GE 745 TRANSFORMER MANAGEMENT RELAY User Manual

5-38 745 Transformer Management Relay GE Power Management
5.4 S2 SYSTEM SETUP 5 SETPOINTS
5
5.4.7 VOLTAGE INPUT
The 745 provides a voltage input for the purposes of energization detection (for the ENERGIZATION INHIBIT
feature of the percent differential element), overexcitation protection (the VOLTS-PER-HERTZ 1 and 2 func-
tions), and frequency protection (the UNDERFREQUENCY, the FREQUENCY DECAY and the OVERFRE-
QUENCY functions). Note that the frequency elements will use Winding 1, phase A current input if voltage is
not available.
y VOLTAGE INPUT
y [ENTER] for more
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VOLTAGE INPUT
section. To continue
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VOLTAGE SENSING:
Disabled
Range: Disabled / Enabled
Enter
Enabled
when connecting a voltage transformer to this input.
VOLTAGE INPUT
PARAMETER: W1 Van
Range: W1 Van / W1 Vbn / W1 Vcn / W1 Vab / W1 Vbc / W1 Vca / W2 Van
/ W2 Vbn / W2 Vcn / W2 Vab / W2 Vbc / W2 Vca / W3 Van / W3 Vbn
/ W3 Vcn / W3 Vab / W3 Vbc / W3 Vca
Enter the winding and phase of the voltage connected to the voltage input.
NOMINAL VT SECONDARY
VOLTAGE: 120.0 V
Range: 60.0 to 120.0 (steps of 0.1)
Enter the nominal secondary voltage (in volts) of the voltage transformer.
VT RATIO:
1000:1
Range: 1 to 5000 (steps of 1)
Enter the ratio of the voltage transformer.
ENTER
MESSAGE

GE 745 TRANSFORMER MANAGEMENT RELAY Specifications

General

Brand	GE
Model	745 TRANSFORMER MANAGEMENT RELAY
Category	Relays
Language	English