EN 50645:2017
(Main)Ecodesign requirements for small power transformers
Ecodesign requirements for small power transformers
This European Standard gives Ecodesign requirements for small power transformers complying with the EN 61558 series and in relation to Commission Regulation (EU) N° 548/2014 implementing the European Directive 2009/125/EC. This European Standard is applicable to transformers with 50 Hz AC input and output with a rated power of 1 kVA or more and a voltage lower than 1 kV, except those excluded in the regulation. For transformers with a voltage between 1 kV and 1,1 kV, this standard may be used as a guide.
Anforderungen an die umweltgerechte Gestaltung von Kleinleistungstransformatoren
Diese europäische Norm enthält Anforderungen an die umweltgerechte Gestaltung von Kleinleistungstrans¬formatoren, die der Reihe EN 61558 entsprechen und auf die in der Verordnung (EU) Nr. 548/2014 der Kommission zur Umsetzung der Richtlinie 2009/125/EG Bezug genommen wird. Diese europäische Norm ist auf Transformatoren mit 50-Hz-Wechselspannungseingang und -ausgang mit einer Bemessungsleistung von 1 kVA oder mehr und einer Spannung unterhalb von 1 kV mit Ausnahme der in der Verordnung ausgenommenen Transformatoren anwendbar. Für Transformatoren mit einer Spannung zwischen 1 kV und 1,1 kV kann diese Norm als Leitfaden benutzt werden.
Exigences en matière d'écoconception applicables aux transformateurs de faible puissance
La présente Norme européenne donne les exigences en matière d'écoconception applicables aux transformateurs de faible puissance conformes à la série EN 61558 et en relation avec le Règlement de la Commission (UE) No. 548/2014 mettant en œuvre la Directive européenne 2009/125/CE. La présente Norme européenne s'applique aux transformateurs ayant des entrées et sorties en courant alternatif de 50 Hz avec une puissance assignée de 1 kVA ou plus et une tension inférieure à 1 kV, à l'exception de ceux qui sont exclus dans la réglementation. Pour les transformateurs avec une tension comprise entre 1 kV et 1,1 kV, la présente norme peut être utilisée comme guide.
Zahteve za okoljsko primerno zasnovo majhnih močnostnih transformatorjev
Ta evropski standard določa zahteve za okoljsko primerno zasnovo majhnih močnostnih transformatorjev, ki so v skladu s skupino standardov EN 61558 v povezavi z Uredbo Komisije (EU) št. 548/2014 o izvajanju Direktive 2009/125/ES.
Ta evropski standard se uporablja za transformatorje z vhodom in izhodom 50 Hz AC z nazivno močjo 1 kVA ali več in napetostjo manj kot 1 kV, razen za tiste, ki so izključeni iz uredbe.
Za transformatorje z napetostmi 1–1,1 kV se ta standard lahko uporabi kot vodilo.
General Information
- Status
- Published
- Publication Date
- 26-Oct-2017
- Withdrawal Date
- 30-Jul-2020
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 27-Oct-2017
- Due Date
- 12-Aug-2017
- Completion Date
- 27-Oct-2017
Overview
EN 50645:2017 is a European Standard specifying ecodesign requirements for small power transformers. Developed by CLC, this standard aligns with the EN 61558 series and the European Commission Regulation (EU) No 548/2014, which implements Directive 2009/125/EC on ecodesign requirements. It applies primarily to transformers operating at 50 Hz AC with a rated power of 1 kVA or more, and voltage lower than 1 kV. Transformers rated between 1 kV and 1.1 kV can use this standard as a guiding reference.
The aim of EN 50645:2017 is to reduce the environmental impact of small power transformers by setting mandatory limits on no-load and load losses while ensuring operational efficiency and conformity with EU regulations. It supports the energy efficiency goals of the European Union’s ecodesign framework.
