Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1977-01-18
1979-02-20
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 60CD, G01R 3114
Patent
active
041409647
ABSTRACT:
A high voltage breakdown test circuit for testing of insulation resistance within an electrical device is disclosed. Operator safety is attained by allowing a fixed amount of energy considered nonlethal and advantageously imperceptible into the test circuit and by the internal system design. The system elements are connected in series and must all function properly in order to deliver the output signal to the device under test. Each system element obtains its power from the fixed energy input and is thereby activated only during an actual test. Indicator means of the pass/fail type provide an operator with a quick visual indication of the results of an insulation resistance test.
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Eubank Carol H.
Hays Carroll D.
Wickliff Noble E.
Bell Telephone Laboratories Incorporated
Strecker Gerard R.
Williamson S. R.
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