Analog Input - GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual

6.3 A2 METERING
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LOSS OF LIFE
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The
HOTTEST-SPOT WINDING TEMPERATURE
rent. The
INSULATION AGING FACTOR
displays the total equivalent service hours of the transformer.
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ANALOG INPUT

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The 745 provides the ability to monitor any external quantity via an auxiliary current input called the Analog Input. The
scaled value of the analog input is shown. In this message, the name programmed in
ANALOG INPUT NAME
SETUP ANALOG INPUT
6
PATH: ACTUAL VALUES
W1 POWER
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The 745 calculates and displays real, reactive, and apparent power as well as the power factor for all of the available wind-
ings providing that the voltage sensing is enabled. Power flowing into the power transformer is designated as source power
and power flowing out of the transformer is designated as load power.
The messages above are repeated for Windings 2 and 3.
6-12
Courtesy of NationalSwitchgear.com
A2 METERING LOSS OF LIFE
ð
HOTTEST-SPOT WINDING
ENTER
TEMPERATURE:
ESCAPE
INSULATION AGING
ESCAPE
FACTOR:
MESSAGE
TOTAL ACCUM LOSS OF
ESCAPE
LIFE: 0.00 hours
MESSAGE
is calculated from the ambient temperature and the highest-load winding cur-
is calculated from the hottest-spot temperature. The
A2 METERING ANALOG INPUT
ð
ANALOG INPUT:
ENTER
0 µA
ESCAPE
is displayed instead of
ANALOG INPUT
are displayed instead of "µA" (which is the factory default).
ANALOG INPUT UNITS
A2 METERING POWER
ð
W1 REAL POWER:
ENTER
0 MW
ESCAPE
W1 REACTIVE POWER:
ESCAPE
0 Mvar
MESSAGE
W1 APPARENT POWER:
ESCAPE
0 MVA
MESSAGE
W1 POWER FACTOR:
ESCAPE
0.00
MESSAGE
745 Transformer Management Relay
1°C
0.0
(the factory default), and the units programmed in
W1(3) POWER
6 ACTUAL VALUES
6.3.8 LOSS OF LIFE
TOTAL ACCUM LOSS OF LIFE
6.3.9 ANALOG INPUT
S2 SYSTEM SETUP ANALOG INPUT
S2 SYSTEM
6.3.10 POWER
GE Multilin
value