prEN 50708-1-1:2023

Power transformers - Additional European requirements - Part 1-1: Common part - General requirements

This document is part of the EN 50708 series which applies to transformers in compliance with EN 60076 1.

Leistungstransformatoren - Zusätzliche europäische Anforderungen - Teil -1-1: Allgemeiner Teil - Allgemeine Anforderungen

Transformateurs de puissance - Exigences européennes supplémentaires : Partie 1 - Partie commune

Le présent document fait partie intégrante de la série EN 50708 qui s'applique aux transformateurs conformes à l'EN 60076 1.

Močnostni transformatorji - Dodatne evropske zahteve - 1-1. del: Skupni del - Splošne zahteve

General Information

• Status: Not Published
• Publication Date: 01-Jun-2025
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: CLC/TC 14 - Power transformers
• Drafting Committee: CLC/TC 14/WG 32 - Energy performance of all power transformers in the scope of CLC/TC 14
• Current Stage: 4060 - Enquiry results established and sent to TC, SR, BTTF - Enquiry
• Start Date: 03-Nov-2023
• Due Date: 09-Mar-2022
• Completion Date: 03-Nov-2023
• Directive: 548/2014 - Commission Regulation (EU) No 548/2014 of 21 May 2014 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to small, medium and large power transformers
• Mandate: M/495 - Standardisation mandate to CEN, CENELEC and ETSI under Directive 2009/125/EC relating to harmonised standards in the field of Ecodesign
• Ref Project: oSIST prEN 50708-1-1:2023 - Power transformers - Additional European requirements - Part 1-1: Common part - General requirements

Relations

• Revises: EN 50708-1-1:2020/AC:2020-12 - Power transformers - Additional European requirements: Part 1-1: Common part - General requirements
• Effective Date: 15-Dec-2020
• Revises: EN 50708-1-1:2020 - Power transformers - Additional European requirements: Part 1-1: Common part - General requirements
• Effective Date: 15-Dec-2020

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 50708-1-1:2023
01-oktober-2023
Močnostni transformatorji - Dodatne evropske zahteve - 1-1. del: Skupni del -
Splošne zahteve
Power transformers - Additional European requirements - Part 1-1: Common part -
General requirements
Leistungstransformatoren - Zusätzliche europäische Anforderungen - Teil -1-1:
Allgemeiner Teil - Allgemeine Anforderungen
Transformateurs de puissance - Exigences européennes supplémentaires : Partie 1 -
Partie commune
Ta slovenski standard je istoveten z: prEN 50708-1-1:2023
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
oSIST prEN 50708-1-1:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50708-1-1:2023

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oSIST prEN 50708-1-1:2023


EUROPEAN STANDARD DRAFT
prEN 50708-1-1
NORME EUROPÉENNE

EUROPÄISCHE NORM

August 2023
ICS 29.180 Will supersede EN 50708-1-1:2020; EN 50708-1-
1:2020/AC:2020-12
English Version
Power transformers - Additional European requirements -
Part 1-1: Common part - General requirements
Transformateurs de puissance - Exigences européennes Leistungstransformatoren - Zusätzliche europäische
supplémentaires : Partie 1 - Partie commune Anforderungen - Teil -1-1: Allgemeiner Teil - Allgemeine
Anforderungen
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2023-11-03.

It has been drawn up by CLC/TC 14.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.



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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 73196 Ref. No. prEN 50708-1-1:2023 E

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oSIST prEN 50708-1-1:2023
prEN 50708-1-1:2023 (E)
Contents . Page
European foreword . 4
Introduction. 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Service condition . 12
5 Ratings and general requirements . 12
5.1 Rated power . 12
5.2 Rated frequency . 13
5.3 Energy performance .
...