Stephen L Swanson

US Patent:

41421787, Feb 27, 1979

Filed:

Apr 25, 1977

Appl. No.:

5/790228

Inventors:

Ian A. Whyte - Churchill Borough PA
Stephen R. Swanson - Penn Hills PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H04B 356

US Classification:

340310R

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.