Cable shield fault location using a capacitive-inductive coupler

Details Cable shield fault location using a capacitive-inductive coupler Cable shield fault location using a capacitive-inductive coupler

1979-12-17

1982-04-13

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324127, G01R 3111

Patent

active

043250220

ABSTRACT:
Apparatus, and associated methodology, for testing shielded, multipair cables to detect shield and bonding faults comprises: means (20) for inductively coupling excitation source (10) to pair grouping (16); and means (50) for capacitively coupling grouping (16) to detect excitation source (10) and the signal reflected from the faults and to provide the detected signals to detector (70), which is interposed between shield (15) and capacitive means (50). Detector (70) provides fault location capability by indicating the time difference between preselected characteristics of the source and correspondingly selected characteristics of the reflected signal.

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Maloney, Chas., "Locating Cable Faults", IEEE Transactions on Industry Applications, vol. 1A-9, No. 4, Jul./Aug., 1973, pp. 380-394.

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