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:
Mar. 08, 1983
Filed:
Mar. 15, 1982
Chikasa Uenosono, Kyoto, JP;
Takao Okada, Kyoto, JP;
Junya Matsuki, Kyoto, JP;
Tadashi Naito, Kawasaki, JP;
Shinichiro Inoue, Kawasaki, JP;
Yoshizo Obata, Higashi-Sumiyoshi-ku, Osaka-shi, Osaka-fu, JP;
Fuji Electric Co. Ltd., Kanagawa, JP;
Yoshizo Obata, Kanagawa, JP;
Abstract
There is disclosed a system for predicting desynchronization of a synchronous machine by detecting a phenomenon of radical variation of the magnetic flux in the gap of a synchronous machine immediately before falling in an asynchronous state. For example, a functional value of the fundamental harmonic component and that of the higher harmonic component of the flux in the gap are detected for comparing the variation of each functional value with a predetermined reference level to predict desynchronization of the synchronous machine.