Method of testing the windings and insulation system of a motor

Details Method of testing the windings and insulation system of a motor Method of testing the windings and insulation system of a motor

1979-10-17

1982-07-20

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

29593, 310 71, 324 54, 361 33, G01R 3106, G01R 3112, H02K 1500, H02H 709

Patent

active

043408532

ABSTRACT:
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).

REFERENCES:
patent: 3564569 (1971-02-01), Nolan
patent: 3694909 (1972-10-01), Hallerback
patent: 3801730 (1974-04-01), Nakata et al.
patent: 3867658 (1975-02-01), Dochterman
patent: 4041543 (1977-08-01), Pasculle et al.
patent: 4110651 (1978-08-01), Fagan

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