How to Handle a Hot Running Motor?
Causes of excessive heat in the winding can be either external or internal to the motor. External causes include high ambient temperature, contaminants, mechanical overload, high inertia loads, high- or low-supply voltage, or unbalanced voltages. Causes of excessive winding temperature internal to the motor include contaminants that build up in the motor or that block ventilation passages and missing or damaged air deflectors or fans.
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