Transformer Overload - GE 745 TRANSFORMER MANAGEMENT RELAY Instruction Manual

5.6 S4 ELEMENTS
This section contains the settings to configure the transformer overload monitoring element.
S XFORMER OVERLOAD
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TRANSFORMER OVERLOAD

FUNCTION: Disabled
TRANSFORMER OVERLOAD
TARGET: Self-reset
TRANSFORMER OVERLOAD
PICKUP: 208% rated
TRANSFORMER OVERLOAD
DELAY: 10 s
TRANSFORMER OVERLOAD
5
BLOCK: Disabled
XFMR OVERTEMP ALARM
SIGNAL: Disabled
5-78
This message indicates the start of the TRANSFORMER OVERLOAD section. To
continue these setpoints press
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 never disables the
LED self-test feature since it cannot generate a displayable target message.
Range: 50 to 300 (steps of 1)
Enter the transformer loading (in terms of the percent of rated load) above
which the transformer overload element will pickup and start the delay timer.
Range: 0 to 60000 (steps of 1)
Enter the time that the transformer loading must remain above the pickup
level 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)
Range: Disabled / Logc Inpt 1 (2-16)
Select any logic input that, when asserted, indicates the transformer cooling
system has failed and an over-temperature condition exists. The logic input
should be connected to the transformer winding temperature alarm contacts.
745 Transformer Management Relay
5.6.19 TRANSFORMER OVERLOAD
or press for the next section.
E N TE R
M E SSA G E
GE Power Management
5 SETPOINTS