Key features include:
- Compliance criteria for no-load and load losses
- Testing methodologies for type and routine tests
- Mandatory marking and detailed technical documentation requirements
- Guidelines for cooling systems and material specifications
Key Topics
Scope and Applicability:
Covers small power transformers with rated power ≥ 1 kVA, input/output voltage < 1 kV, 50 Hz frequency. Excludes transformers outside regulation scope and may guide transformers up to 1.1 kV.Ecodesign Requirements:
Limits on no-load loss (Po) and load loss (Pk) with a tolerance of ±5% from marked values. These losses are critical factors in transformer efficiency and environmental performance.Testing Procedures:
- Type Tests: Measurement of no-load and load losses under defined conditions.
- Routine Tests: Production level testing verifying no-load losses on each unit.
Marking and Documentation: Transformers must be clearly marked with:
- Rated power
- Load loss and no-load loss values
- Power consumption of cooling systems at no load
- Weight and material type for conductors and cores
Additionally, manufacturers must document this information alongside company identification and model references.
Definitions and Terminology:
Includes key terms such as rated power, rated supply voltage, load loss, no-load loss, and rated ambient temperature to ensure clarity and consistency in implementation.Relationship with EU Regulation:
Provides a presumption of conformity with Commission Regulation (EU) No 548/2014 when this standard is referenced, facilitating regulatory compliance and market acceptance across the EU.
Applications
EN 50645:2017 is essential for manufacturers, suppliers, and regulatory bodies involved with small power transformers used in:
- Electrical power distribution and conversion systems
- Industrial equipment and machinery requiring reliable transformer performance
- Consumer appliances where energy efficiency and reduced environmental impact are priorities
- Design and manufacturing of transformers intended for the European market requiring compliance with ecodesign directives
The standard supports:
- Optimized transformer design for lower energy losses
- Eco-friendly production and certification processes
- Transparent product information for consumers and regulatory authorities
- Harmonization of testing and quality control practices across the EU
Related Standards
- EN 61558 Series: Safety requirements and testing methods for power transformers and similar products, providing foundational specifications for materials and design.
- Commission Regulation (EU) No 548/2014: Implements ecodesign requirements for small power transformers under Directive 2009/125/EC, mandating minimum energy performance standards.
- IEC 61558-1 (EN 61558-1): International standard detailing general safety requirements and tests for transformers.
- Other environmental protection related standards within ICS 13.020.99 and transformer-specific standards under ICS 29.180.
Keywords: EN 50645:2017, ecodesign, small power transformers, transformer efficiency, load loss, no-load loss, CLC standard, EU ecodesign requirements, Commission Regulation 548/2014, electrical transformer standards, transformer marking, transformer testing, energy efficiency directives.
Frequently Asked Questions
EN 50645:2017 is a standard published by CLC. Its full title is "Ecodesign requirements for small power transformers". This standard covers: This European Standard gives Ecodesign requirements for small power transformers complying with the EN 61558 series and in relation to Commission Regulation (EU) N° 548/2014 implementing the European Directive 2009/125/EC. This European Standard is applicable to transformers with 50 Hz AC input and output with a rated power of 1 kVA or more and a voltage lower than 1 kV, except those excluded in the regulation. For transformers with a voltage between 1 kV and 1,1 kV, this standard may be used as a guide.
This European Standard gives Ecodesign requirements for small power transformers complying with the EN 61558 series and in relation to Commission Regulation (EU) N° 548/2014 implementing the European Directive 2009/125/EC. This European Standard is applicable to transformers with 50 Hz AC input and output with a rated power of 1 kVA or more and a voltage lower than 1 kV, except those excluded in the regulation. For transformers with a voltage between 1 kV and 1,1 kV, this standard may be used as a guide.
EN 50645:2017 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.
EN 50645:2017 is associated with the following European legislation: EU Directives/Regulations: 548/2014; Standardization Mandates: M/495_AM2, M/495 AMD 2. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 50645:2017 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.
