Title:
ROTOR OF SUPERCONDUCTIVE ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JPH01126156
Kind Code:
A
Abstract:
PURPOSE:To promote both functions of a shield and a damping by constituting a damper by widening an interval between conductive bars at a field magnetic pole side in comparison with that between conductive bars at an interpole side. CONSTITUTION:A superconductive rotary electric machine is constituted of a damper 1 consisting of a plurality of conductive bars and a metallic supporting cylinder ic etc., a superconductive field coil 2 and a coil mounting shaft 3, and the damper 1 forms a squirrel-cage type electric circuit. The damper 1 is equipped with conductive bars 11a having a wider mutual interval at a magnetic pole side and with conductive bars 11b having a narrower mutual interval at an interpole side. Accordingly, for example, the current to be induced to the damper 1 by a fluctuating field applied in the field direction passes a low resistance current path provided closely to the interpole side and consisting of the conductive bars 11b, so that the current value increases and the shield effect is effective. Accordingly, the value of the field current rising at the time of power fluctuation is controlled, and the superconductive state is maintained.
Inventors:
HIRAO TOSHIKI
Application Number:
JP28160387A
Publication Date:
May 18, 1989
Filing Date:
November 06, 1987
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02K55/04; (IPC1-7): H02K55/04
Attorney, Agent or Firm:
Masuo Oiwa (2 outside)
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