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Method and apparatus for monitoring transformers

  • US 4,654,806 A
  • Filed: 03/30/1984
  • Issued: 03/31/1987
  • Est. Priority Date: 03/30/1984
  • Status: Expired due to Term
First Claim
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1. A method of on-line monitoring of transformer performance, wherein the transformer includes a cooling system, said method comprising the steps of:

  • monitoring at least one parameter related to transformer load;

    collecting periodic load data in response to the monitored parameters related to transformer load;

    monitoring transformer parameters related to transformer condition;

    collecting periodic condition data in response to the monitored parameters related to transformer condition;

    establishing predetermined load threshold values;

    establishing predetermined condition threshold values;

    comparing said periodic load data with said predetermined load threshold values;

    comparing said periodic condition data with said predetermined condition threshold values; and

    evaluating transformer performance in response to the comparison steps.

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