THREE-PHASE COLLECTIVE CURRENT TRANSFORMER

摘要

PROBLEM TO BE SOLVED: To simplify a mechanism which supports first - third hollow coil in a pressure chamber to reduce dimensions of a current transformer. SOLUTION: First - third coil insertion grooves 13a-13c are formed in a flat-plate-shaped metal adaptor 11 and first - third Rogowsky coils 3a-3c are provided in the first - third coil insertion grooves 13a-13c. An interphase magnetic shield 14 and an outer circumferential magnetic shield 15 are fixed to the metal adaptor 11 and an end magnetic shield 16 is fixed to the interphase magnetic shield 14.