Fault indicator and means for resetting the same

Details Fault indicator and means for resetting the same Fault indicator and means for resetting the same

1976-07-26

1978-04-25

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

324 51, 324133, G01R 1916, G01R 120

Patent

active

040865290

ABSTRACT:
A fault indicator for alternating current distribution systems includes a pair of spaced pole pieces for receiving therebetween at one end the conductor and at the other end a pivoted permanent magnet carrying a target that is biased to a fault indicating position by a stationary permanent magnet. The pole pieces are demagnetized on flow of fault current in the conductor. They are remagnetized by a winding which is energized by discharge of a capacitor that is charged through a rectifier from an oscillator circuit. The winding is carried by a receptacle into which the other ends of the pole pieces are inserted and a circuit is completed thereby to charge the capacitor. The receptacle is carried at one end of a tubular housing the other end of which has an eye to receive a claw of a live line tool for applying the fault indicator to and removing it from the conductor.

REFERENCES:
patent: 3702966 (1972-11-01), Schweitzer, Jr.

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