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:
Apr. 02, 2013
Filed:
Aug. 29, 2007
Applicants:
Gunnar Asplund, Solna, SE;
Björn Jacobson, Grangesberg, SE;
Inventors:
Gunnar Asplund, Solna, SE;
Björn Jacobson, Grangesberg, SE;
Assignee:
ABB Technology AG, Zürich, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high voltage dry-type reactor is series-connected via a first terminal to an AC supply voltage and via a second terminal to the AC phase terminal of a high voltage converter and includes a cylindrical coil of insulated wire. In order to protect the reactor from a damaging DC field, the reactor further includes a metallic or resistive electrostatic shield which is connected to a same DC potential as the converter.