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:
Nov. 12, 2002
Filed:
May. 03, 2000
John J. Vithayathil, Portland, OR (US);
Other;
Abstract
A switching scheme that permits a thee phase capacitor bank to have two ratings depending on whether the circuit is connected in delta or star configuration The capacitor per phase consists of two sections. In delta connection the two sections are connected in series. In the star connection the two sections are connected in parallel. Both the changes —the delta connection to the star connection of the circuit and the series connection of the capacitor sections to the parallel connection of the capacitor sections—are accomplished simultaneously by a single switching operation of three star connected switches. In the case of isolated neutral, the number of switches can be reduced from three to two.