Power transformers - Additional European requirements - Part 2-5: Medium power transformer - Single phase

The scope of this document is to define the energy performance of liquid immersed single-phase Medium Power Transformers in compliance with EN 50708 1 1:2020.

Transformateurs de puissance - Exigences européennes supplémentaires - Partie 2-5 : Transformateurs de moyenne puissance monophasés

Le domaine d’application du présent document doit définir les performances énergétiques des transformateurs de moyenne puissance monophasés immergés dans un liquide selon l’EN 50708 1 1:2020.

Močnostni transformatorji - Dodatne evropske zahteve - 2-5. del: Srednji močnostni transformator - Enofazne naprave

General Information

Status
Published
Technical Committee
Current Stage

Buy Standard

Standard
EN 50708-2-5:2021
English language
8 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day
Draft
prEN 50708-2-5:2020
English language
8 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 50708-2-5:2021
01-november-2021
Močnostni transformatorji - Dodatne evropske zahteve - 2-5. del: Srednji
močnostni transformator - Enofazne naprave
Power transformers - Additional European requirements - Part 2-5: Medium power
transformer - Single phase

Transformateurs de puissance - Exigences européennes supplémentaires - Partie 2-5 :

Transformateurs de moyenne puissance monophasés
Ta slovenski standard je istoveten z: EN 50708-2-5:2021
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
SIST EN 50708-2-5:2021 en,fr

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50708-2-5:2021
---------------------- Page: 2 ----------------------
SIST EN 50708-2-5:2021
EUROPEAN STANDARD EN 50708-2-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2021
ICS 29.180
English Version
Power transformers - Additional European requirements - Part 2-
5: Medium power transformer - Single phase
Transformateurs de puissance - Exigences européennes
supplémentaires - Partie 2-5 : Transformateurs de moyenne
puissance monophasés

This European Standard was approved by CENELEC on 2021-07-05. 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,

Turkey 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

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 50708-2-5:2021 E
---------------------- Page: 3 ----------------------
SIST EN 50708-2-5:2021
EN 50708-2-5:2021 (E)
Contents

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

5.1 General ........................................................................................................... 5

5.2 PEI values for single-phase liquid immersed transformers ............................... 6

6 Rating plate.............................................................................................................. 6

7 Tolerances ............................................................................................................... 6

8 Tests ........................................................................................................................ 6

9 Accessories and fittings ........................................................................................... 6

10 Capitalization of losses ............................................................................................ 7

11 Transformers overhaul ............................................................................................. 7

Bibliography ................................................................................................................... 8

---------------------- Page: 4 ----------------------
SIST EN 50708-2-5:2021
EN 50708-2-5:2021 (E)
European foreword

This document (EN 50708-2-5:2021) has been prepared by CLC/TC 14 “Power transformers”.

The following dates are fixed:
• latest date by which this document has to be (dop) 2022–07–05
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2024–07–05
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.
---------------------- Page: 5 ----------------------
SIST EN 50708-2-5:2021
EN 50708-2-5:2021 (E)
Introduction

This part is a part of EN 50708 series deals with the energy performance of liquid single-phase

Medium Power Transformers.

For the purpose of this document, the requirements of the general EN 50708-1-1:2020 apply.

This
...

SLOVENSKI STANDARD
oSIST prEN 50708-2-5:2020
01-oktober-2020
Močnostni transformatorji - Dodatne evropske zahteve - 2-5. del: Srednji
močnostni transformatorj - Enofazne naprave
Power transformers - Additional European requirements - Part 2-5: Medium power
transformer - Single phase

Transformateurs de puissance - Exigences européennes supplémentaires - Partie 2-5 :

Transformateurs de moyenne puissance monophasés
Ta slovenski standard je istoveten z: prEN 50708-2-5
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
oSIST prEN 50708-2-5:2020 en,fr

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 50708-2-5:2020
---------------------- Page: 2 ----------------------
oSIST prEN 50708-2-5:2020
EUROPEAN STANDARD DRAFT
prEN 50708-2-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS
English Version
Power transformers - Additional European requirements - Part 2-
5: Medium power transformer - Single phase
Transformateurs de puissance - Exigences européennes To be completed
supplémentaires - Partie 2-5 : Transformateurs de moyenne
puissance monophasés
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2020-10-30.
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,

Turkey 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

© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 70487 Ref. No. prEN 50708-2-5 E
---------------------- Page: 3 ----------------------
oSIST prEN 50708-2-5:2020
prEN 50708-2-5:2020 (E)
1 Contents

2 European foreword ......................................................................................................... 3

3 Introduction .................................................................................................................... 4

4 1 Scope ........................................................................................................................ 5

5 2 Normative references ................................................................................................. 5

6 3 Terms and definitions ................................................................................................. 5

7 4 Service conditions ...................................................................................................... 5

8 5 Rating and general requirements ............................................................................... 5

9 5.1 General ........................................................................................................... 5

10 5.2 PEI values for single-phase liquid immersed transformers ............................... 5

11 6 Rating plate ............................................................................................................... 6

12 7 Tolerances ................................................................................................................. 6

13 8 Tests.......................................................................................................................... 6

14 9 Accessories and fittings ............................................................................................. 6

15 10 Capitalization of losses .............................................................................................. 6

16 11 Transformers overhaul ............................................................................................... 7

17 Bibliography ................................................................................................................... 8

---------------------- Page: 4 ----------------------
oSIST prEN 50708-2-5:2020
prEN 50708-2-5:2020 (E)
18 European foreword

19 This document (prEN 50708-2-5:2020) has been prepared by CLC/TC 14 “Power transformers”.

20 This document is currently submitted to the Enquiry.
21 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
---------------------- Page: 5 ----------------------
oSIST prEN 50708-2-5:2020
prEN 50708-2-5:2020 (E)
22 Introduction

23 This document defines the rules for the assessment of energy performance to ensure the product

24 conformity to the Commission Regulation (EU) No 548/2014 of 21 May 2014 and its amendment No

25 2019/17
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.