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2018
=DKWHYH]DRNROMVNRSULPHUQR]DVQRYRPDMKQLKPRþQRVWQLKWUDQVIRUPDWRUMHY
Ecodesign requirements for small power transformers
Exigences en matière d’écoconception applicables aux transformateurs de faible
puissance
Ta slovenski standard je istoveten z: EN 50645:2017
ICS:
13.020.99 Drugi standardi v zvezi z Other standards related to
varstvom okolja environmental protection
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50645
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2017
ICS 29.180
English Version
Ecodesign requirements for small power transformers
Exigences en matière d'écoconception applicables aux Anforderungen an die umweltgerechte Gestaltung von
transformateurs de faible puissance Kleinleistungstransformatoren
This European Standard was approved by CENELEC on 2017-07-31. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50645:2017 E
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General notes on tests . 6
5 Marking and other information . 6
6 No-load loss (P ) . 6
o
7 Load loss (P ) . 7
k
Annex A (normative) Routine tests (production tests) . 8
Annex ZZ (informative) Relationship between this European Standard and the
ecodesign requirements of Commission Regulation (EU) No 548/2014 aimed
to be covered . 9
Bibliography . 10
European foreword
This document (EN 50645:2017) has been prepared by CLC/BTTF 146-1 “Losses of small
transformers: methods of measurement, marking and other requirements related to eco-design
regulation”.
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.
The following dates are fixed:
• latest date by which this document has to be (dop) 2018–07–31
implemented at national level by publication of
an identical national standard or by endorsement
• latest date by which the national standards (dow) 2020–07–31
conflicting with this document have to
be withdrawn
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
1 Scope
This European Standard gives Ecodesign requirements for small power transformers complying with
the EN 61558 series and in relation to Commission Regulation (EU) N° 548/2014 implementing the
European Directive 2009/125/EC.
This European Standard is applicable to transformers with 50 Hz AC input and output with a rated
power of 1 kVA or more and a voltage lower than 1 kV, except those excluded in the regulation.
For transformers with a voltage between 1 kV and 1,1 kV, this standard may be used as a guide.
2 Normative references
Not applicable.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
NOTE Unless otherwise specified, the terms “voltage” and “current” imply the r.m.s. values of alternating
voltage and current.
3.1
(power) transformer
static piece of apparatus with two or more windings which, by electromagnetic induction, transforms a
system of alternating voltage and current into another system of voltage and current usually of
different values and at the same frequency for the purpose of transmitting electrical power
[SOURCE: IEV 421-01-01]
Note 1 to entry: The term frequency also implies that the waveform remains the same.
3.2
short-circuit voltage
voltage to be applied to the input winding, when the windings are at ambient temperature, to produce
in the short-circuited output winding a current equal to the rated output current
Note 1 to entry: The short-circuit voltage is usually expressed as a percentage of the rated supply
voltage.
3.3
rated output current
output current at rated supply voltage, rated supply frequency and rated output voltage, at rated power
factor, assigned to the transformer by the manufacturer for the specified operating conditions of the
transformer
3.4
rated supply voltage
supply voltage (for polyphase supply, the phase-to-phase voltage) assigned to the transformer by the
manufacturer for the specified operating conditions
...
