Analysis method for liquid-filled electric equipment

  • US 6,691,557 B1
  • Filed: 10/10/2001
  • Issued: 02/17/2004
  • Est. Priority Date: 03/17/2000
  • Status: Expired due to Term
First Claim
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1. A method of evaluating the operation of electrical equipment using a liquid, comprising the steps of:

  • obtaining a sample of the liquid from the electrical equipment;

    analyzing the liquid for particulate components, including the presence of electrical erosion products, to determine a profile of particulates in the liquid, the profile comprising predetermined particulate characteristics; and

    determining an indication of the operating condition of the electrical equipment by analyzing the particulate profile.

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