High voltage signal coupler for a distribution network power lin

Details High voltage signal coupler for a distribution network power lin High voltage signal coupler for a distribution network power lin

1977-04-25

1979-02-27

Caldwell, Sr., John W.

Communications: electrical

Systems

Selsyn type

307149, 333 70S, 336175, H04B 356

Patent

active

041421787

ABSTRACT:
A high voltage signal coupler couples carrier communication signals between a distribution network primary conductor and communication elements located at spaced intervals on the distribution network. A single bushing, high frequency, coupling capacitor communicates the carrier communication signals between one of the distribution network primary conductors and a conductor which is at ground or real earth potential with respect to power current frequencies. A parallel resonant circuit, formed by a tuning capacitor and a hollow core of magnetic material inductively surrounding the power frequency ground conductor, couples the carrier communication signals to the communication elements connected thereto at a predetermined frequency without interfering with the operation of the ground conductor at the frequency of the power current.

REFERENCES:
patent: 1699806 (1929-01-01), Oppenheimer
patent: 2294735 (1942-09-01), Du Mont
patent: 3924223 (1975-12-01), Whyte et al.
patent: 4016429 (1977-04-01), Vercellotti et al.

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