Abb Inc.

Nathan T Sigman

Robert C Ballard

Rafael Gutierrez

Edgar A Wimmer, Jr

Arc resistant enclosures for dry-type transformers. More particularly, transformer enclosures having one or more arc-resistant features, including arc channels, arc fault dampers, and arc fault plenums, and methods for providing same.

Method of providing arc-resistant dry type transformer enclosure

Arc-resistant dry type transformer enclosure having arc fault damper apparatus

Arc-resistant dry type transformer enclosure having arc channels

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.

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Bastian, VA, United States of America

Nathan T Sigman