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  • IEC TR 62874:2015

    Current The latest, up-to-date edition.

    Guidance on the interpretation of carbon dioxide and 2-furfuraldehyde as markers of paper thermal degradation in insulating mineral oil

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English, English - French

    Published date:  05-05-2015

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Significance
    4 Monitoring protocol
    5 Typical values of paper ageing symptoms
    6 Estimation of paper thermal degradation and ageing rate
    7 Actions
    Annex A (informative) - Typical values tables
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC TR 62874:2015 is a Technical Report which provides guidance for the estimation of consumed thermal life of transformers' cellulosic insulators, through the analysis of some compound dissolved in the insulating mineral oil. A comparison between analytical results of 2-furfural (2-FAL) and carbon oxides and their correspondent typical values estimated for different families of equipment gives information on the estimated thermal degradation of papers.

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

    Committee TC 10
    Development Note Stability date: 2023. (05/2015)
    Document Type Technical Report
    Publisher International Electrotechnical Committee
    Status Current

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60076-7:2005 Power transformers - Part 7: Loading guide for oil-immersed power transformers
    IEC 60599:2015 Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis
    IEC 60450:2004+AMD1:2007 CSV Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials
    IEEE C57.91-2011 REDLINE IEEE Guide for Loading Mineral-Oil-Immersed Transformers and Step-Voltage Regulators
    IEC 60567:2011 Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
    IEC 60970:2007 Insulating liquids - Methods for counting and sizing particles
    IEC 60666:2010 Detection and determination of specified additives in mineral insulating oils
    IEC 60814:1997 Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration
    IEC 61198:1993 Mineral insulating oils - Methods for the determination of 2-furfural and related compounds
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