• IEC TS 60076-14:2009

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Power transformers - Part 14: Design and application of liquid-immersed power transformers using high-temperature insulation materials

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

    Superseded date:  16-09-2013

    Language(s):  English, Spanish, Castilian

    Published date:  13-05-2009

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Insulation materials
       4.1 General
       4.2 Ageing and lifetime of insulation materials
       4.3 Solid insulation
       4.4 Wire enamel insulation
       4.5 Insulating liquids
    5 Insulation systems
       5.1 General
       5.2 Insulation system types
            5.2.1 Homogeneous high-temperature insulation
                   system
            5.2.2 Hybrid insulation system
            5.2.3 Semi-hybrid insulation system
            5.2.4 Mixed insulation system
    6 Temperature limits
    7 Transformer accessories and compatibility
       7.1 General
       7.2 Bushings
       7.3 Tap-changer
       7.4 Gasket material
       7.5 Tank painting
       7.6 Coolers
       7.7 Pumps
       7.8 Tank and conservator
       7.9 Adhesives
       7.10 Current transformers
       7.11 Temperature gauges and indicators
       7.12 Protective relays
       7.13 Auxiliary cables
    8 Special design considerations
       8.1 Short-circuit considerations
       8.2 Dielectric requirements
       8.3 Temperature requirements
       8.4 Overload
       8.5 Effects of harmonic currents
       8.6 Liquid preservation system
    9 Required information
       9.1 Information to be provided by the purchaser
            9.1.1 Ambient temperatures and loading cycle
            9.1.2 Harmonic currents
            9.1.3 Other unusual service conditions
       9.2 Information to be provided by the manufacturer
            9.2.1 Thermal characteristics
            9.2.2 Reference temperature
            9.2.3 Guarantees
    10 Rating plate and additional information
       10.1 Rating and warning plates
            10.1.1 Rating plate
            10.1.2 Warning plate
       10.2 Transformer manual
    11 Testing
       11.1 General
       11.2 Requirements for routine, type and special tests
            11.2.1 General
            11.2.2 Routine tests
            11.2.3 Type tests
            11.2.4 Special tests
       11.3 Temperature-rise test
            11.3.1 General
            11.3.2 Evaluation of temperature-rise tests for
                   mixed insulation systems
       11.4 Dielectric type tests
    12 Supervision, diagnostics, and maintenance
       12.1 General
       12.2 Transformers filled with mineral insulating oil
       12.3 Transformers filled with high-temperature insulating
            liquids
    Annex A (informative) Calculation of bubble generation
            temperature
    Annex B (informative) A perspective of transformer
            temperatures from Tables 4 and 5
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 60076-14:2009(E) provides specification, design, testing and loading information for use by both the manufacturer and user of liquid-immersed power transformers employing either high-temperature insulation or combinations of high-temperature and conventional insulation. Is applicable to:
    - power transformers designed in accordance with IEC 60076-1,
    - convertor transformers designed to IEC 61378 series,
    - arc furnace transformers,
    - and covers the use of various liquid and solid insulation combinations. This new edition includes the following significant technical changes with respect to the previous edition:
    - enhancement of insulation system descriptions;
    - clarification of temperature rise limits
    - and the addition of overload temperature limits.

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

    Committee TC 14
    Development Note Stability Date: 2013. (10/2012)
    Document Type Technical Specification
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By
    Supersedes

