Shunt fault tester for multiconductor cable

Details Shunt fault tester for multiconductor cable Shunt fault tester for multiconductor cable

1981-10-28

1983-08-23

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

1791753R, 1791753F, G01R 3108, H04B 346

Patent

active

044006632

ABSTRACT:
Apparatus, and associated methodology, for locating a resistive shunt fault between wires of a cable utilizes the virtual interconnection property of operational amplifier means (112) to cause the coalescing of geographically separated nodes within the cable system. The various embodiments employ the amplifier means in conjunction with an ohmmeter (111) or current source (114)--voltmeter (113) combination and, when necessary, a good conductor (GOOD) which parallels the wires under test, to produce an estimate of the resistance (R.sub.1) of one wire between the fault point and a measurement position.

REFERENCES:
patent: 3812303 (1974-05-01), Stewart
Maloney: "Locating Cable Faults"-IEEE Trans. on Industry Appl. Jul./Aug. 1973-pp. 380-394.

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