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:
May. 27, 2014
Filed:
Jan. 03, 2012
Nicklas Södö, Vaasa, FI;
Risto Komulainen, Klaikkala, FI;
Nicklas Södö, Vaasa, FI;
Risto Komulainen, Klaikkala, FI;
Vacon Oyj, Vaasa, FI;
Abstract
Apparatus for transferring power between an electricity network (U) operating on alternating-current electricity and a multiphase electric machine (M2, M3), which apparatus comprises low-voltage power cells (C, C. . . C) operating on a cascade principle, which power cells comprise a single-phase output connector (OUT), and at least one transformer (T, T. . . T), comprising for each power cell connected to it a single-phase or multiphase winding dedicated to the specific power cell, which transformer comprises at least one additional winding (W, W. . . W) connected to the same magnetic circuit as the other windings for the purpose of at least one auxiliary circuit, which can be connected to the aforementioned additional winding.