Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – For fault location
Patent
1989-01-04
1990-08-07
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
For fault location
324509, 324527, G01R 3108
Patent
active
049474693
ABSTRACT:
A resistive fault in an electrical cable is located by applying a DC voltage to one end of the faulted cable conductor. The steady state DC voltage and current are measured at the end of the conductor where the voltage is applied. Simultaneously, the DC voltage is measured at the other end of the cable. The voltage is then reversed in polarity and the measurements repeated. Several repetitions of this procedure at each end of the conductor yields sufficient information to compute the location of the fault with reasonable accuracy. The procedure is carried out using two computer-based units, one at each end of the cable, with the two units communicating over the conductor under test.
REFERENCES:
patent: 3248646 (1966-04-01), Brazee
patent: 3284704 (1966-11-01), Lamont
patent: 4424479 (1984-01-01), Brown
Chamberlain John C.
Lavallee Ronald L.
Sontag Kenneth N.
Vokey David E.
Automated Light Technologies, Inc.
Eisenzopf Reinhard J.
Mueller Robert W.
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