System and method for the identification of phase conductors

Details System and method for the identification of phase conductors System and method for the identification of phase conductors

1987-04-13

1989-07-25

Isen, Forester W.

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

324 66, H04R 2900

Patent

active

048521744

ABSTRACT:
The present invention provides a system for the identification of the phase of conductors in electrical circuits, at junctions location, regardless if the connectors are connected to ground. The system comprises two independent generators connectable to the phase conductors by electromagnetic coupling, and at any available location along these conductors, and generating different audio signals. An appropriate receiver is provided and connected to the phase conductors, at selected locations for the identification of the different audio signals. The present invention also provides a method for the identification of the phase of conductors in an electrical circuit, even when the conductors are connected to ground above the selected location for effecting the identification. The method consists in connecting, by electromagnetic coupling, two independent generators generating different audio signals, in pre-identified phase conductors. At a selected location for the identification of the phase of the conductors, an appropriate receiver is connected to phase conductors and tested two by two to identify their proper phases.

REFERENCES:
patent: 3076931 (1963-02-01), Jasper
patent: 3891811 (1975-06-01), Miller
patent: 4095167 (1978-06-01), Weber
patent: 4112349 (1978-09-01), Weber
patent: 4513246 (1985-04-01), Blain
patent: 4524320 (1985-06-01), Brooks
patent: 4648113 (1987-03-01), Horn et al.
patent: 4656418 (1987-04-01), Boston et al.
patent: 4724381 (1988-02-01), Crimmins
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