Title:
【発明の名称】超電導発電機および固定子部品
Document Type and Number:
Japanese Patent JPH0773424
Kind Code:
B2
Abstract:
PURPOSE:To provide means for securely grounding a stator corona shield without installing another means while controlling the increase in tooth eddy-current loss due to a large magnetic flux. CONSTITUTION:A semi-conductive plate tooth parts 32 are installed in at least one part of axial arrangement distributions of a generator of a stator tooth made of a non-metallic material. Also, if necessary, a semi-conductive elastic cushion is inserted between a stator coil 4 and a tooth 3, and/or a corona shield 1 is fixed on the tooth 3 using a semi-conductive adhesive. By inserting the semi-conductive tooth parts having the constant number of parts corresponding to a magnetic flux between non-conductive teeth or into tooth ends, a stator coil can be securely grounded while controlling the increase in tooth eddy- current loss. By using the semi-conductive elastic cushion and the semi- conductive adhesive, a ground is secured against, the rush current or the deterioration with age, and the reliability is improved.
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Inventors:
Yutaka Higashimura
Takamura Makoto
Takahashi Mika
Sato Seiki
Takashi Haruta
Yagi Yasuomi
Takamura Makoto
Takahashi Mika
Sato Seiki
Takashi Haruta
Yagi Yasuomi
Application Number:
JP28309992A
Publication Date:
August 02, 1995
Filing Date:
October 21, 1992
Export Citation:
Assignee:
Superconducting power generation related equipment/material technology research association
International Classes:
H02K55/00; (IPC1-7): H02K55/00
Attorney, Agent or Firm:
Unuma Tatsuyuki
Next Patent: PRODUCTION OF FLOATING MAGNETIC HEAD DEVICE