Automatic short circuit tester control device

Details Automatic short circuit tester control device Automatic short circuit tester control device

1987-10-05

1989-03-07

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324509, 324551, 340650, G01R 3112, G01R 3102

Patent

active

048109720

ABSTRACT:
A method and apparatus for testing the insulation between a conductor and ground by means of a device having two input terminals for measuring the resistance between the conductor and ground, by: connecting one terminal of the device to ground; testing the continuity of the connection established between the one terminal of the device and ground; connecting the other terminal of the device to the conductor; applying a voltage between the conductor and ground and measuring the impedance therebetween while the voltage is being applied; and after the step of testing, conductively connecting the conductor to ground for discharging any charge capacitively stored in the conductor.

REFERENCES:
patent: 3771098 (1973-11-01), Dempsey
patent: 3836844 (1974-09-01), Prugh
patent: 3922600 (1975-11-01), Roveti
patent: 4160947 (1979-07-01), Tanno
patent: 4200104 (1980-04-01), Harris
patent: 4204154 (1980-05-01), Rosier
patent: 4225819 (1980-09-01), Grau
patent: 4670707 (1987-06-01), Allard
patent: 4734651 (1988-03-01), Keller

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