Aggregate current transformer

Details Aggregate current transformer Aggregate current transformer

1995-07-06

1996-11-19

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 45, 335281, 336177, 336221, 336233, H02H 316, H01F 1704

Patent

active

055769217

ABSTRACT:
A sum current transformer that acts on a protective switch via an amplifier has a core of a solid metallic material composed of an alloy having more than 40% nickel, so that it can be implemented mechanically solid even given small dimensions. The temperature dependency of the arrangement caused by the ohmic resistance of the winding is compensated by the diminishing eddy currents in the core given increasing temperature, so that the smallest dimensions can be realized for the aggregate current transformer.

REFERENCES:
patent: 5235488 (1993-08-01), Koch

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