GE 750 Instruction Manual page 210

S5 PROTECTION
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LINE
UNDERVOLTAGE 3
5 - 84
FIGURE 5–28: Bus Undervoltage Logic
Line Undervoltage
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PATH: SETPOINTS S5 PROTECTION
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MESSAGE
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MESSAGE
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Line undervoltage 3 and 4 are identical protection elements that generate outputs in
response to an undervoltage condition on the line voltage input. The time delay
characteristic can be programmed as either definite time or inverse time. A minimum
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VOLTAGE LINE UNDERVOLT AGE 3(4)
LINE UNDERVOLT 3
FUNCTION: Disabled
LINE UNDERVOLT 3
RELAYS (3-7): -----
LINE UNDERVOLT 3
PICKUP: 0.75 x VT
LINE UNDERVOLT 3
CURVE: Definite Time
LINE UNDERVOLT 3
DELAY: 2.0 s
MIN OPERATING
VOLTAGE: 0.30 x VT
750 FEEDER MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
Range: Disabled, Trip, Alarm,
Latched Alarm,
Range: Any combination of 3
to 7 Auxiliary relays
Range: 0.00 to 1.25 x VT in
steps of 0.01
Range: Definite Time, Inverse
Time.
Range: 0.0 to 6000.0 s in
steps of 0.1
Range: 0.00 to 1.25 x VT in
steps of 0.01