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S3 PROTECTION
Phase overvoltage (59P)
6–76
The phase OV protection can be used to protect voltage sensitive feeder loads and circuits
against sustained overvoltage conditions. The protection can be used to either cause a
trip, or generate an alarm when the voltage exceeds a specified voltage value for the
specified time delay.
The following path is available using the keypad. For instructions on how to use the
keypad, please refer to Chapter 3 - Working with the Keypad.
PATH:
SETPOINTS > S3 PROTECTION > SETPOINT GROUP 1(2) > PHASE OV
PH OV FUNCTION
Range: Disabled, Alarm, Latched Alarm, Trip
Default: Disabled
For details see
Common
PH OV PKP
Range: 0.00 to 1.25 x VT in steps of 0.01
Default: 1.25 x VT
This setting defines the Phase OV pickup level.
PH OV DELAY
Range: 0.00 to 600.00 sec in steps of 0.01
Default: 2.0 s
This setting specifies the time delay before OV operation.
PH OV PHASES
Range: Any One, Any Two, All Three
Default: Any One
This setting selects the combination of overvoltage conditions with respect to the
number of phase voltages over the overvoltage pickup setting.
OUTPUT RELAY X
For details see
Common
BLOCK 1/2/3
For details see
Common
setpoints.
setpoints.
setpoints.
350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: SETPOINTS
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