Title:
ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JPH04299051
Kind Code:
A
Abstract:
PURPOSE: To monitor the insulated state of the stator winding of a rotary electric machine during the operation of the machine by providing a partial discharge monitoring device in the rotary electric machine.
CONSTITUTION: A metallic electrode 16 is formed on the surface of an insulated stator winding 5 to be provided in a rotary electric machine and the electrode 16 on the surface of the winding 5 is earthed to a stator frame 3 through a detection circuit 17, and then, lead wires are led from the detection circuit 17 to the outside of a stator. Therefore, the insulated state of the stator winding can be easily, safely, and accurately monitored during the operation of the rotary electric machine.
Inventors:
SUMITA AKIRA
INOUE MASASHI
KITAMURA SHIGEO
INOUE MASASHI
KITAMURA SHIGEO
Application Number:
JP6290191A
Publication Date:
October 22, 1992
Filing Date:
March 27, 1991
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G01R31/06; G01R31/12; G01R31/34; G08B21/00; H02K11/00; (IPC1-7): G01R31/06; G01R31/12; G01R31/34; G08B21/00; H02K11/00
Attorney, Agent or Firm:
Soga Doteru (6 people outside)