Schweitzer Engineering Laboratories SEL-701 - Figure 4.2 Generic Thermal Limit Curves, Cold Motor

Date Code 20010719 701 Motor Protection Relay
Settings Calculation
Basic Motor Protection
4.13
Figure 4.2 Generic Thermal Limit Curves, Cold Motor.
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Time in Seconds
Multiples of Full Load Amps
Time in Cycles 60 Hz (50Hz)
300 (250)
1500 (1250)
3000 (2500)
600 (500)
6000 (5000)
15000 (12500)
30000 (25000)
60000 (50000)
150000 (125000)
300000 (250000)
600000 (500000)
150 (125)
60 (50)
Curve
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