EN 50645:2017 표준은 소형 전력 변압기에 대한 에코디자인 요구사항을 제공하며, 이는 EN 61558 시리즈를 준수하고 유럽 지침 2009/125/EC를 이행하는 EU 규정(N° 548/2014)과 관련이 있습니다. 이 표준은 50 Hz AC 전원 입력 및 출력이 있는 변압기에 적용되며, 정격 전력이 1 kVA 이상이고 전압이 1 kV 미만인 경우에 해당합니다. 규정에 의해 제외되는 경우를 제외하고 모든 소형 전력 변압자가 이 표준의 적용을 받습니다. EN 50645:2017의 주요 강점은 에코디자인 요구사항을 통해 에너지 효율성을 극대화하고 환경 영향을 최소화하기 위한 명확한 지침을 제공한다는 점입니다. 이는 지속 가능한 발전을 위한 중요한 단계이며, 소형 전력 변압기 제조업체들이 친환경 제품을 시장에 출시할 수 있도록 지원합니다. 또한, 이 표준은 EU 시장의 법적 요구사항을 충족시키기 위해 설계되었으며, 이에 따라 기업들은 규정 준수 여부를 쉽게 확인할 수 있습니다. 더욱이, 전압이 1 kV와 1.1 kV 사이인 변압기에 대해서는 이 표준을 가이드로 활용할 수 있어, 제조업체들이 다양한 전압 범위에 적합한 제품을 개발하는 데 도움을 줍니다. 이는 변압기 산업의 기술 혁신을 촉진하고 전체적인 제품 품질을 향상시키는 데 기여합니다. 결론적으로, EN 50645:2017 표준은 소형 전력 변압기의 에코디자인 요구사항을 명확히 규정하고, 이를 통해 산업 전반에 걸친 에너지 효율성 증진 및 환경 보호를 위한 중대한 역할을 수행합니다.
EN 50645:2017規格は、小型電力変圧器に対するエコデザイン要件を定義する欧州規格であり、EN 61558シリーズに適合し、EU規則第548/2014号及び欧州指令2009/125/ECを実施するものです。この規格は、50 Hz交流入力及び出力を持ち、定格出力が1 kVA以上、電圧が1 kV未満の変圧器に適用されますが、規則で除外されているものは対象外となります。また、1 kVから1.1 kVの電圧を持つ変圧器については、ガイドとしてこの規格を利用することができます。 この規格の強みは、環境への配慮を組み込んだデザイン方針を示すことで、持続可能なエネルギー利用を促進する点です。エコデザイン要件に基づき、小型電力変圧器の効率性を向上させることが求められ、これによりエネルギー消費の削減や運用コストの低減が期待されます。更に、業界の自主的な規制遵守を促進するための明確な基準を提供することにより、製造者にとっても競争優位性を生む要素となります。 また、EN 50645:2017は、EU市場における製品の競争力を高めるための基準として非常に重要であり、特に環境規制が厳しく求められる現在の状況において、その関連性が高まっています。この標準化文書を参照することで、製造者は必要な技術基準やエコデザインの要件を理解し、効果的に製品開発を行うことができます。 全体として、EN 50645:2017は技術基準として優れた内容を含み、エコデザインの実施において重要な役割を果たすことが期待される標準です。
The standard EN 50645:2017 outlines clear Ecodesign requirements for small power transformers, specifically addressing devices that comply with the EN 61558 series and are consistent with Commission Regulation (EU) N° 548/2014, implemented under the European Directive 2009/125/EC. Its scope is particularly focused on transformers that operate at 50 Hz AC with a rated power of 1 kVA or more and are designed for voltages under 1 kV, ensuring a comprehensive approach to energy efficiency and environmental sustainability. One of the strengths of EN 50645:2017 lies in its robust framework that encourages manufacturers to develop transformers that not only meet performance criteria but also minimize environmental impact. By adhering to Ecodesign principles, the standard fosters innovation in design and manufacturing processes, guiding the industry towards more energy-efficient technologies. Additionally, the provision for transformers with voltages between 1 kV and 1.1 kV serves as a practical guide, enhancing its relevance for a broad spectrum of devices while preparing future adaptations in the industry. The aforementioned standard plays a crucial role in aligning industry practices with European regulatory frameworks, promoting safe and efficient power transformers that are environmentally responsible. In this way, EN 50645:2017 is not only significant in terms of compliance but also contributes to the broader goal of environmental sustainability in the electrical equipment sector, making it a pivotal reference document for manufacturers and regulators alike.
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