Loop fault isolator

Details Loop fault isolator Loop fault isolator

H - Electricity

02

H

324/68

H02H 7/26 (2006.01)

Patent

CA 1232948

ABSTRACT OF THE DISCLOSURE The invention comprises a method and a device for locating, isolating and by-passing a defective electrical device in an electrical circuit, and comprising sensing current and voltage at a first point in such circuit, on one side of such device, whereby the current and voltage at-the first point are not significantly altered by the sensing process, sensing current and voltage at a second point in such circuit, on the other side of such device, whereby the current and voltage at the second point are not significantly altered by the sensing process, comparing such currents and voltages at the two points, creating a control signal responsive to such compared currents and voltages, and, isolating such device from such circuit, and thereafter re-establishing such circuit whereby to by-pass the device, in response to a control signal of predetermined characteristics.

481507

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