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EN 60076-2:2011

Current
Current

The latest, up-to-date edition.

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

04-01-2011

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

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.

Committee
CLC/TC 14
DevelopmentNote
Supersedes HD 398.2. (11/2009)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current
Supersedes

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

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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