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1. (WO2017154361) STATIONARY INDUCTION ELECTRICAL APPARATUS

Pub. No.:    WO/2017/154361    International Application No.:    PCT/JP2017/001623
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Jan 20 00:59:59 CET 2017
IPC: H01F 30/10
H01F 27/30
H01F 27/32
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: SATAKE Takahiro
佐竹 誉大
SASAKI Koji
佐々木 康二
FUKUYAMA Tetsuya
福山 哲也
NISHIMIZU Akira
西水 亮
Title: STATIONARY INDUCTION ELECTRICAL APPARATUS
Abstract:
The objective of the invention is to suppress, in a stationary induction electrical apparatus equipped with an iron core having a rectangular cross-section, the deformation of a coil during a short circuit. In order to achieve this objective, a transformer serving as the stationary induction electrical apparatus according to the present invention comprises: an iron core 1 having a rectangular cross section; and an inner coil 3 and an outer coil 4, whereof the circling shape assumes an angular form or a race track form. Disposed between the inner coil 3 and the outer coil 4 is an inter-internal-external-coil supporting member 5 for supporting the outer periphery 34 of the inner coil 3 and the inner periphery 44 of the outer coil 4. The inter-internal-external-coil supporting member 5 has a corner supporting member 6 abutting corner portions 32, 42.