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. 12, 2001
Filed:
Sep. 30, 1999
Applicant:
Inventor:
Shripad Tambe, Baden, CH;
Assignee:
Asea Brown Boveri AG, Baden, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/70 ;
U.S. Cl.
CPC ...
G05F 1/70 ;
Abstract
In a method for stabilizing a power supply network against fluctuations of the reactive power of an electrical system, in particular of an arc furnace (,), having at least one transformer (,), the at least one transformer (,) is switched on and off on the supply network side in switching sequences which result in a fundamental-frequency power factor with a value at least approximately equal to 1. The fundamental-frequency reactive power is thus at least approximately equal to zero.