GE 745 TRANSFORMER MANAGEMENT RELAY

5-64 745 Transformer Management Relay GE Power Management
5.6 S4 ELEMENTS 5 SETPOINTS
5
b) WINDING 1 (2/3) NEG. SEQ. INSTANTANEOUS OVERCURRENT
y W1 NEG SEQ INST OC
y
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This message indicates the start of the section describing the characteristics
of the
NEGATIVE SEQUENCE INSTANTANEOUS OVERCURRENT
protection for
Winding 1 (2/3). To continue with these setpoints press , or press
to go to the next section.
W1 NEG SEQ INST OC
FUNCTION: Disabled
Range: Disabled / Enabled
W1 NEG SEQ INST OC
TARGET: Latched
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
never disables the
LED self-test feature because can not generate a displayable target
message.
W1 NEG SEQ INST OC
PICKUP: 10.00 x CT
Range: 0.05 to 20.00 (steps of 0.01)
Enter the level of negative sequence current (in units of relay nominal
current) above which the W1 (2/3) negative sequence instantaneous
overcurrent element will pickup and start the delay timer.
W1 NEG SEQ INST OC
DELAY: 0 ms
Range: 0 to 60000 (steps of 1)
Enter the time that the negative sequence current must remain above the
pickup level before the element operates.
W1 NEG SEQ INST OC
BLOCK: Disabled
Range: Disabled / Logc Inpt 1 (2-16) /Virt Inpt 1 (2-16) / Output Rly 1 (2-8) /
SelfTest Rly / Virt Outpt 1 (2-5)
ENTER
MESSAGE