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:
Aug. 23, 2016
Filed:
Sep. 15, 2011
Torbjörn Haugland, Bergen, NO;
Torbjörn Haugland, Bergen, NO;
Rolls-Royce Marine AS Power Electric Systems Bergen, Bergen, NO;
Abstract
Method and device for starting a motor () in weak grids, especially asynchronous motors, which motor after start-up is supplied by a supply grid (). The device () includes a frequency converter (), which is rated in relation to the size of the motor () and arranged to bring the motor () up in speed, arranged to synchronize output voltage with voltage from the supply grid (), and arranged for connecting the motor () to the supply grid () after the voltage of the motor is synchronized with the voltage of the supply grid (). The main object is to do this with as low costs as possible and in the most space-saving manner.