Isolation voltage test apparatus

Details Isolation voltage test apparatus Isolation voltage test apparatus

1977-07-27

1979-02-20

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324110, 324158R, G01R 3112, G01R 136

Patent

active

041409655

ABSTRACT:
Disclosed is an apparatus for providing non-destructive isolation voltage testing of circuit elements which includes a controllable full wave rectifier in series with the primary winding of a high voltage transformer, the secondary winding of which is connected to the circuit element under test. A current detector is responsive to a predetermined threshold current in the tested circuit element for providing a signal to control the rectifier to open-circuit the transformer primary winding prior to destructive breakdown of the tested circuit element. Opto-electronic elements are utilized in the rectifier to provide for the virtually instantaneous open-circuiting of the high voltage transformer primary winding.

REFERENCES:
patent: 656680 (1900-08-01), Thomson
patent: 1614147 (1927-01-01), Muller
patent: 3054954 (1962-09-01), Boscia et al.

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