• EN 60076-11 : 2004

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 11: DRY-TYPE TRANSFORMERS

    Available format(s): 

    Superseded date:  29-01-2022

    Language(s): 

    Published date:  13-01-2013

    Publisher:  European Committee for Standards - Electrical

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

    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Service conditions
       4.1 General
       4.2 Normal service conditions
       4.3 Electromagnetic compatibility (EMC)
       4.4 Provision for unusual service conditions
       4.5 Transport and storage conditions
    5 Tappings
    6 Connections
    7 Ability to withstand short circuit
    8 Rating
       8.1 General
       8.2 Rated power
       8.3 Preferred values of rated power
       8.4 Operation at higher than rated voltage
       8.5 Operation with fan cooling
       8.6 Operation in an enclosure
    9 Rating plate
       9.1 Rating plate fitted to the transformer
       9.2 Rating plate fitted to the transformer enclosure
    10 Identification according to cooling method
       10.1 Identification symbols
       10.2 Arrangement of symbols
    11 Temperature-rise limits
       11.1 Normal temperature-rise limits
       11.2 Reduced temperature rises for transformers designed
            for high cooling air temperatures or special air cooling
            conditions
       11.3 High altitude temperature rise correction
    12 Insulation levels
       12.1 General
       12.2 Transformers for use at high altitudes
    13 Climatic, environmental and fire behaviour classes
       13.1 Climatic classes
       13.2 Environmental classes
       13.3 Fire behaviour classes
       13.4 Test criteria for climatic, environmental and fire
            behaviour classes
    14 General requirements for tests
    15 Measurement of winding resistance (routine test)
    16 Measurement of voltage ratio and check of phase displacement
       (routine test)
    17 Measurement of short-circuit impedance and load loss
       (routine test)
    18 Measurement of no-load loss and current (routine test)
    19 Separate-source AC withstand voltage test (routine test)
    20 Induced AC withstand voltage test (routine test)
    21 Lightning impulse test (type test)
    22 Partial discharge measurement (routine and special test)
       22.1 General
       22.2 Basic measuring circuit (typical only)
       22.3 Calibration of the measuring circuit
       22.4 Voltage application
       22.5 Partial discharge acceptance levels
    23 Temperature-rise test (type test)
       23.1 General
       23.2 Methods of loading
       23.3 Winding temperature-rise correction for reduced current
       23.4 Determination of steady state conditions
    24 Measurement of sound level (special test)
    25 Short-circuit test (special test)
    26 Environmental test (special test)
       26.1 General
       26.2 Validity of the test
       26.3 Testing procedure
    27 Climatic test (special test)
       27.1 Thermal shock test (special test)
       27.2 Validity of the test
       27.3 Thermal shock test for C1 class transformers
       27.4 Thermal shock test for C2 class transformers
    28 Fire behaviour test (special test)
       28.1 General
       28.2 Checking of corrosive and harmful gases emission
       28.3 Fire behaviour test for F1 class transformer
       28.4 Quantities to be measured and measuring devices
       28.5 Calibration of the test chamber without test object
       28.6 Test method
       28.7 Test report
       28.8 Criteria for evaluating the test results
    29 Tolerances
    30 Protection against direct contact
    31 Degrees of protection provided by enclosures
    32 Earthing terminal
    33 Information required with enquiry and order
    Annex A (informative) Installation and safety of dry-type
                           transformers
    Annex ZA (normative) Normative references to international
                           publications with their corresponding
                           European publications
    Figures
    Tables

    Abstract - (Show below) - (Hide below)

    Applies to dry-type power transformers (including auto-transformers) having values of highest voltage for equipment up to and including 36 kV and at least one winding operating at greater than 1,1 kV.

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

    Committee TC 14
    Development Note Supersedes EN 60726 (07/2004)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By
    Supersedes

