Patent ID: 8207457
Filing Date: 2012-06-26
Classification: H01H

Abstract:
1. A reversing switch for a tap changer of a transformer, the reversing switch comprising: a rotatable post; first and second contact structures for connection to a winding of the transformer; a mounting structure for connection to a neutral terminal of the transformer; a third contact structure located closer to the post than the first and second contact structures and the mounting structure; a bus bar connecting the third contact structure to the mounting structure; a movable contact arm secured to the post and movable therewith between first and second positions, the contact arm including a contact assembly mounted to an arm, the contact assembly having one or more outward contacts and one or more inward contacts, the one or more inward contacts engaging the third contact structure and the one or more outward contacts engaging the first contact structure when the contact arm is in the first position and engaging the second contact structure when the contact arm is in the second position; and wherein the first contact structure, the second contact structure and the mounting structure are arranged in an arc, with the first contact structure, the second contact structure and the mounting structure each being located at about the same radial distance from the post.