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. 29, 1998
Filed:
Jul. 14, 1997
Satoru Ihara, Burnt Hills, NY (US);
General Electric Company, New York, NY (US);
Abstract
Apparatus and method to separate the harmonic problems in the load side circuit of an electrical power distribution system from the source side circuit of a source transformer in a reliable and economical manner. The electrical power distribution system includes at least a source of AC electrical power, a load, and the connection from the source to the load including a source transformer, electrical conductors, wires, or cables. A part of the load is the non-linear load which injects harmonics. A harmonic blocking filter, comprised of an existing source transformer and a series combination of an auxiliary transformer and a capacitor, is connected in parallel with the source transformer. The MVA rating of the auxiliary transformer is chosen to be equal or smaller than the MVA rating of the source transformer, and the leakage impedance of the auxiliary transformer is chosen to be equal or larger than the impedance of the source transformer.