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  • EN 60076-2:2011

    Current The latest, up-to-date edition.

    Power transformers - Part 2: Temperature rise for liquid-immersed transformers

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    Language(s): 

    Published date:  01-04-2011

    Publisher:  European Committee for Standards - Electrical

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

    FOREWORD
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Cooling methods
    5 Normal cooling conditions
    6 Temperature rise limits
    7 Temperature rise tests
    Annex A (informative) - Hot-spot winding temperature
            rise determination for OFAF and OFWF cooled
            transformers based on the top-liquid temperature
            in tank
    Annex B (informative) - Methods to estimate the hot-spot
            winding temperature rises
    Annex C (informative) - Techniques used in temperature rise
            testing of liquid-immersed transformers
    Annex D (informative) - Dissolved gases analysis for the
            detection of local overheating
    Annex E (informative) - Application of optical fibre sensors for
            winding hot-spot measurements
    Bibliography
    Annex ZA (normative) - Normative references to international
             publications with their corresponding European
             publications

    Abstract - (Show below) - (Hide below)

    IEC 60076-2:2011 applies to liquid-immersed transformers, identifies power transformers according to their cooling methods, defines temperature rise limits and gives the methods for temperature rise tests. This new edition includes the following significant technical changes with respect to the previous edition: - the winding hot-spot temperature rise limit was introduced among the prescriptions; - the procedures for the temperature rise test were improved in relation to the new thermal requirements; - five informative annexes were added in order to facilitate the implementation of this standard.

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

    Committee CLC/TC 14
    Development Note Supersedes HD 398.2. (11/2009)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Current
    Supersedes

