Power transformers - Part 24: Specification of voltage regulating distribution transformers (VRDT)

IEC 60076-24:2020 applies to medium power transformers from 25 kVA up to 3 150 kVA with highest voltage for equipment up to 36 kV, or in low voltage (LV) networks with highest voltage for equipment of up to 1,1 kV equipped with voltage regulating devices. Voltage regulating distribution transformers are transformers equipped with components to control primary or secondary voltage for on-load voltage regulation purposes. The main objective of the installation of a VRDT is to regulate the LV network voltage level (i.e. 400 V), to avoid violation of the limits defined by relevant standards or regulations. The VRDT must operate properly as a step down and step up transformer. Transformers covered by this document comply with the relevant requirements set out in IEC 60076 (all parts) and, unless otherwise stated in this document, they also comply with European Standards EN 50160 and EN 50588-1.

Leistungstransformatoren - Teil 24: Spezifikation für spannungsregelbare Verteilungstransformatoren (VRDT)

Transformateurs de puissance - Partie 24: Spécification des transformateurs de distribution régulateurs de tension (VRDT)

L'IEC 60076-24:2020 s'applique aux transformateurs de moyenne puissance, de 25 kVA à 3 150 kVA, la tension la plus élevée pour le matériel allant jusqu'à 36 kV, ou dans les réseaux basse tension (BT) dont la tension la plus élevée pour le matériel atteint jusqu'à 1,1 kV, équipés de dispositifs régulateurs de tension. Les transformateurs de distribution régulateurs de tension sont des transformateurs équipés de composants qui permettent de commander la tension primaire ou secondaire pour les besoins de la régulation de la tension en charge. L'installation d'un VRDT a pour objectif principal de réguler le niveau de tension du réseau basse tension (400 V), afin d'éviter tout dépassement des limites définies par les normes ou réglementations pertinentes. Le VRDT doit fonctionner correctement en tant que transformateur abaisseur et élévateur. Les transformateurs couverts par le présent document sont conformes aux exigences pertinentes définies dans l'IEC 60076 (toutes les parties) et sont également conformes aux Normes européennes EN 50160 et EN 50588-1, sauf indication contraire dans le présent document.

Močnostni transformatorji - 24. del: Specifikacija distribucijskh transformatorjev z regulacijo napetosti (VRDT)

General Information

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Drafting Committee
Current Stage
6060 - Document made available - Publishing
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Completion Date

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Standards Content (Sample)

SIST EN IEC 60076-24:2020
Močnostni transformatorji - 24. del: Specifikacija distribucijskh transformatorjev z
regulacijo napetosti (VRDT)
Power transformers - Part 24: Specification of Voltage Regulating Distribution
Transformers (VRDT)
Ta slovenski standard je istoveten z: EN IEC 60076-24:2020
29.180 Transformatorji. Dušilke Transformers. Reactors
SIST EN IEC 60076-24:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60076-24:2020

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SIST EN IEC 60076-24:2020



September 2020
ICS 29.180

English Version
Power transformers - Part 24: Specification of voltage regulating
distribution transformers (VRDT)
(IEC 60076-24:2020)
Transformateurs de puissance - Partie 24: Spécification des Leistungstransformatoren - Teil 24: Spezifikation für
transformateurs de distribution régulateurs de tension spannungsregelnde Verteilungstransformatoren (VRDT)
(VRDT) (IEC 60076-24:2020)
(IEC 60076-24:2020)
This European Standard was approved by CENELEC on 2020-08-13. 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60076-24:2020 E

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SIST EN IEC 60076-24:2020
EN IEC 60076-24:2020 (E)
European foreword
The text of document 14/1050/FDIS, future edition 1 of IEC 60076-24, prepared by IEC/TC 14 "Power
transformers" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN IEC 60076-24:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-05-13
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-08-13
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.

Endorsement notice
The text of the International Standard IEC 60076-24:2020 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
IEC 60068-2 (series) NOTE Harmonized as EN IEC 60068-2 (series)
IEC 60076-13 NOTE Harmonized as EN 60076-13


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SIST EN IEC 60076-24:2020
EN IEC 60076-24:2020 (E)
Annex ZA

Normative references to international publications with their
corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-1 - Environmental testing - Part 2-1: Tests - EN 60068-2-1 -
Test A: Cold
IEC 60068-2-2 - Environmental tes

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