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UNE-IEC 60076-7:2025 UNE
Status: Current/ 2025-06-25
Power transformers - Part 7: Loading guide for mineral-oil-immersed power transformers.
UNE-EN IEC 61558-2-10:2025 UNE
Status: Vigente/ 2025-04-02
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V
UNE-EN IEC 60076-25:2023 UNE
Status: Vigente/ 2023-12-05
Power transformers - Part 25: Neutral grounding resistors
UNE-EN IEC 60076-19-1:2023 UNE
Status: Vigente/ 2023-11-29
Power transformers - Part 19-1: Rules for the determination of uncertainties in the measurement of the losses of power transformers
UNE-EN IEC 60076-22-7:2021/AC:2023-07 UNE
Status: Vigente/ 2023-09-27
Power transformers - Part 22-7: Power transformer and reactor fittings - Accessories and fittings
UNE-EN IEC 61869-9:2023 UNE
Status: Vigente/ 2023-05-24
Instrument Transformers - Part 9: Digital interface for instrument transformers
UNE-EN 50243:2023 UNE
Status: Vigente/ 2023-04-19
Outdoor bushings for 24 kV and 36 kV and for 5 kA and 8 kA, for liquid filled transformers
UNE-EN IEC 60599:2023 UNE
Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis
UNE-EN 50708-3-4:2023 UNE
Status: Vigente/ 2023-03-29
Power transformers - Additional European requirements - Part 3-4: Large power transformer - Special tests for corrugated tank and radiators
UNE-EN 50708-2-6:2023 UNE
Power transformers - Additional European requirements - Part 2-6: Medium power transformers - Non-conventional magnetic steel technology
UNE-EN 50708-2-4:2023 UNE
Power transformers - Additional European requirements - Part 2-4: Medium power transformer - Special tests
UNE-EN 50708-2-3:2023 UNE
Power transformers - Additional European requirements - Part 2-3: Medium power transformer - Accessories
UNE 21538-1:2023 UNE
Status: Vigente/ 2023-02-01
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. National complementary annex
UNE-EN 50708-2-5:2022 UNE
Status: Vigente/ 2022-10-26
Power transformers - Additional European requirements - Part 2-5: Medium power transformer - Single phase
UNE-EN 50708-1-2:2022 UNE
Status: Vigente/ 2022-10-11
Power transformers - Additional European requirements: Part 1-2 Common part - Assessment of energy performance
UNE-EN 50336:2022 UNE
Status: Vigente/ 2022-04-20
Bushings for transformers and reactor cable boxes not exceeding 36 kV
UNE 21428-1-3:2021 UNE
Status: Vigente/ 2021-12-01
Three-phase liquid-immersed distribution transformers 50 Hz, from 25 kVA to 3 150 kVA with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. Section 3: Requirements for dual-voltage transformers in high-voltage and for dual-voltage transformers in low-voltage
UNE 21428-1-2:2021 UNE
Three-phase liquid-immersed distribution transformers 50 Hz, from 25 kVA to 3 150 kVA with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. Section 2: Requirements for dual-voltage transformers in low-voltage.
UNE 21428-1:2021 UNE
Status: Vigente/ 2022-04-06
Three-phase liquid -immersed distribution transformers 50 Hz, from 25 kVA to 3 150 kVA with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. National complementary annex
UNE 21428-1-1:2021 UNE
Three-phase liquid-immersed distribution transformers 50 Hz, from 25 kVA to 3 150 kVA with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. Section 1: Requirement for dual voltage transformers in high-voltage.
