Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1978-04-24
1980-08-19
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 60C, G01R 3112, G01R 3102
Patent
active
042186498
ABSTRACT:
A circuit is disclosed for testing electrical apparatus to detect leakage and voltage breakdown failure paths and, furthermore, to indicate if the impedances in the paths are below predetermined levels and thereby to characterize the type and nature of the failure. A feature of the circuit is the use of a high voltage test source which has sufficient internal impedance to prevent hazardous currents if a user should accidentally come into contact with the source output.
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Bell Telephone Laboratories Incorporated
Logan Hugh L.
Newman Harry L.
Strecker Gerard R.
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