Current transformer with plural part core

Details Current transformer with plural part core Current transformer with plural part core

1993-04-23

1995-03-21

Kozma, Thomas J.

Inductor devices

Core surrounding linear conductor

336184, 336210, 336212, 336233, H01F 1706, H01F 4006

Patent

active

054000068

ABSTRACT:
A current transformer comprising a primary conductor means 20, secondary conductor means in the form of a first and second coil 21, 22 connected to ensure common-mode rejection of emf induced by external disturbing magnetic fields, and magnetic coupling means defined by first and second magnetic plates 23, 24 and first and second ferrite elements 25, 26 arranged within the first and second coils 21, 22, the elements 25, 26 contacting and physically separating the first and second plates 23, 24, thereby defining a closed magnetic circuit with the plates.

REFERENCES:
patent: 1415505 (1922-05-01), Angus
patent: 2148641 (1939-02-01), Reich
patent: 2175934 (1939-10-01), Wentz
patent: 3258657 (1966-06-01), Peuron et al.
patent: 3525964 (1970-08-01), Stevenson
patent: 4471271 (1984-09-01), Wendt
patent: 4800356 (1989-01-01), Ellis
patent: 4864486 (1989-09-01), Spreen
Current Transformers, "Influence of Leakage Flux Under Various Conditions," Forrest, Electrical Review, Jul. 9, 1948, pp. 51-54.

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