Power cable arcing fault detection system

Details Power cable arcing fault detection system Power cable arcing fault detection system

1989-12-19

1991-09-10

Wieder, Kenneth A.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

324521, 324 77R, 324 77B, 324 72, 379 26, 364576, G01R 3102

Patent

active

050477242

ABSTRACT:
A system for detecting an arcing fault in a telephone central office DC power distribution conductor repeatedly measures the current flow in the distribution line, as with an inductive coupling, and derives a Fourier transform analysis spectrum from such measurements. The power values at intervals across the frequency spectrum are compared with recorded threshold template values encompassing the spectrum typical of an arcing event and an alarm condition is established when such threshold levels are exceeded.

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patent: 3882287 (1975-05-01), Simmonds
patent: 3904839 (1975-09-01), Peoples
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patent: 4191921 (1980-03-01), Yoshino
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patent: 4630228 (1986-12-01), Tarezy-Hornoch et al.
patent: 4775839 (1988-10-01), Kosina
patent: 4823228 (1989-04-01), Bittner
patent: 4897607 (1990-01-01), Grunewald

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