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:
Jun. 26, 1990
Filed:
Jun. 19, 1989
Applicant:
Inventors:
Koichi Kobayashi, Tokyo, JP;
Toyoshi Harada, Tokyo, JP;
Assignee:
Sanyo Denki Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
307 87 ; 307 84 ; 322 16 ;
Abstract
A flat frequency, constant voltage power source device provided for parallel operation of a plurality of electric generators is arranged to have a starting sequence determination means which automatically determines which one of the electric generators is to be started initially and places the remaining ones of the electric generators sequentially into the parallel operation with the initially started generator, the plurality of the electric generators sequentially satisfying conditions for their parallel operation and being smoothly placed in parallel operation.