Residual current transformer

Details Residual current transformer Residual current transformer

1979-08-30

1981-10-13

Kozma, Thomas J.

Inductor devices

With electric and/or magnetic shielding means

336174, 336178, 336234, H01F 1504, H01F 4006

Patent

active

042951127

ABSTRACT:
A residual current transformer comprises an annular magnetic core which has not a gap nor sectional part crossing said magnetic core but has one or more narrow sectional area parts.

REFERENCES:
patent: 1318787 (1919-10-01), Mollerhoi
patent: 1700689 (1929-01-01), Sparks
patent: 1722167 (1929-07-01), Wilson
patent: 2284406 (1942-05-01), D'Entremont
patent: 3146393 (1964-08-01), Gibbon
patent: 3430175 (1969-02-01), Matsuoka et al.
patent: 4160966 (1979-07-01), Kennedy
Rajchman et al. "The Transfluxor, " Proceedings of the I.R.E vol. 44, Mar. 1956, pp. 321-332.

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