GEH-6385 Reference and Troubleshooting, 2300 V Drives Chapter 3 Paramters/Functions
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The following graphs show the time a motor of each of the protection classes can
operate before reaching trip conditions. The time is a function of the load applied to
the motor. The first graph assumes the motor was not running before the overload
condition was applied. The second graph assumes the motor was running
continuously at rated current.