GE 269Plus Instruction Manual page 95

Motor management relay
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3 SETUP AND USE
TABLE 3–3: 269PLUS SETPOINTS (SHEET 22 OF 25)
PAGE
LINE INFORMATION LINE
7
6
METER PHASE VT SECONDARY
VT SECONDARY = XXX VOLT
Enter the VT secondary of the voltage transformer connected between the system and the
meter. All under and overvoltage protection is expressed as a percent of this setpoint.
Range: 40 to 240 V in steps of 1 V
Factory Value = 120 volts
7
7
ENABLE U/V TRIP & ALARM
IF AVG. VOLTS=0?
This setpoint should be used if an undervoltage alarm or trip is desired on a dead bus, i.e.
when the average voltage of all three phases is zero.
Range: YES (Enables undervoltage trip & alarm features if the average voltage received
7
8
UNDERVOLTAGE ALARM LEVEL
U/V ALARM = XX %VT
This line sets the threshold for the undervoltage alarm as a percentage of VT primary. The
alarm level programmed here is compared to the average voltage received from the meter.
To detect an undervoltage trip upon complete loss of all three phases, the E N A B L E U / V T R I P &
A L A R M I F A V G . V O L T S = 0 ? setpoint must be set to Y E S .
Range: 30 to 95% of VT or OFF, in steps of 1%
Factory Value = OFF
7
9
U/V ALARM TIME DELAY
TIME DELAY = XXX SEC
This setpoint sets the time that an undervoltage alarm condition must persist in order to
facilitate an alarm.
Range: 1 to 255 seconds in steps of 1 sec.
Factory Value = 10 seconds
7
10
UNDERVOLTAGE TRIP LEVEL
U/V TRIP = XX %VT
This line sets the threshold for the undervoltage trip condition as a percentage of VT primary.
This value is compared to the average voltage received from the meter.
To detect an undervoltage trip upon complete loss of all three phases, the E N A B L E U / V T R I P &
A L A R M I F A V G . V O L T S = 0 ? setpoint must be set to Y E S .
Range: 30 to 95% of VT or OFF, in steps of 1%
Factory Value = OFF
GE Power Management
Courtesy of NationalSwitchgear.com
XXX
from the meter is zero. Reset of an U/V trip or alarm is only possible if the average
voltage goes above the setpoints).
NO (If the bus is de-energized or dead, no undervoltage trip or alarm is issued. If an
undervoltage trip or alarm condition existed prior to the average voltage becoming
zero, these conditions may be reset after the average voltage becomes zero)
269Plus Motor Management Relay
SETPOINTS MODE
3
3-
39

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