Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1988-02-08
1989-06-13
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324530, 324523, 324522, G01R 3108
Patent
active
048395986
ABSTRACT:
Breaks in the bare neutral conductor of an underground electric cable can be located by applying an alternating signal across the neutral conductor and a phase conductor at one end of the cable. The neutral and phase conductors are connected together at the other end of the cable. The electrical potential of the alternative signal is measured at a series of spaced apart points on the earth's surface along the cable's path. The potential between points over a cable section with an open in the neutral conductor will be about two orders of magnitude greater than the potential between points above good cable section.
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Baver Donald K.
Behrens Edward A.
Calvert Douglas D.
Eisenzopf Reinhard J.
Regan Maura K.
Wisconsin Electric Power Company
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