The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2021
Filed:
Feb. 09, 2017
Applicant:
Mitsubishi Power, Ltd., Yokohama, JP;
Inventors:
Assignee:
Mitsubishi Power, Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 11/27 (2016.01); G01R 31/12 (2020.01); G01R 31/34 (2020.01); H02K 5/22 (2006.01);
U.S. Cl.
CPC ...
H02K 11/27 (2016.01); G01R 31/1272 (2013.01); G01R 31/343 (2013.01); H02K 5/22 (2013.01);
Abstract
The present invention provides a rotating electric machine and a method of detecting electric discharge (a defect detection method for a rotating electric machine), which are able to early detect vibration sparking between a stator winding and a stator core. A rotating electric machine of the present invention comprises a cylindrical stator including a stator core and a stator winding, a rotor disposed inside the stator, at least one key bar disposed on an outer periphery of the stator core and extended in an axial direction of the stator, and at least one current detector disposed on the key bar and configured to measure a current flowing in the key bar.