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Scope

This guide applies to mineral-oil-immersed transformers and addresses: 1) The theory of combustible gas generation in a transformer; 2) The interpretation of gas analysis; 3) Suggested operating procedures; 4) Various diagnostic techniques, such as key gases, Dornenberg ratios, and Rogers ratios; 5) Instruments for detecting and determining the amount of combustible gases present; 6) A bibliography of related literature

Abstract

Revision Standard - Inactive-Withdrawn. Detailed procedures for analyzing gas from gas spaces or gas-collecting devices as well as gas dissolved in oil are described. The procedures cover: (1) the calibration and use of field instruments for detecting and estimating the amount of combustible gases present in gas blankets above oil, or in gas detector relays; (2) the use of fixed instruments for detecting and determining the quantity of combustible gases present in gas-blanketed equipment; (3) obtaining samples of gas and oil from the transformer for laboratory analysis; (4) laboratory methods for analyzing the gas blanket and the gases extracted from the oil; and (5) interpreting the results in terms of transformer serviceability. The intent is to provide the operator with positive and useful information concerning the serviceability of the equipment. An extensive bibliography on gas evolution, detection, and interpretation is included.
 

Document History

  1. IEEE C57.104-2019


    IEEE Guide for the Interpretation of Gases Generated in Mineral Oil-Immersed Transformers

    • Most Recent
  2. IEEE C57.104


    IEEE Draft Guide for the Interpretation of Gases Generated in Oil-Immersed Transformers

    • Historical Version
  3. IEEE C57.104-2008


    IEEE Guide for the Interpretation of Gases Generated in Oil-Immersed Transformers

    • Historical Version
  4. IEEE C57.104-1991

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    IEEE Guide for the Interpretation of Gases Generated in Oil-Immersed Transformers

    • Historical Version
  5. IEEE C57.104-1978


    IEEE Guide for the Detection and Determination of Generated Gases in Oil-Immersed Transformers and Their Relation to the Serviceability of the Equipment

    • Historical Version