Current transformer for a compensating current sensor

Details Current transformer for a compensating current sensor Current transformer for a compensating current sensor

2006-06-06

2006-06-06

Nguyen, Tuyen T (Department: 2832)

Inductor devices

Interlinked coils or windings

Reexamination Certificate

active

07057485

ABSTRACT:
Addressed is a current transformer comprising a primary conductor, a secondary winding and a soft-magnetic core, whereby the primary conductor and secondary winding are electrically insulated from one another and are magnetically intercoupled via the core. In addition, a current to be detected is injected into the primary conductor, and a compensating current is injected into the secondary winding. An additional conductor is provided which is electrically connected in parallel to the primary winding, and which is situated in the area of the core at which a flux rise occurs, whereby the flux rise is at least partially compensated for by the flux elicited by the current flowing in the additional conductor.

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patent: WO 91-19305 (1991-05-01), None

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