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1. (WO2001001426) DUAL-RATED CURRENT TRANSFORMER CIRCUIT

Pub. No.:    WO/2001/001426    International Application No.:    PCT/US2000/017809
Publication Date: Fri Jan 05 00:59:59 CET 2001 International Filing Date: Fri Jun 30 01:59:59 CEST 2000
IPC: H01F 38/32
Applicants: GENERAL ELECTRIC COMPANY
Inventors: DEPUY, Robert, P.
Title: DUAL-RATED CURRENT TRANSFORMER CIRCUIT
Abstract:
A dual-rated current transformer circuit (10) has a first current line (12) which delivers a first current (IA) and a second current line (14) which delivers a second current (IB). A current transformer (20) is coupled to both the first and second current lines, wherein the transformer generates a current proportional to the current of each of the first and second current lines. The circuit can be miniaturized due to the input circuit which lowers the input current to the transformer and design techniques of the transformer which allow for size reduction.