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:
Feb. 19, 2013
Filed:
Feb. 28, 2011
Robert C. Ballard, Wytheville, VA (US);
Nathan T. Sigman, Bastian, VA (US);
Edgar A. Wimmer, Jr., Bland, VA (US);
Rafael Gutierrez, Jr., Wytheville, VA (US);
Robert C. Ballard, Wytheville, VA (US);
Nathan T. Sigman, Bastian, VA (US);
Edgar A. Wimmer, Jr., Bland, VA (US);
Rafael Gutierrez, Jr., Wytheville, VA (US);
ABB Inc., Cary, NC (US);
Abstract
Methods of providing arc resistant switchgear enclosures for dry-type transformers are provided. The enclosures have one or more arc-resistant features, including arc channels, arc fault dampers, and arc fault plenums. In a preferred embodiment, the method comprises providing a base structure with a dry-type transformer seated thereon, providing walls and a roof, wherein at least the front wall contains at least one longitudinal seam covered by an arc channel.