Means for automatically compensating DC magnetization in a trans

Details Means for automatically compensating DC magnetization in a trans Means for automatically compensating DC magnetization in a trans

1979-04-25

1981-07-14

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

323357, 324110, G01R 120, G01R 1124

Patent

active

042789400

ABSTRACT:
Apparatus for providing automatic compensation of direct current magnetization of a current transformer in an alternating current watthour meter utilizing a magnetic field sensor and electronic circuitry to keep the transformer operating in its linear region when a DC component is superimposed on an AC current being provided to the transformer.

REFERENCES:
patent: 3089999 (1963-05-01), Dortort
patent: 3323056 (1967-05-01), Haley
patent: 3665125 (1972-05-01), Valbonesi
patent: 3708749 (1973-01-01), Bateman et al.
patent: 3921069 (1975-11-01), Milkovic
patent: 4096363 (1978-06-01), Earp

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