 (steps of 0.01)
Enter the time that the W1 (2/3) restricted ground fault element must remain
picked up before the element operates.
Range: Disabled / Logc Inpt 1 (2-16) /Virt Inpt 1 (2-16) / Output Rly 1 (2-8) /
SelfTest Rly / Virt Outpt 1 (2-5)
745 Transformer Management Relay
5 SETPOINTS
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E N TE R M E SSA G E
GE Power Management