GE 469 Instruction Manual page 190

Note
5–46
GE Multilin
6500 HP, 13800 VOLT INDUCED DRAFT FAN MOTOR
10000
1000
100
10
1.0
0.1
MULTIPLE OF FULL LOAD CURRENT SETPOINT
During the interval of discontinuity, the longer of the two trip times is used to reduce the
chance of nuisance tripping during motor starts.
TYPICAL CUSTOM CURVE
1
PROGRAMMED 469 CUSTOM CURVE
2
RUNNING SAFETIME (STATOR LIMIT)
3
ACCELERATION SAFETIME (ROTOR LIMIT)
4
MOTOR CURRENT at 100% VOLTAGE
5
MOTOR CURRENT at 80% VOLTAGE
1
2
3
4
5
FIGURE 5–7: Custom Curve Example
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
806803A6.CDR