GE 469

GE Power Management 469 Motor Management Relay 1-7
1 INTRODUCTION 1.2 SPECIFICATIONS
1
CURRENT UNBALANCE
Unbalance: I
2
/I
1
if I
avg
> FLA
I
2
/I
1
× I
avg
/FLA if I
avg
< FLA
Range: 0 to 100% UB in steps of 1
Pickup Level: 4 to 40% UB in steps of 1
Time Delay: 1 to 60 s in steps of 1
Pickup Accuracy: ±2%
Timing Accuracy: ±0.5 s or ± 0.5% of total time
Elements: Trip and Alarm
GROUND INSTANTANEOUS
Pickup Level: 0.1 to 1.0 × CT primary in steps of 0.01
Time Delay: 0 to 1000 ms in steps of 10
Pickup Accuracy: as per Ground Current Input
Timing Accuracy: +50 ms
Elements: Trip and Alarm
PHASE DIFFERENTIAL INSTANTANEOUS
Pickup Level: 0.05 to 1.0 × CT primary in steps of 0.01
of any one phase
Time Delay: 0 to 1000 ms in steps of 10
Pickup Accuracy: as per Phase Differential Current Inputs
Timing Accuracy: +50 ms
Elements: Trip
ACCELERATION TIMER
Pickup: transition of no phase current to > over-
load pickup
Dropout: when current falls below overload pickup
Time Delay: 1.0 to 250.0 s in steps of 0.1
Timing Accuracy: ±100 ms or ± 0.5% of total time
Elements: Trip
JOGGING BLOCK
Starts/Hour: 1 to 5 in steps of 1
Time Between Starts: 1 to 500 min.
Timing Accuracy: ±0.5 s or ± 0.5% of total time
Elements: Block
RESTART BLOCK
Time Delay: 1 to 50000 s in steps of 1
Timing Accuracy: ±0.5 s or ± 0.5% of total time
Elements: Block
RTD
Pickup: 1 to 250°C in steps of 1
Pickup Hysteresis:2°C
Time Delay: 3 s
Elements: Trip and Alarm
UNDERVOLTAGE
Pickup Level:
Motor Starting: 0.60 to 0.99 × Rated in steps of 0.01
Motor Running: 0.60 to 0.99 × Rated in steps of 0.01
of any one phase
Time Delay: 0.1 to 60.0 s in steps of 0.1
Pickup Accuracy: as per Voltage Inputs
Timing Accuracy: <100 ms or ±0.5% of total time
Elements: Trip and Alarm
OVERVOLTAGE
Pickup Level: 1.01 to 1.10 × Rated in steps of 0.01 of
any one phase
Time Delay: 0.1 to 60.0 s in steps of 0.1
Pickup Accuracy: as per Voltage Inputs
Timing Accuracy: ±100 ms or ±0.5% of total time
Elements: Trip and Alarm
VOLTAGE PHASE REVERSAL
Configuration: ABC or ACB phase rotation
Timing Accuracy: 500 to 700 ms
Elements: Trip
FREQUENCY
Required Voltage:> 30% of full scale in Phase A
Overfrequency Pickup: 25.01 to 70.00 in steps of 0.01
Underfrequency Pickup: 20.00 to 60.00 in steps of 0.01
Accuracy: ±0.02 Hz
Time Delay: 0.1 to 60.0 s in steps of 0.1
Timing Accuracy: <100 ms or ±0.5% of total time
Elements: Trip and Alarm
REDUCED VOLTAGE START
Transition Level: 25 to 300% FLA in steps of 1
Transition Time: 1 to 250 s in steps of 1
Transition Control: Current, Timer, Current and Timer
REMOTE SWITCH
Configurable: Assignable to Digital Inputs1 to 4
Timing Accuracy: 100 ms max.
Elements: Trip and Alarm
SPEED SWITCH
Configurable: Assignable to Digital Inputs1 to 4
Time Delay: 1.0 to 250.0 s in steps of 0.1
Timing Accuracy: 100 ms max.
Elements: Trip
LOAD SHED
Configurable: Assignable to Digital Inputs1 to 4
Timing Accuracy: 100 ms max.
Elements: Trip