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  • BS 5800:1979

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    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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    Guide for the interpretation of the analysis of gases in transformers and other oil-filled electrical equipment in service

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  15-06-1999

    Language(s):  English

    Published date:  31-10-1979

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    National foreword
    Cooperating organizations
    1 Introduction
    2 Scope
    3 Recommended basic method for interpreting gas
         analysis
    3.1 Gases generated from oil
    3.2 Levels at which dissolved gases are significant
    3.3 Diagnosis of faults from relative concentrations of
         individual gases dissolved in oil
    4 Degradation of cellulosic insulation
    4.1 Examining CO2 and CO concentrations found dissolved
         in oil
    4.2 Examining CO2 and CO concentrations in free gases
         found in the gas-collecting relay
    5 Application of diagnostic method to free gases in
         a gas-collecting relay
    5.1 Calculation of dissolved gas concentrations
         equivalent to free gas concentrations
    Appendix
    A Information obtained from rates of gas production

    Abstract - (Show below) - (Hide below)

    Describes the means by which the concentrations of dissolved gases or free gases previously removed from the oil by the techniques described in BS 5574, may be interpreted to diagnose the condition of a transformer in service and suggest future action.

    General Product Information - (Show below) - (Hide below)

    Committee GEL/10
    Development Note IMPLEMENTS CENELEC HD 397
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 61203:1995 Synthetic organic esters for electrical purposes. Guide for maintenance of transformer esters in equipment
    BS 7354:1990 Code of practice for design of high-voltage open-terminal stations
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