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Title:
ROTOR FOR ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JPS5513622
Kind Code:
A
Abstract:
PURPOSE:To detect the crack of an interpole connector without stopping running a rotary electric machine, by fitting two poles with a detector of the same flexibility as the interpole connector so that the detector is insulated from the poles, attaching lead wires to the detector and measuring the change in the resistance of the detector. CONSTITUTION:The detector 6, which is made by laminating thin copper sheets with one another and has the same flexibility as the interpole connector 3, is fitted on the ends of field windings 2 so that the detector is insulated from the windings. The lead wires 7 are attached to the ends of the detector 6. A signal current is caused to flow through the detector. The crack of the flexible part of the detector 6 can be detected in terms of the change in the resistance of the detector. The crack of the curved part 5 of the interpole connector 3 can be detected through the detector 6 without stopping running the machine. The interpole connector 3 is thus prevented from being broken.

Inventors:
OOTAKA TOORU
Application Number:
JP8409678A
Publication Date:
January 30, 1980
Filing Date:
July 12, 1978
Export Citation:
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International Classes:
H02K11/00; (IPC1-7): H02K11/00