EN 50708-2-6:2022
(Main)Power transformers - Additional European requirements - Part 2-6: Medium power transformers - Non-conventional magnetic steel technology
Power transformers - Additional European requirements - Part 2-6: Medium power transformers - Non-conventional magnetic steel technology
This document defines the energy performance of non-conventional technology Medium Power Transformers in compliance with EN 50708-1-1.
Leistungstransformatoren - Zusätzliche europäische Anforderungen - Teil 2-6: Mittelleistungstransformatoren - Nicht konventionelle Kernblech-Technologie
Transformateurs de puissance - Exigences européennes supplémentaires - Partie 2-6: Transformateurs de moyenne puissance - Technologie à acier magnétique non conventionnel
Le présent document définit les performances énergétiques des transformateurs de moyenne puissance qui utilisent des technologies non conventionnelles conformes à l'EN 50708-1-1.
Močnostni transformatorji - Dodatne evropske zahteve - 2-6. del: Srednji močnostni transformatorji - Nekonvencionalne tehnologije
Področje uporabe tega dokumenta je opredelitev energetske učinkovitosti srednje močnostnih transformatorjev z nekonvencionalno tehnologijo v skladu s standardom EN 50708-1-1:2020.
General Information
Overview
EN 50708-2-6:2022 is a European Standard published by CLC that specifies additional requirements for medium power transformers using non-conventional magnetic steel technology. This standard supplements the general energy performance requirements outlined in EN 50708-1-1. It focuses on transformers that incorporate innovative materials such as amorphous magnetic steel, which differ from traditional crystalline structures. The standard defines key performance parameters, testing procedures, and service conditions to ensure the reliability and efficiency of these advanced medium power transformers.
Key Topics
Scope and Application
EN 50708-2-6:2022 addresses energy performance criteria specifically for medium power transformers built with non-conventional magnetic steel. It applies in conjunction with the general requirements defined in EN 50708-1-1 and related parts of the EN 50708 series.Non-Conventional Magnetic Steel Technology
This standard covers magnetic steel materials that deviate from traditional crystalline structures, such as amorphous steel technology (further referenced under IEC 60404-8-11). These materials contribute to improved energy efficiency and reduced losses.Energy Performance and Losses
The document sets limits for no-load losses and load losses for both liquid-immersed and dry-type transformers in the specified power range. This helps manufacturers and purchasers ensure transformers meet modern energy efficiency expectations.Testing and Reliability
Transformer manufacturers must verify the long-term reliability of non-conventional magnetic steel transformers. The standard mandates short circuit withstand tests or equivalent certification, performed according to IEC/EN 60076 series rules. This ensures robustness under operational stresses.Additional Requirements
Includes provisions on rating plates, tolerances, accessories, and capitalization of losses aligned with EN 50708-1-1. It also outlines necessary tests unique to non-conventional technology transformers.
Applications
EN 50708-2-6:2022 applies to a range of medium power transformers used across industries where energy efficiency and reliability are critical-such as power distribution networks, renewable energy installations, and industrial power systems. The use of non-conventional magnetic steel enables:
- Reduced core losses and improved energy efficiency
- Lower operational costs through decreased no-load losses
- Enhanced performance in medium power ranges (up to approximately 3,150 kVA)
- Compliance with European energy-related product regulations and market requirements
The standard is valuable for transformer manufacturers, commissioning engineers, procurement specialists, and energy auditors focused on sustainable electrical infrastructure.
Related Standards
To ensure comprehensive compliance and interoperability, EN 50708-2-6:2022 should be used alongside key standards including:
- EN 50708-1-1: Common requirements for power transformers' additional European requirements
- EN 50708-2-1: Medium power transformers using conventional technologies
- EN 60076 series: International standards detailing general transformer requirements, insulation levels, short circuit capability, and dielectric testing
- EN IEC 60076-11: Norms specifically for dry-type transformers
- IEC 60404-8-11: Specifications for Fe-based amorphous strip materials used in transformer cores
- EN 50708-3-1: Large power transformer additional European requirements
By aligning with this suite of standards, manufacturers ensure transformers meet the highest energy efficiency, safety, and operational quality benchmarks demanded in the European market.
Keywords: EN 50708-2-6:2022, medium power transformers, non-conventional magnetic steel technology, amorphous steel transformers, power transformer energy efficiency, transformer no-load losses, short circuit test, CLC standard, European transformer requirements, power transformer standards, transformer reliability testing.
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2022
Močnostni transformatorji - Dodatne evropske zahteve - 2-6. del: Srednji
močnostni transformatorji - Nekonvencionalne tehnologije
Power transformers - Additional European requirements: Part 2-6 Medium power
transformers - Non conventional technologies
Transformateurs de puissance - Exigences européennes supplémentaires : Partie 2-6
Transformateurs de moyenne puissance - Technologies non conventionnelles
Ta slovenski standard je istoveten z: EN 50708-2-6:2022
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50708-2-6
NORME EUROPÉENNE
EUROPÄISCHE NORM September 2022
ICS 29.180
English Version
Power transformers - Additional European requirements - Part 2-
6: Medium power transformers - Non-conventional magnetic
steel technology
Transformateurs de puissance - Exigences européennes Leistungstransformatoren - Zusätzliche europäische
supplémentaires - Partie 2-6: Transformateurs de moyenne Anforderungen - Teil 2-6: Mittelleistungstransformatoren -
puissance - Technologie à acier magnétique non Nicht konventionelle Technologien
conventionnel
This European Standard was approved by CENELEC on 2022-07-25. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50708-2-6:2022 E
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Service conditions . 5
5 Rating and general requirements. 5
6 Rating plate. 7
7 Tolerances . 7
8 Additional tests for non-conventional technology . 7
9 Accessories and fittings . 7
10 Capitalization of losses . 7
11 Transformers overhaul . 7
Bibliography . 8
European foreword
This document (EN 50708-2-6:2022) has been prepared by CLC/TC 14 “Power transformers”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2023-07-25
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2025-07-25
conflicting with this document have to be
withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Introduction
This part of the EN 50708 series deals with the energy performance of non-conventional technology
Medium Power Transformers.
For the purpose of this document, the requirements of EN 50708-1-1 apply.
This document contains particular requirements for specific transformers or transformer applications,
which are based on the requirements of EN 50708-1-1.
This document should be considered in conjunction with the requirements of the general parts.
The particular requirements of the different sub parts of EN 50708 supplement, modify or replace
certain requirements of the general parts of EN 50708-1 and/or EN 50708-1-X being valid at the time
of publication of this document. The absence of references to the exclusion of a part or a clause of a
general part means that the corresponding clauses of the general part are applicable (undated
reference).
Requirements of other -X parts with X greater than 1 being eventually
...
Frequently Asked Questions
EN 50708-2-6:2022 is a standard published by CLC. Its full title is "Power transformers - Additional European requirements - Part 2-6: Medium power transformers - Non-conventional magnetic steel technology". This standard covers: This document defines the energy performance of non-conventional technology Medium Power Transformers in compliance with EN 50708-1-1.
This document defines the energy performance of non-conventional technology Medium Power Transformers in compliance with EN 50708-1-1.
EN 50708-2-6:2022 is classified under the following ICS (International Classification for Standards) categories: 29.180 - Transformers. Reactors. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase EN 50708-2-6:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
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