EN IEC 60076-22-8:2021

Power transformers - Part 22-8: Power transformer and reactor fittings - Devices suitable for use in communication networks

This part of IEC 60076-22 applies to a selection of accessories and fittings mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with or without conservator for indoor or outdoor installation. It outlines the operation requirements specific to each device as well as the data made available to the communication network and the type and routine test to be performed. The communication network is not part of the scope of this standard.

Leistungstransformatoren - Teil 22-8: Zubehörteile von Leistungstransformatoren und Drosselspulen - Einrichtungen mit Eignung zur Anwendung in Kommunikationsnetzen

Transformateurs de puissance - Partie 22-8: Accessoires pour transformateurs de puissance et bobines d'inductance - Dispositifs compatibles avec les réseaux de communication

L'IEC 60076-22:2021 s'applique à un ensemble d'accessoires installés sur des transformateurs de puissance immergés dans un liquide conformes à l'IEC 60076-1 et sur des bobines d'inductance conformes à l'IEC 60076-6 avec ou sans conservateur, destinés aux installations intérieures ou extérieures. Elle spécifie les exigences de fonctionnement spécifiques à chaque dispositif, les données mises à la disposition du réseau de communication, ainsi que les essais de type et les essais individuels de série à réaliser. Le réseau de communication ne relève pas du domaine d'application du présent document.

Močnostni transformatorji - 22-8. del: Močnostni transformatorji in dušilke - Naprave, primerne za uporabo v komunikacijskih omrežjih

General Information

• Status: Published
• Publication Date: 12-Aug-2021
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: CLC/TC 14 - Power transformers
• Drafting Committee: IEC/TC 14 - IEC_TC_14
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 13-Aug-2021
• Due Date: 18-Jan-2024
• Completion Date: 13-Aug-2021
• Ref Project: SIST EN IEC 60076-22-8:2021 - Power transformers - Part 22-8: Power transformer and reactor fittings - Devices suitable for use in communication networks

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2021
Močnostni transformatorji - 22-8. del: Močnostni transformatorji in dušilke -
Naprave, primerne za uporabo v komunikacijskih omrežjih
Power transformers - Part 22-8: Power transformer and reactor fittings - Devices suitable
for use in communication networks
Ta slovenski standard je istoveten z: EN IEC 60076-22-8:2021
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60076-22-8

NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2021
ICS 29.180
English Version
Power transformers - Part 22-8: Power transformer and reactor
fittings - Devices suitable for use in communication networks
(IEC 60076-22-8:2021)
Transformateurs de puissance - Partie 22-8: Accessoires Leistungstransformatoren - Teil 22-8: Zubehörteile von
pour transformateurs de puissance et bobines d'inductance Leistungstransformatoren und Drosselspulen -
- Dispositifs compatibles avec les réseaux de Einrichtungen mit Eignung zur Anwendung in
communication Kommunikationsnetzen
(IEC 60076-22-8:2021) (IEC 60076-22-8:2021)
This European Standard was approved by CENELEC on 2021-07-20. 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 IEC 60076-22-8:2021 E

European foreword
The text of document 14/1057/CDV, future edition 1 of IEC 60076-22-8, prepared by IEC/TC 14
"Power transformers" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
as EN IEC 60076-22-8:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-04-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-07-20
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.
Endorsement notice
The text of the International Standard IEC 60076-22-8:2021 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
indicated:
IEC 60076-1 NOTE Harmonized as EN 60076-1
IEC 60296 NOTE Harmonized as EN IEC 60296
ISO 9001 NOTE Harmonized as EN ISO 9001
Annex ZA
(normative)
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)
applies.
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 60076-22-1 2019 Power transformers - Part 22-1: Power EN IEC 60076-22-1 2019
transformer and reactor fittings -
Protective devices
IEC 60076-22-7 - Power transformers - Part 22-7: Power EN IEC 60076-22-7 -
transformer and reactor fittings -
Accessories and fittings
IEC 61000-6-4 - Electromagnetic compatibility (EMC) - EN IEC 61000-6-4 -
Part 6-4: Generic standards - Emission
standard for industrial environments
IEC 61000-6-5 - Electromagnetic compatibility (EMC) - EN 61000-6-5 -
Part 6-5: Generic standards - Immunity for
equipment used in power station and
substation environment
IEC 60076-22-8 ®
Edition 1.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Power transformers –
Part 22-8: Power transformer and reactor fittings – Devices suitable for use in

communication networks
Transformateurs de puissance –

Partie 22-8: Accessoires pour transformateurs de puissance et bobines

d'inductance – Dispositifs compatibles avec les réseaux de communication

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.180 ISBN 978-2-8322-9861-9

– 2 – IEC 60076-22-8:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General requirements . 8
4.1 Standard compliance . 8
4.2 Modbus requirements . 8
4.3 Type tests for EMC . 9
4.3.1 Emission . 9
4.3.2 Immunity . 9
4.4 Additional requirements . 9
4.4.1 Terminals . 9
4.4.2 Signal and control ports . 9
4.5 Cybersecurity . 10
5 Power supply . 10
6 Devices . 10
6.1 Gas and liquid actuated relays (Buchholz relays) . 10
6.1.1 General . 10
6.1.2 4 mA to 20 mA output . 10
6.1.3 Modbus output . 10
6.1.4 Tests . 11
6.2 Protective relays for hermetically sealed liquid-immersed equipment . 11
6.2.1 General . 11
6.2.2 4 mA to 20 mA output . 11
6.2.3 Modbus output . 11
6.2.4 Tests . 11
6.3 Direct reading dial type liquid level indicators . 12
6.3.1 General . 12
6.3.2 4 mA to 20 mA output . 12
6.3.3 Modbus output . 12
6.3.4 Tests . 12
6.4 Pressure relief devices with continuous pressure monitoring . 12
6.4.1 General . 12
6.4.2 4 mA to 20 mA output . 13
6.4.3 Modbus output . 13
6.4.4 Routine test . 13
6.5 Electronic pressure and pressure rise monitoring systems . 13
6.5.1 General . 13
6.5.2 4 mA to 20 mA output . 13
6.5.3 Modbus output . 13
6.5.4 Tests . 14
6.6 Direct reading mechanical dial type liquid temperature indicators . 15
6.6.1 General . 15
6.6.2 4 mA to 20 mA output . 15
6.6.3 Modbus output . 15

IEC 60076-22-8:2021 © IEC 2021 – 3 –
6.6.4 Routine tests . 15
6.7 Direct reading mechanical dial type winding temperature indicators . 15
6.7.1 General . 15
6.7.2 4 mA to 20 mA output . 15
6.7.3 Modbus output . 16
6.7.4 Routine tests . 16
6.8 Electrical and electronic liquid temperature measuring devices . 16
6.8.1 General . 16
6.8.2 4 mA to 20 mA output . 16
6.8.3 Modbus output . 16
6.8.4 Tests . 16
6.9 Electrical and electronic winding temperature simulating devices . 17
6.9.1 General . 17
6.9.2 4 mA to 20 mA output . 17
6.9.3 Modbus output . 17
6.9.4 Tests . 17
6.10 Dehydrating breathers, self-regenerating types . 18
6.10.1 General . 18
6.10.2
...