Current sensing transducer for power line current measurements

Details Current sensing transducer for power line current measurements Current sensing transducer for power line current measurements

1978-07-11

1980-01-08

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

323 6, 324126, G01R 120, G01R 1900

Patent

active

041829824

ABSTRACT:
A current sensing transducer includes a conductive current divider including a branch path for conducting a fractional current proportional to a current to be sensed and being applied through the divider. A compensated transformer includes a primary circuit responsive to the fractional current and two secondary windings. An amplifier circuit controls the current input to one secondary winding in response to the output of the other secondary winding so that the flux of the primary circuit is virtually compensated in the core and the secondary winding current is a measure of the current to be sensed.

REFERENCES:
patent: 2428613 (1947-10-01), Boyajian
patent: 3343084 (1967-09-01), Gambale et al.
patent: 3372334 (1968-03-01), Fenoglio et al.
patent: 3539908 (1970-11-01), Zelina
patent: 3764908 (1973-10-01), Elms
patent: 3864631 (1975-02-01), Zitelli
patent: 3916310 (1975-10-01), Stark et al.
patent: 4077061 (1978-02-01), Johnston et al.

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