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

    BS EN 60076-11:2004 Power transformers Dry-type transformers
    BS EN 60076-13:2006 Power transformers Self-protected liquid-filled transformers
    BS EN 50329 : 2003 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - TRACTION TRANSFORMERS
    I.S. EN 60726:2003 DRY-TYPE POWER TRANSFORMERS
    CEI EN 60076-14 : 2014 POWER TRANSFORMERS - PART 14: LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
    CEI EN 60076-11 : 2006 POWER TRANSFORMERS - PART 11: DRY-TYPE TRANSFORMERS
    UNE-EN 50541-1:2012 Three phase dry-type distribution transformers 50 Hz, from 100 kVA to 3 150 kVA, with highest voltage for equipment not exceeding 36 kV - Part 1: General requirements
    UNE-EN 61378-1:2012 Convertor transformers -- Part 1: Transformers for industrial applications
    BS EN 60076-6:2008 Power transformers Reactors
    CEI EN 61378-2 : 2002 CONVERTOR TRANSFORMERS - PART 2: TRANSFORMERS FOR HVDC APPLICATIONS
    I.S. EN 60076-11:2004 POWER TRANSFORMERS - PART 11: DRY-TYPE TRANSFORMERS
    I.S. EN 62271-212:2017 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 212: COMPACT EQUIPMENT ASSEMBLY FOR DISTRIBUTION SUBSTATION (CEADS)
    I.S. EN 60296:2012 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR (IEC 60296:2012 (EQV))
    I.S. EN 60076-14:2013 POWER TRANSFORMERS - PART 14: LIQUIDIMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS (IEC 60076-14:2013 (EQV))
    UNE-EN 62271-212:2017 High-voltage switchgear and controlgear - Part 212: Compact Equipment Assembly for Distribution Substation (CEADS)
    BS EN 12111:2014 Tunnelling machines. Road headers and continuous miners. Safety requirements
    EN 16191:2014 Tunnelling machinery - Safety requirements
    HD 637 S1:1999/corrigendum:2005 POWER INSTALLATIONS EXCEEDING 1 KV A.C.
    EN 60076-11:2004 Power transformers - Part 11: Dry-type transformers
    EN 62271-212:2017 High-voltage switchgear and controlgear - Part 212: Compact Equipment Assembly for Distribution Substation (CEADS)
    EN 50541-1:2011 Three phase dry-type distribution transformers 50 Hz, from 100 kVA to 3 150 kVA, with highest voltage for equipment not exceeding 36 kV - Part 1: General requirements
    EN 62271-202:2014/AC:2014 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 202: HIGH-VOLTAGE/LOW-VOLTAGE PREFABRICATED SUBSTATION (IEC 62271-202:2014)
    EN 61378-1:2011 Convertor transformers - Part 1: Transformers for industrial applications
    EN 60726:2003 Dry-type power transformers
    10/30233949 DC : 0 BS EN 12111 - TUNNELLING MACHINES - ROAD HEADERS, CONTINUOUS MINERS AND IMPACT RIPPERS - SAFETY REQUIREMENTS
    BS EN 60076-14:2013 Power transformers Liquid-immersed power transformers using high-temperature insulation materials
    UNI EN 16191 : 2014 TUNNELLING MACHINERY - SAFETY REQUIREMENTS
    BS EN 50541-1:2011 Three phase dry-type distribution transformers 50 Hz, from 100 kVA to 3150 kVA, with highest voltage for equipment not exceeding 36 kV General requirements
    BS EN 16191:2014 Tunnelling machinery. Safety requirements
    UNE-EN 60076-14:2014 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
    CEI EN 60076-16 : 2012 POWER TRANSFORMERS - PART 16: TRANSFORMERS FOR WIND TURBINES APPLICATIONS
    I.S. EN 60076-13:2006 POWER TRANSFORMERS - PART 13: SELF-PROTECTED LIQUID-FILLED TRANSFORMERS
    I.S. EN 50299:2004 OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT U[M] FROM 72.5 KV TO 550 KV
    I.S. EN 62271-202:2014 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 202: HIGH-VOLTAGE/LOW-VOLTAGE PREFABRICATED SUBSTATION
    I.S. HD 637:1999 POWER INSTALLATIONS EXCEEDING 1 KV A.C.
    CEI EN 61378-1 : 2012 CONVERTOR TRANSFORMERS - PART 1: TRANSFORMERS FOR INDUSTRIAL APPLICATIONS
    I.S. EN 12111:2014 TUNNELLING MACHINES - ROAD HEADERS AND CONTINUOUS MINERS - SAFETY REQUIREMENTS
    VDE 0532-42 : 2001 CONVERTOR TRANSFORMERS - PART 2: TRANSFORMERS FOR HVDC APPLICATIONS
    BS EN 60296:2012 Fluids for electrotechnical applications. Unused mineral insulating oils for transformers and switchgear
    CEI EN 50541-1 : 2011 THREE PHASE DRY-TYPE DISTRIBUTION TRANSFORMERS 50 HZ, FROM 100 KVA TO 3150 KVA, WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - PART 1: GENERAL REQUIREMENTS
    DIN EN 16191:2014-09 TUNNELLING MACHINERY - SAFETY REQUIREMENTS
    BS EN 50327:2003 Railway applications. Fixed installations. Harmonisation of the rated values for converter groups and tests on converter groups
    CEI EN 60310 : 2016 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK
    I.S. EN 60310:2016 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK
    I.S. EN 60076-19:2015 POWER TRANSFORMERS - PART 19: RULES FOR THE DETERMINATION OF UNCERTAINTIES IN THE MEASUREMENT OF THE LOSSES ON POWER TRANSFORMERS AND REACTORS
    I.S. EN 50541-1:2011 THREE PHASE DRY-TYPE DISTRIBUTION TRANSFORMERS 50 HZ, FROM 100 KVA TO 3150 KVA, WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - PART 1: GENERAL REQUIREMENTS
    PREN 50541-1 : DRAFT 2009 THREE PHASE DRY-TYPE DISTRIBUTION TRANSFORMERS 50 HZ, FROM 100 TO 3150 KVA, WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - PART 1: GENERAL REQUIREMENTS AND REQUIREMENTS FOR DRY TYPE TRANSFORMERS WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV
    UNE-EN 60076-19:2016 Power transformers - Part 19: Rules for the determination of uncertainties in the measurement of the losses on power transformers and reactors
    EN 61936-1 : 2010 AMD 1 2014 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES (IEC 61936-1:2010/A1:2014)
    I.S. EN 60076-6:2008 POWER TRANSFORMERS - PART 6: REACTORS
    CEI EN 60296 : 2013 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR
    UNE-EN 62271-202:2015 High-voltage switchgear and controlgear - Part 202: High-voltage/low-voltage prefabricated substation
    EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    EN 50532:2010 Compact Equipment Assembly for Distribution Substations (CEADS)
    UNI EN 12111 : 2014 TUNNELLING MACHINES - ROAD HEADERS AND CONTINUOUS MINERS - SAFETY REQUIREMENTS