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

    BS EN 50329 : 2003 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - TRACTION 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 60214-1:2014 Tap-changers Performance requirements and test methods
    BS EN 60076-6:2008 Power transformers Reactors
    I.S. EN 60076-16:2011 POWER TRANSFORMERS - PART 16: TRANSFORMERS FOR WIND TURBINES APPLICATIONS (IEC 60076-16:2011)
    I.S. EN 62271-212:2017 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 212: COMPACT EQUIPMENT ASSEMBLY FOR DISTRIBUTION SUBSTATION (CEADS)
    UNE-EN 62271-212:2017 High-voltage switchgear and controlgear - Part 212: Compact Equipment Assembly for Distribution Substation (CEADS)
    EN 62271-212:2017 High-voltage switchgear and controlgear - Part 212: Compact Equipment Assembly for Distribution Substation (CEADS)
    EN 61558-2-2:2007 SAFETY OF POWER TRANSFORMERS, POWER SUPPLIES, REACTORS AND SIMILAR PRODUCTS - PART 2-2: PARTICULAR REQUIREMENTS AND TESTS FOR CONTROL TRANSFORMERS AND POWER SUPPLIES INCORPORATING CONTROL TRANSFORMERS
    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
    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 (IEC 61378-1:2011)
    I.S. EN 61558-2-2:2007 SAFETY OF POWER TRANSFORMERS, POWER SUPPLIES, REACTORS AND SIMILAR PRODUCTS - PART 2-2: PARTICULAR REQUIREMENTS AND TESTS FOR CONTROL TRANSFORMERS AND POWER SUPPLIES INCORPORATING CONTROL TRANSFORMERS
    CEI EN 60076-5 : 2007 POWER TRANSFORMERS - PART 5: ABILITY TO WITHSTAND SHORT CIRCUIT
    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 - PART 1: GENERAL REQUIREMENTS
    CEI EN 60076-16 : 2012 POWER TRANSFORMERS - PART 16: TRANSFORMERS FOR WIND TURBINES APPLICATIONS
    I.S. EN 50600-2-2:2014 INFORMATION TECHNOLOGY - DATA CENTRE FACILITIES AND INFRASTRUCTURES - PART 2-2: POWER DISTRIBUTION
    I.S. EN 60076-5:2006 POWER TRANSFORMERS - PART 5: ABILITY TO WITHSTAND SHORT-CIRCUIT
    I.S. EN 62271-202:2014 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 202: HIGH-VOLTAGE/LOW-VOLTAGE PREFABRICATED SUBSTATION
    BS EN 50600-2-2:2014 (published 2014-04) Information technology. Data centre facilities and infrastructures Power distribution
    CEI EN 61378-1 : 2012 CONVERTOR TRANSFORMERS - PART 1: TRANSFORMERS FOR INDUSTRIAL APPLICATIONS
    EN 61936-1 : 2010 AMD 1 2014 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES (IEC 61936-1:2010/A1:2014)
    CEI EN 61558-2-1 : 2007 SAFETY OF POWER TRANSFORMERS, POWER SUPPLIES, REACTORS AND SIMILAR PRODUCTS - PART 2-1: PARTICULAR REQUIREMENTS AND TESTS FOR SEPARATING TRANSFORMERS AND POWER SUPPLIES INCORPORATING SEPARATING TRANSFORMERS FOR GENERAL APPLICATIONS
    I.S. EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    NF 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
    BS EN 60076-16:2011 (published 2011-11) Power transformers Transformers for wind turbines applications
    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
    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 62271-202:2015 High-voltage switchgear and controlgear - Part 202: High-voltage/low-voltage prefabricated substation
    EN 50600-2-2:2014 INFORMATION TECHNOLOGY - DATA CENTRE FACILITIES AND INFRASTRUCTURES - PART 2-2: POWER DISTRIBUTION
    EN 50532:2010 Compact Equipment Assembly for Distribution Substations (CEADS)
    CEI EN 61558-2-2 : 2007 SAFETY OF POWER TRANSFORMERS, POWER SUPPLIES, REACTORS AND SIMILAR PRODUCTS - PART 2-2: PARTICULAR REQUIREMENTS AND TESTS FOR CONTROL TRANSFORMERS AND POWER SUPPLIES INCORPORATING CONTROL TRANSFORMERS
    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
    BS EN 60076-5:2006 Power transformers Ability to withstand short-circuit
    I.S. EN 50532:2010 COMPACT EQUIPMENT ASSEMBLY FOR DISTRIBUTION SUBSTATIONS (CEADS)
    BS EN 61378-1:2011 Convertor transformers Transformers for industrial applications
    BS EN 61558-2-1:2007 Safety of power transformers, power supplies, reactors and similar products Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications
    UNE-EN 60076-16:2012 Power transformers - Part 16: Transformers for wind turbines applications
    BS EN 60076-1 : 2011 POWER TRANSFORMERS - PART 1: GENERAL
    08/30184551 DC : DRAFT JUNE 2008 BS EN 50329 AMD1 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - TRACTION TRANSFORMERS
    BS EN 60310 : 2016 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK (IEC 60310:2016)
    CEI EN 60076-1 : 2015 POWER TRANSFORMERS - PART 1: GENERAL
    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
    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
    I.S. EN 60076-6:2008 POWER TRANSFORMERS - PART 6: REACTORS
    I.S. EN 61558-2-1:2007 SAFETY OF POWER TRANSFORMERS, POWER SUPPLIES, REACTORS AND SIMILAR PRODUCTS - PART 2-1: PARTICULAR REQUIREMENTS AND TESTS FOR SEPARATING TRANSFORMERS AND POWER SUPPLIES INCORPORATING SEPARATING TRANSFORMERS FOR GENERAL APPLICATIONS
    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
    UNE-EN 50329:2004 Railway applications - Fixed installations - Traction transformers
    09/30202403 DC : 0 BS EN 50532 - COMPACT EQUIPMENT ASSEMBLY FOR DISTRIBUTION SUBSTATIONS (CEADS)
    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 (IEC 60076-16:2011)
    BS EN 61558-2-2:2007 Safety of power transformers, power supplies, reactors and similar products Particular requirements and tests for control transformers and power supplies incorporating control transformers
    I.S. EN 60310:2016 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK
    I.S. EN 50329:2007 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - TRACTION TRANSFORMERS
    I.S. EN 61378-1:2011 CONVERTOR TRANSFORMERS - PART 1: TRANSFORMERS FOR INDUSTRIAL APPLICATIONS (IEC 61378-1:2011)
    BS EN 62271-202:2014 High-voltage switchgear and controlgear High-voltage/low-voltage prefabricated substation
    EN 50329:2003/A1:2010 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - TRACTION TRANSFORMERS
    EN 60076-6 : 2008 POWER TRANSFORMERS - PART 6: REACTORS
    EN 60076-5:2006 POWER TRANSFORMERS - PART 5: ABILITY TO WITHSTAND SHORT-CIRCUIT
    EN 61558-2-1:2007 SAFETY OF POWER TRANSFORMERS, POWER SUPPLIES, REACTORS AND SIMILAR PRODUCTS - PART 2-1: PARTICULAR REQUIREMENTS AND TESTS FOR SEPARATING TRANSFORMERS AND POWER SUPPLIES INCORPORATING SEPARATING TRANSFORMERS FOR GENERAL APPLICATIONS
    EN 60214-1:2014 TAP-CHANGERS - PART 1: PERFORMANCE REQUIREMENTS AND TEST METHODS (IEC 60214-1:2014)
    EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    EN 60310:2016/AC:2018-03 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK (IEC 60310:2016/COR1:2018)

