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Title:
A transformer and the power distribution system using this
Document Type and Number:
Japanese Patent JP6063647
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a transformer capable of stabilizing system voltage by enabling control over a starting current of an AC motor.SOLUTION: In the transformer, a primary winding 2 and a secondary winding 3 are sequentially arranged concentrically at an outer peripheral side of an iron core 1, tap coils 4a, 4b obtained by making continuous conductors to be the desired number of turns are provided between 2 and 3 and at an outer peripheral side, taps A, B, C, D are respectively provided at a winding start and a winding end of 4a, 4b, and at intermediate positions between the winding start and the winding end, being at least two places, the number of turns between A-C is almost the same as the number of turns between B-D, and a short circuit impedance between A-C is different from a short circuit impedance between the taps B-D.

Inventors:
Yasuhiko Tomita
Hiroshi Shioda
Application Number:
JP2012129227A
Publication Date:
January 18, 2017
Filing Date:
June 06, 2012
Export Citation:
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Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
Toshiba Industrial Equipment Systems Co., Ltd.
International Classes:
H01F29/02; H01F27/00; H01F27/28
Domestic Patent References:
JP56008809A
JP42015049B1
JP54118522A
JP62073516U
Attorney, Agent or Firm:
Suzue International Patent Office
Kurata Masatoshi
Takakura Shigeo
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori