Power line carrier communication system for signaling customer l

Details Power line carrier communication system for signaling customer l Power line carrier communication system for signaling customer l

1976-01-16

1977-04-05

Schaefer, Robert K.

Electrical transmission or interconnection systems

Miscellaneous systems

340310R, 340310A, H04B 1302

Patent

active

040164292

ABSTRACT:
Carrier current signals are impressed to and detected from grounding conductors connected to the power system and to real earth ground. The communication links provided by the grounded neutral conductors of the power system and by the real earth ground return path transmit the carrier communication signals between a substation communication terminal and remote communication terminals at the premises of utility company customers. The communication signals are coupled to the ground conductors by transformer-type couplers in which the grounding conductor constitutes one winding of the transformer.

REFERENCES:
patent: 1518683 (1924-12-01), Baker
patent: 3702460 (1972-11-01), Blose
patent: 3911415 (1975-10-01), Whyte

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