GE 469 Instruction Manual page 195

CHAPTER 5: SETTINGS
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
The following two figures illustrate the resultant overload protection curves for 80% and
100% line voltage, respectively. For voltages in between, the 469 will shift the acceleration
curve linearly and constantly based on measured line voltage during a motor start.
1000
900
800
700
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
1
FIGURE 5–12: Voltage Dependent Overload Protection at 80% Voltage
GE Multilin
HIGH INERTIA LOAD OVERLOAD CURVES
8800 HP, 13.2 kV, REACTOR COOLANT PUMP
2 3 4
MULTIPLES OF FULL LOAD AMPS
5 6 7
806825A4.CDR
8
5–53