Line fault discriminator

Details Line fault discriminator Line fault discriminator

1981-08-24

1986-08-12

Schreyer, Stafford D.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 52, H04B 346

Patent

active

046058273

ABSTRACT:
An auxiliary test system for use with a long transmission line such as one having a telephone at an end thereof whereby from a remote central test station a line may be tested for a short between wires, an open, an abnormal load condition or reversed connections and the relative location of such a fault condition determined.

REFERENCES:
patent: 3754221 (1973-08-01), Stelter
patent: 3757169 (1973-09-01), Beresnikow
patent: 3816816 (1974-06-01), Schweitzer, Jr.
patent: 3868665 (1975-02-01), Treglown
patent: 3912882 (1925-10-01), Beerbaum
patent: 3969711 (1976-07-01), Ahntholz
patent: 4415779 (1983-11-01), Bowman

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