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

    BS EN 61039 : 2008 CLASSIFICATION OF INSULATING LIQUIDS
    09/30187488 DC : DRAFT AUG 2009 BS EN 60076-16 - POWER TRANSFORMERS - PART 16: TRANSFORMERS FOR WIND TURBINES APPLICATION
    13/30256030 DC : 0 BS IEC 62695 ED 1.0 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - TRACTION TRANSFORMERS
    17/30347375 DC : 0 BS EN 62368-1 ED 3.0 - AUDIO/VIDEO; INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    BS EN 61378-1 : 2011 CONVERTOR TRANSFORMERS - PART 1: TRANSFORMERS FOR INDUSTRIAL APPLICATIONS
    BS EN 60076-1 : 2011 POWER TRANSFORMERS - PART 1: GENERAL
    UNE-EN 61378-1:2012 Convertor transformers -- Part 1: Transformers for industrial applications
    BIS IS 13503 : 2013 CLASSIFICATION OF INSULATING LIQUIDS
    CEI EN 61039 : 2009 CLASSIFICATION OF INSULATING LIQUIDS
    12/30275045 DC : 0 BS EN 60076-15 - POWER TRANSFORMERS - PART 15: GAS-FILLED POWER TRANSFORMER
    06/30157625 DC : 0 BS EN 61039 - GENERAL CLASSIFICATION OF INSULATING LIQUIDS
    08/30178668 DC : DRAFT FEB 2008 BS EN 61378-1 - CONVERTER TRANSFORMERS - PART 1: TRANSFORMERS FOR INDUSTRIAL APPLICATIONS
    DD IEC TS 62332-1 : 2011 ELECTRICAL INSULATION SYSTEMS (EIS) - THERMAL EVALUATION OF COMBINED LIQUID AND SOLID COMPONENTS - PART 1: GENERAL REQUIREMENTS
    NF EN 61039 : 2008 CLASSIFICATION OF INSULATING LIQUIDS
    I.S. EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    I.S. EN 61378-1:2011 CONVERTOR TRANSFORMERS - PART 1: TRANSFORMERS FOR INDUSTRIAL APPLICATIONS (IEC 61378-1:2011)
    CEI EN 60076-1 : 2015 POWER TRANSFORMERS - PART 1: GENERAL
    I.S. EN 61039:2008 CLASSIFICATION OF INSULATING LIQUIDS
    CEI EN 61378-1 : 2012 CONVERTOR TRANSFORMERS - PART 1: TRANSFORMERS FOR INDUSTRIAL APPLICATIONS
    IEC TS 62332-1:2011 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 1: General requirements
    IEC 61378-1:2011 Converter transformers - Part 1: Transformers for industrial applications
    IEC 61039:2008 Classification of insulating liquids
    UNE-EN 60076-1:2013 Power transformers - Part 1: General
    IEC 60076-1:2011 Power transformers - Part 1: General
    EN 61378-1:2011 CONVERTOR TRANSFORMERS - PART 1: TRANSFORMERS FOR INDUSTRIAL APPLICATIONS (IEC 61378-1:2011)
    EN 61039 : 2008 CLASSIFICATION OF INSULATING LIQUIDS
    EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)

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

    ISO 2719:2016 Determination of flash point Pensky-Martens closed cup method
    IEC 60076-7:2005 Power transformers - Part 7: Loading guide for oil-immersed power transformers
    IEEE 62 : 1995 GUIDE FOR DIAGNOSTIC FIELD TESTING OF ELECTRIC POWER APPARATUS - OIL FILLED POWER TRANSFORMERS, REGULATORS, AND REACTORS
    IEC TS 62332-1:2011 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 1: General requirements
    IEC 61039:2008 Classification of insulating liquids
    IEC 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
    IEC 60050-212:2010 International Electrotechnical Vocabulary (IEV) - Part 212: Electrical insulating solids, liquids and gases
    IEC 60599:2015 Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis
    IEC 60076-5:2006 Power transformers - Part 5: Ability to withstand short circuit
    IEC 61100 : 1.0 CLASSIFICATION OF INSULATING LIQUIDS ACCORDING TO FIREPOINT AND NET CALORIFIC VALUE
    IEC 60567:2011 Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
    IEC 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
    IEC 60076-4:1976 POWER TRANSFORMERS - PART 4: GUIDE TO THE LIGHTNING IMPULSE AND SWITCHING IMPULSE TESTING - POWER TRANSFORMERS AND REACTORS
    IEC 60505:2011 Evaluation and qualification of electrical insulation systems
    IEC 60076-8:1997 Power transformers - Part 8: Application guide
    IEC 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
    IEC 60085:2007 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
    IEC 60296:2012 RLV FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR
    IEC 61629-1:1996 ARAMID PRESSBOARD FOR ELECTRICAL PURPOSES - PART 1: DEFINITIONS, DESIGNATIONS AND GENERAL REQUIREMENTS
    IEC 60970:2007 Insulating liquids - Methods for counting and sizing particles
    IEC 60076-3:2013 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
    IEC 60076-1:2011 Power transformers - Part 1: General
    IEC 60944:1988 Guide for the maintenance of silicone transformer liquids
    IEC 60867:1993 Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons
    IEC 61378-2:2001 CONVERTOR TRANSFORMERS - PART 2: TRANSFORMERS FOR HVDC APPLICATIONS
    IEC 61378-3:2015 Converter transformers - Part 3: Application guide
    IEC 60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
    IEC 61203:1992 Synthetic organic esters for electrical purposes - Guide for maintenance of transformer esters in equipment
    IEEE 1276 : 1997 TRIAL-USE GUIDE FOR THE APPLICATION OF HIGH TEMPERATURE INSULATION MATERIALS IN LIQUID-IMMERSED POWER TRANSFORMERS
    IEEE C57.147 : 2008 ACCEPTANCE AND MAINTENANCE OF NATURAL ESTER FLUIDS IN TRANSFORMERS
    IEC 60216-1:2013 Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results
    IEC 61378-1:2011 Converter transformers - Part 1: Transformers for industrial applications
    IEC 60851-4:2016 Winding wires - Test methods - Part 4: Chemical properties
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