Method and apparatus for increasing the rating of a transformer

  • US 6,787,704 B2
  • Filed: 05/07/2001
  • Issued: 09/07/2004
  • Est. Priority Date: 05/09/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus that provides improved transformer voltage rating, comprising:

  • a transformer bushing for use within a transformer, said busing having;

    an insulating mounting bracket with a first and second shoulder; and

    a conductor which extends through and is molded into said insulating mounting bracket with a first portion for connecting to transformer windings and a second portion for connecting to an external circuit;

    means for enclosing a portion of said conductor and said second shoulder of said insulating mounting bracket with insulating material, wherein a distance between an un-insulated portion of said second portion of said conductor and a wall of the casino of said transformer is greater than without said insulating material; and

    means for extending said second portion of said conductor to provide an extended second portion having a conductor extension attached to said second portion, wherein said means for enclosing encloses both said second portion of said conductor and a portion of said conductor extension.

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