Method and apparatus for the identification of a faulty conducto

Details Method and apparatus for the identification of a faulty conducto Method and apparatus for the identification of a faulty conducto

1986-12-03

1989-05-23

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

324524, 324539, 324509, 364483, 361 87, G01R 3108, G01R 1900

Patent

active

048334146

ABSTRACT:
A method of and apparatus for determining which if any phase of duplex supply lines wherein each phase w is assigned two conductors w1 and w2. The method and apparatus use an asymmetry value, for example a function of the relationship (output of 9) of the difference Iw1-Iw2 (output of 5) to the sum Iw1+Iw2 (output of 6) of the currents in the conductors w1 and w2. If the asymmetry level exceeds in absolute value a threshold level K(see 12 and 13), the conductor passing the current having the lowest amplitude is indicated as being sound.

REFERENCES:
patent: 4251766 (1981-02-01), Sovillard
patent: 4275429 (1981-06-01), Church et al.
patent: 4513340 (1985-04-01), Drain
patent: 4618779 (1986-10-01), Wiscombe

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