| 摘要 |
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. |