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

    IEC 60270:2000+AMD1:2015 CSV High-voltage test techniques - Partial discharge measurements
    EN 60076-5:2006 POWER TRANSFORMERS - PART 5: ABILITY TO WITHSTAND SHORT-CIRCUIT
    IEC 60076-10:2016 Power transformers - Part 10: Determination of sound levels
    IEC 60076-5:2006 Power transformers - Part 5: Ability to withstand short circuit
    EN 60270:2001/A1:2016 HIGH-VOLTAGE TEST TECHNIQUES - PARTIAL DISCHARGE MEASUREMENTS (IEC 60270:2000/A1:2015)
    IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
    EN 60076-10:2016 POWER TRANSFORMERS - PART 10: DETERMINATION OF SOUND LEVELS (IEC 60076-10:2016)
    EN 61330:1996 HIGH-VOLTAGE/LOW-VOLTAGE PREFABRICATED SUBSTATIONS
    IEC 61330:1995 High-voltage/low voltage prefabricated substations
    IEC 60076-3:2013 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    IEC 60076-1:2011 Power transformers - Part 1: General
    EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    IEC 60905:1987 Loading guide for dry-type power transformers
    IEC 60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
    EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
    EN 60076-2:2011 POWER TRANSFORMERS - PART 2: TEMPERATURE RISE FOR LIQUID-IMMERSED TRANSFORMERS
    IEC 60332-3-10:2000+AMD1:2008 CSV Tests on electric and optical fibre cables under fire conditions - Part 3-10: Test for vertical flame spread of vertically-mounted bunched wires or cables - Apparatus
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