UNE-EN IEC 60076-24:2021 UNE
Status: Vigente/ 2021-07-28
Power transformers - Part 24: Specification of Voltage Regulating Distribution Transformers (VRDT)
UNE-EN ISO 10656:2021 UNE
Status: Vigente/ 2021-06-02
Resistance welding equipment - Transformers - Integrated transformers for welding guns (ISO 10656:2016, Corrected version 2016-08)
UNE-EN IEC 60076-11:2021 UNE
Status: Vigente/ 2021-03-31
Power transformers - Part 11: Dry-type transformers
UNE-EN IEC 60076-22-7:2021 UNE
UNE-EN IEC 60296:2021 UNE
Fluids for electrotechnical applications - Mineral insulating oils for electrical equipment
UNE-EN IEC 61558-1:2021 UNE
Status: Vigente/ 2021-03-17
Safety of transformers, reactors, power supply units and combinations thereof - Part 1: General requirements and tests
UNE-EN IEC 62041:2021 UNE
Transformers, power supplies, reactors and similar products - EMC requirements
UNE-EN 50708-1-1:2021 UNE
Status: Vigente/ 2024-10-02
Power transformers - Additional European requirements: Part 1-1: Common part - General requirements
UNE-EN 50708-2-1:2021 UNE
Power transformers - Additional European requirements: Part 2-1 Medium power transformer - General requirements
UNE-EN 50708-3-1:2020 UNE
Status: Vigente/ 2020-12-16
Power transformers - Additional European requirements: Part 3-1 Large power transformer - General requirements
UNE-EN 50238-1:2020 UNE
Status: Vigente/ 2020-10-21
Railway applications - Compatibility between rolling stock and train detection systems - Part 1: General
UNE-EN IEC 60076-22-1:2020 UNE
Status: Vigente/ 2020-09-30
Power transformers - Part 22-1: Power transformer and reactor fittings – Protective devices
UNE-EN IEC 60076-22-3:2020 UNE
Status: Vigente/ 2020-05-13
Power transformers - Part 22-3: Power transformer and reactor fittings - Insulating liquid to air heat exchangers
UNE-EN IEC 60076-22-4:2020 UNE
Power transformers - Part 22-4: Power transformer and reactor fittings - Insulating liquid to water heat exchangers
UNE-EN IEC 60076-22-2:2020 UNE
Power transformers - Part 22-2: Power transformer and reactor fittings - Removable radiators
UNE-EN IEC 61869-10:2020 UNE
Status: Vigente/ 2020-04-15
Instrument transformers - Part 10: Additional requirements for low-power passive current transformers
UNE-EN 50588-2:2019 UNE
Status: Anulada/ 2023-10-19
Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV - Part 2: Transformers with cable boxes on the high-voltage and/or low-voltage side - General requirements for transformers with rated power less than or equal to 3 150 kVA
UNE-EN 50629:2016/A2:2019 UNE
Status: Anulada/ 2021-07-29
Energy performance of large power transformers (Um > 36 kV or Sr = 40 MVA)
UNE-EN 61869-6:2019 UNE
Status: Vigente/ 2019-04-17
Instrument transformers - Part 6: Additional general requirements for low-power instrument transformers
UNE-EN IEC 61869-11:2019 UNE
Instrument transformers - Part 11: Additional requirements for low-power passive voltage transformers
UNE-EN 60076-3:2014/A1:2018 UNE
Status: Vigente/ 2018-09-19
Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
UNE-EN 50588-4:2018 UNE
Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV - Part 4: Transformers with cable boxes on the high-voltage and/or low-voltage side - Cable boxes type 2 for use on transformers meeting the requirements of EN 50588-2
UNE-EN 50588-3:2018 UNE
Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV - Part 3: Transformers with cable boxes on the high-voltage and/or low-voltage side - Cable boxes type 1 for use on transformers meeting the requirements of EN 50588-2
UNE 21538-1:2018 UNE
Status: Anulada/ 2023-02-01
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. National complementary annex.
UNE-EN 50588-1:2018 UNE
Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV - Part 1: General requirements
UNE-EN 50645:2018 UNE
Status: Vigente/ 2018-03-14
Ecodesign requirements for small power transformers
UNE-EN ISO 22829:2018 UNE
Status: Vigente/ 2018-02-28
Resistance welding equipment - Transformers - Integrated transformer-rectifier units for welding guns operating at 1 000 Hz (ISO 22829:2017)
UNE 21428-1-1:2017 UNE
Status: Anulada/ 2021-12-01
Three-phase oil-immersed distribution transformers 50 Hz, from 25 kVA to 3150 kVA with highest voltage for equipment not exceeding 36 kV -- Part 1: General requirements. Section 1: Requirement for dual voltage transformers in high-voltage.
UNE 21428-1-2:2017 UNE
Three-phase oil-immersed distribution transformers 50 Hz, from 25 kVA to 3150 kVA with highest voltage for equipment not exceeding 36 kV -- Part 1: General requirements. Section 2: Requirements for dual-voltage transformers in low-voltage
UNE 21428-1-3:2017 UNE
Three-phase oil-immersed distribution transformers 50 Hz, from 25 kVA to 3150 kVA with highest voltage for equipment not exceeding 36 kV -- Part 1: General requirements. Section 3: Requirements for dual-voltage transformers in high-voltage and for dual-voltage transformers in low-voltage
