Maintaining Mechanical Integrity of Electric Motors Through the Repair Process

In the first article, we discussed the negative effect on energy efficiency from using burnout ovens as part of the motor repair process. The most significant damage is done by high burnout heat to the core plating on the laminations which are destroyed. Damage to the insulation between laminations of magnetic steel making up the stator core, causes more loss-producing eddy currents, poorer efficiency, higher operating temperature, and shorter life.

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