    09/30211604 DC : 0 BS EN 50541-1 - THREE PHASE DRY-TYPE DISTRIBUTION TRANSFORMERS 50 HZ, FROM 100 TO 3150 KVA, WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - PART 1: GENERAL REQUIREMENTS AND REQUIREMENTS FOR DRY TYPE TRANSFORMERS WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV
    DIN EN 16191 E : 2014 TUNNELLING MACHINERY - SAFETY REQUIREMENTS
    BS EN 60470:2001 High-voltage alternating current contactors and contactor-based motor starters
    I.S. EN 50532:2010 COMPACT EQUIPMENT ASSEMBLY FOR DISTRIBUTION SUBSTATIONS (CEADS)
    BS EN 60076-16:2011 Power transformers Transformers for wind turbines applications
    BS EN 61378-1:2011 Convertor transformers Transformers for industrial applications
    EN IEC/IEEE 65700 : 2018 BUSHINGS FOR DC APPLICATION (IEC/IEEE 65700-19-03:2014)
    UNE-EN 60076-16:2012 Power transformers - Part 16: Transformers for wind turbines applications
    BS EN 60076-1:2011 Power transformers General
    BS EN 60726:2003 Dry-type power transformers
    BS EN 60310:2016 Railway applications. Traction transformers and inductors on board rolling stock
    I.S. EN 16191:2014 TUNNELLING MACHINERY - SAFETY REQUIREMENTS
    CEI EN 60076-1 : 2015 POWER TRANSFORMERS - PART 1: GENERAL
    CEI EN 60076-6 : 2015 POWER TRANSFORMERS - PART 6: REACTORS
    I.S. EN 61936-1:2010 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    BS EN 62271-212:2017 High-voltage switchgear and controlgear Compact Equipment Assembly for Distribution Substation (CEADS)
    BS EN 50532:2010 Compact equipment assembly for distribution substations (CEADS)
    UNE-EN 60076-1:2013 Power transformers - Part 1: General
    09/30202403 DC : 0 BS EN 50532 - COMPACT EQUIPMENT ASSEMBLY FOR DISTRIBUTION SUBSTATIONS (CEADS)
    UNE-EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    UNE-EN 50532:2011 Compact Equipment Assembly for Distribution Substations (CEADS)
    BS EN 61936-1 : 2010 POWER INSTALLATIONS EXCEEDING 1 KV A.C - PART 1: COMMON RULES
    UNE-EN 61936-1:2012 Power installations exceeding 1 kV a.c. -- Part 1: Common rules
    EN 60076-16:2011 Power transformers - Part 16: Transformers for wind turbines applications
    CEI EN 60076-13 : 2007 POWER TRANSFORMERS - PART 13: SELF PROTECTED LIQUID FILLED TRANSFORMERS
    I.S. EN 50327:2003 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - HARMONISATION OF THE RATED VALUES FOR CONVERTER GROUPS AND TESTS ON CONVERTER GROUPS
    BS EN 61800-4:2003 Adjustable speed electrical power drive systems General requirements. Rating specifications for a.c. power drive systems above 1000 V a.c. and not exceeding 35 kV
    BS EN 60076-19:2015 Power transformers Rules for the determination of uncertainties in the measurement of the losses on power transformers and reactors
    I.S. EN 60076-16:2011 POWER TRANSFORMERS - PART 16: TRANSFORMERS FOR WIND TURBINES APPLICATIONS (IEC 60076-16:2011)
    I.S. EN 50329:2007 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - TRACTION TRANSFORMERS
    I.S. EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    I.S. EN IEC/IEEE 65700:2018 BUSHINGS FOR DC APPLICATION
    I.S. EN 61378-1:2011 CONVERTOR TRANSFORMERS - PART 1: TRANSFORMERS FOR INDUSTRIAL APPLICATIONS (IEC 61378-1:2011)
    CEI EN 61800-4 : 2003 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 4: GENERAL REQUIREMENTS - RATING SPECIFICATIONS FOR A/C/ POWER DRIVE SYSTEMS ABOVE 1000 V A.C. AND NOT EXCEEDING 35 KV
    I.S. EN 61800-4:2003 ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS - PART 4: GENERAL REQUIREMENTS - RATING SPECIFICATIONS FOR A.C. POWER DRIVE SYSTEMS ABOVE 1000 V A.C. AND NOT EXCEEDING 35 KV
    BS EN 62271-202:2014 High-voltage switchgear and controlgear High-voltage/low-voltage prefabricated substation
    EN 50327 : 2003 AMD 1 2005 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - HARMONISATION OF THE RATED VALUES FOR CONVERTER GROUPS AND TESTS ON CONVERTER GROUPS
    EN 50329:2003/A1:2010 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - TRACTION TRANSFORMERS
    EN 60076-6:2008 Power transformers - Part 6: Reactors
    EN 60076-13 : 2006 POWER TRANSFORMERS - PART 13: SELF-PROTECTED LIQUID-FILLED TRANSFORMERS
    EN 60076-19:2015 Power transformers - Part 19: Rules for the determination of uncertainties in the measurement of the losses on power transformers and reactors
    EN 61800-4:2003 Adjustable speed electrical power drive systems - Part 4: General requirements - Rating specifications for a.c. power drive systems above 1 000 V a.c. and not exceeding 35 kV
    EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    EN 12111:2014 Tunnelling machines - Road headers and continuous miners - Safety requirements
    EN 60310:2016/AC:2018-03 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK (IEC 60310:2016/COR1:2018)
    EN 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials

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

    IEC 60076-7:2005 Power transformers - Part 7: Loading guide for oil-immersed power transformers
    EN 60085:2008 Electrical insulation - Thermal evaluation and designation
    IEC 60599:2015 Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis
    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 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
    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 GUIDE 115:2007 Application of uncertainty of measurement to conformity assessment activities in the electrotechnical sector
    EN 61181:2007/A1:2012 MINERAL OIL-FILLED ELECTRICAL EQUIPMENT - APPLICATION OF DISSOLVED GAS ANALYSIS (DGA) TO FACTORY TESTS ON ELECTRICAL EQUIPMENT (IEC 61181:2007/A1:2012)
    IEC 60076-1:2011 Power transformers - Part 1: General
    CLC/TR 50462:2008 Rules for the determination of uncertainties in the measurement of the losses on power transformers and reactors
    EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    IEC 61181:2007+AMD1:2012 CSV Mineral oil-filled electrical equipment - Application of dissolved gas analysis (DGA) to factory tests on electrical equipment
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