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:
Sep. 09, 1986
Filed:
Mar. 06, 1985
Herbert R Montague, Binghamton, NY (US);
Control Concepts Corporation, Binghamton, NY (US);
Abstract
Three-phase power susceptible of having different line to line input voltages in the wye and delta configurations is converted into a three-phase wye output, each phase of which has the same line to line voltage for all of the predetermined input voltages. A three-phase transformer has a secondary winding connected in a wye configuration. No switches are connected to the secondary winding. A primary winding of the transformer includes, for each phase, first and second coils, each having a single tap between a pair of end terminals. The terminals and taps are selectively connected in series with each other. The end terminals are selectively connected in parallel with each other. In certain of the situations all of first end terminals of first coils for each phase are connected to the line voltages. In others of the situations, predetermined first end terminals and taps of predetermined coils are connected to the line voltages and the first terminals and taps of other coils are connected to a neutral terminal.