Apparatus for monitoring current levels in an a.c. transmission

Details Apparatus for monitoring current levels in an a.c. transmission Apparatus for monitoring current levels in an a.c. transmission

1983-04-04

1985-09-10

Levy, Stewart J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

324 52, 361 63, 361 87, G01R 3108

Patent

active

045409390

ABSTRACT:
An apparatus for monitoring current levels at adjacent zones along an a.c. transmission line is provided by current transformers at said zones, the secondaries of the transformers being connected in a series circuit such that currents induced in the secondaries are all in the same direction in said series circuit. Resistors are connected between a common connection of the series circuit and respective interconnections between the transformer secondaries. Devices are provided for monitoring the voltages across the resistors.

REFERENCES:
patent: 3686531 (1972-08-01), Decker et al.
patent: 4110808 (1978-08-01), Hobson, Jr. et al.

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