Apparatus and method for initiation of reciprocal remote feeding

Details Apparatus and method for initiation of reciprocal remote feeding Apparatus and method for initiation of reciprocal remote feeding

1980-07-18

1982-12-07

Rubinson, G. Z.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Series-connected sources

307 64, 307 86, 179170J, H04B 344

Patent

active

043629520

ABSTRACT:
Method and apparatus for start-up of reciprocal remote supply feeding of intermediate stations utilizing DC current series feeding. In the operation of remote feeding systems of this type, the switch-on operation for reasons of safety for the individuals, must be accomplished only after testing the remote feeding circuit for freedom of faults. For this purpose the invention provides a test current circuit delivered by one feed circuit which triggers a transmission and delivery of a remote feed current in the other feed circuit which in turn causes in the first feed circuit a change-over switch to operate to switch from test current to remote feed current. The apparatus and method is particularly suitable for the remote feeding of intermediate amplifiers in transmission line sections of communication engineering systems.

REFERENCES:
patent: 2657279 (1953-10-01), Kelly
patent: 3535474 (1970-10-01), Duimelaar
patent: 3639773 (1972-02-01), Ayd et al.
patent: 3868484 (1975-02-01), Bolton et al.

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