GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual page 105

5 SETPOINTS
d) WINDING 1(3) PHASE INSTANTANEOUS OVERCURRENT
PATH: SETPOINTS S4 ELEMENTS
W1 PHASE INST OC 1
[ENTER] for more
• W1(3) PHASE INST OC 1(2) PICKUP: Enter the level of phase current (in units of relay nominal current) above which
the Winding 1(3) Phase Instantaneous Overcurrent 1 element will pickup and start the delay timer.
• W1(3) PHASE INST OC 1(2) DELAY: Enter the time that the phase current must remain above the pickup level before
the element operates.
The setpoint messages above and the following logic diagram are identical for the PHASE INSTANTA-
NEOUS OVERCURRENT 2 element.
NOTE
GE Multilin
Courtesy of NationalSwitchgear.com
PHASE OC W1(3) PHASE INST OC 1(2)
ð
W1 PHASE INST OC 1
ENTER
FUNCTION: Enabled
ESCAPE
W1 PHASE INST OC 1
ESCAPE
TARGET: Latched
MESSAGE
W1 PHASE INST OC 1
ESCAPE
PICKUP: 10.00 x CT
MESSAGE
W1 PHASE INST OC 1
ESCAPE
DELAY: 0 ms
MESSAGE
W1 PHASE INST OC 1
ESCAPE
BLOCK: Disabled
MESSAGE
Figure 5–16: PHASE IOC 1 SCHEME LOGIC
745 Transformer Management Relay
5.6 S4 ELEMENTS
Range: Enabled, Disabled
Range: Self-Reset, Latched, None
Range: 0.05 to 20.00 x CT in steps of 0.01
Range: 0 to 60000 ms in steps of 1
Range: Logc Inpt 1 to 16, Virt Inpt 1 to 16, Output Rly 2 to
8, SelfTest Rly, Vir Outpt 1 to 5, Disabled
5
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