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
Содержание MOTOR MANAGEMENT RELAY 469
Страница 2: ......
Страница 4: ......
Страница 12: ......
Страница 22: ......
Страница 50: ......
Страница 142: ......
Страница 240: ......
Страница 254: ......
Страница 272: ......
Страница 286: ......
Страница 290: ......
Страница 294: ......
Страница 298: ......
Страница 300: ......
Страница 302: ......