GE 889 - Page 362

4–232 889 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
PROTECTION CHAPTER 4: SETPOINTS
PICKUP
Range: 0.00 to 3.00 x VT in steps of 0.01 x VT
Default: 1.50 x VT
This setting sets the auxiliary overvoltage pickup level specified per times VT.
For example, a Pickup setting of 1.10 x VT with 13800:115 VT translates into 15.08kV (or
126.5V secondary).
CURVE
Range: Definite Time, Inverse Time, FlexCurves A/B/C/D
Default: Definite Time
This setting provides the selection of curves for the overvoltage as definite time, inverse
time overvoltage curves or FlexCurves.
PICKUP DELAY
Range: 0.000 - 6000.000s in steps of 0.001s
Default: 1.000s
DROPOUT DELAY
Range: 0.000 to 6000.000 s in steps of 0.001 s
Default: 1.000 s
RESET RATE
Range: 0.000 to 6000.000 s in steps of 0.001 s
Default: 1.40 s
The reset rate is a linear reset time from the threshold of trip.
BLOCK
Range: Off, Any FlexLogic operand
Default: Off
OUTPUT RELAY X
For details see Common Setpoints
.
EVENTS
Range: Enabled, Disabled
Default: Enabled
TARGETS
Range: Disabled, Self-reset, Latched
Default: Self-reset