5–54
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
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.
FIGURE 5–12: Voltage Dependent Overload Protection at 80% Voltage
1
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
10
20
30
40
50
60
7
0
80
9
0
100
HIGH INERTIA LOAD OVERLOAD CURVES
8800 HP, 13.2 kV, REACTOR COOLANT PUMP
TIME
T
O
TRIP
(SECONDS)
MULTIPLES OF FULL LOAD AMPS
200
300
400
500
600
7
00
800
9
00
1000
GE Multilin
806825A4.CDR
Summary of Contents for Masoneilan 469 Series
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Page 92: ...3 28 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 3 INSTALLATION ...
Page 256: ...5 112 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 5 SETTINGS ...
Page 298: ...6 42 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 6 ACTUAL VALUES ...
Page 321: ...CHAPTER 8 APPENDIX 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL 8 9 808712A1 CDR ...
Page 330: ...8 18 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 8 APPENDIX ...