Mcneil

William J Ekey

John L Braun

Denver W Smith

An electrically surge protected motor having a submersible housing (10) can be manufactured and tested for insulation weaknesses by first assembling the motor components in the housing (10) without completing a path to ground therethrough. Then the windings (11, 12) of the motor may be subjected to a voltage surge greater than the voltage magnitude at which the motor is to be surge protected. After completion of the test, a path to ground through an impedance device (17) which establishes the voltage magnitude at which the motor is to be protected may be completed. Several alternative grounding devices (23, 24, 25, 26 or 28) may be provided externally of the housing (10).

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Ashland, OH, United States of America

William J Ekey