EN IEC 62271-211:2024
(Main)High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
IEC 62271-211:2024 is applicable to single- and three-phase direct connections between gas-insulated metal-enclosed switchgear (GIS) for rated voltages above 52 kV and transformer arrangements to establish electrical and mechanical interchange ability and to determine the limits of supply for the transformer connection. This second edition cancels and replaces the first edition of IEC 62271-211:2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) re-numbering of clauses according to IEC 62271-1:2017, b) Clause 3: updating definition about bushing (3.1), updating some pressure definitions (3.6, 3.7, 3.8, 3.9), rewording definition about proctor density (3.11), new term very-fast-front overvoltage (3.12), c) Clause 5 (former clause 4): add a subclause 5.1 General, according to IEC 62271-1:2017 and IEC 62271-203:2022, 1) subclause 5.5: new first paragraph, rewording second paragraph, 2) subclause 5.8: modify the term "Rated duration of thermal short-time current" of the bushing, d) Clause 6 (former Clause 5): restructure and rewording of subclauses: 1) 6.1 (former 5.3): requirements about gas and vacuum tightness of the transformer bushing 2) 6.3 (former 5.2): harmonization with IEC 62271-203:2022 about typical maximum pressure in service for SF6, other gases and gas mixtures, 3) 6.4 (former 5.8), rewording 4) 6.5 (former 5.1), some rewording and modification 5) 6.6 (former 5.4), some rewording, updated references 6) 6.7 (former 5.5), some rewording 7) 6.8 (former 5.6), some rewording 8) 6.9 (former 5.7), slight rewording, e) Clause 7 (former clause 6) type tests: some rewording and clarifications about references, f) Clause 8 (former clause 7) routine tests: 1) 8.2 (former 7.2): add a paragraph about SF6-mixtures and other gases than SF6, 2) 8.3 (former 7.3): update reference to relevant on-site test according to IEC 62271‑203:2022, g) Clause 9 Guide to the selection of switchgear and controlgear (new): informative, to have a reference to IEC 62271-203:2022, h) Clause 11 (former 10): updated headline and updated reference according to IEC 62271‑1:2017, i) new Clauses 12 Safety and 13 Environmental aspects: Adding of references to safety and environmental aspects, j) correction of errors in Corrigendum 2 of IEC 62271-211:2017, k) modified orientation of Figure 1 to Figure 4 for easier reading of the tables.
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 211: Direkte Verbindungen zwischen Leistungstransformatoren und gasisolierten metallgekapselten Schaltanlagen für Bemessungsspannungen über 52 kV
Appareillage à haute tension - Partie 211: Raccordements directs entre transformateurs de puissance et appareillage sous enveloppe métallique à isolation gazeuse de tensions assignées supérieures à 52 kV
L'IEC 62271-211:2024 s'applique aux raccordements directs monophasés et triphasés entre l'appareillage sous enveloppe métallique à isolation gazeuse (GIS) pour des tensions assignées supérieures à 52 kV et des dispositions de transformateurs pour établir des possibilités d'échanges électriques et mécaniques et pour déterminer les limites d'alimentation pour le raccordement du transformateur. Cette seconde édition annule et remplace la première édition de l'IEC 62271-211:2014. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) renumérotation des articles selon l'IEC 62271-1:2017; b) Article 3: mise à jour de la définition de la traversée (3.1), mise à jour de certaines définitions relatives à la pression (3.6, 3.7, 3.8, 3.9), reformulation de la définition de la densité proctor (3.11), nouveau terme surtension à front très rapide (3.12); c) Article 5 (ancien Article 4): ajout d'un 5.1 Généralités, conformément à l'IEC 62271-1:2017 et l'IEC 62271-203:2022; 1) 5.5: nouveau premier alinéa, reformulation du deuxième alinéa; 2) 5.8: modification du terme "durée assignée du courant de courte durée thermique" de la traversée; d) Article 6 (ancien Article 7): restructuration et reformulation des paragraphes: 1) 6.1 (ancien 5.3): exigences concernant l'étanchéité du gaz et du vide de la traversée du transformateur; 2) 6.3 (ancien 5.2): harmonisation avec l'IEC 62271-203:2022 en ce qui concerne la pression maximale type en service pour le SF6, d'autres gaz et les mélanges de gaz; 3) 6.4 (ancien 5.8): reformulation; 4) 6.5 (ancien 5.1): reformulation partielle et modification; 5) 6.6 (ancien 5.4): reformulation partielle, mise à jour de références; 6) 6.7 (ancien 5.5): reformulation partielle; 7) 6.8 (ancien 5.6): reformulation partielle; 8) 6.9 (ancien 5.7): légère reformulation; e) Article 7 (ancien Article 6), essais de type: reformulation partielle et clarifications des références; f) Article 8 (ancien Article 7), essais individuels de série: 1) 8.2 (ancien 7.2): ajout d'un alinéa concernant les mélanges de SF6 et d'autres gaz que le SF6; 2) 8.3 (ancien 7.3): mise à jour de la référence pour l'essai sur site applicable selon l'IEC 62271‑203:2022; g) Article 9 Guide pour le choix de l'appareillage (nouveau): informatif, à des fins de référence à l'IEC 62271-203:2022; h) Article 11 (ancien Article 10): mise à jour du titre et mise à jour de la référence conformément à l'IEC 62271‑1:2017; i) nouveaux Articles 12 Sécurité et 13 Aspects liés à l'environnement: ajout de références à la sécurité et aux aspects liés à l'environnement; j) correction d'erreurs dans le Corrigendum 2 de l'IEC 62271-211:2017; k) modification de l'orientation des Figures 1 à 4 afin de faciliter la lecture des tableaux.
Visokonapetostne stikalne in krmilne naprave - 211. del: Neposredna povezava med elektroenergetskimi transformatorji in plinsko izoliranimi stikalnimi napravami v kovinskih ohišjih za naznačene napetosti nad 52 kV (IEC 62271-211:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2024
Visokonapetostne stikalne in krmilne naprave - 211. del: Neposredna povezava
med elektroenergetskimi transformatorji in plinsko izoliranimi stikalnimi
napravami v kovinskih ohišjih za naznačene napetosti nad 52 kV (IEC 62271-
211:2024)
High-voltage switchgear and controlgear - Part 211: Direct connection between power
transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52
kV (IEC 62271-211:2024)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 211: Direkte Verbindungen
zwischen Leistungstransformatoren und gasisolierten metallgekapselten Schaltanlagen
für Bemessungsspannungen über 52 kV (IEC 62271-211:2024)
Appareillage à haute tension - Partie 211: Raccordements directs entre transformateurs
de puissance et appareillage sous enveloppe métallique à isolation gazeuse de tension
assignée supérieure à 52 kV (IEC 62271-211:2024)
Ta slovenski standard je istoveten z: EN IEC 62271-211:2024
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 62271-211
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2024
ICS 29.130.10 Supersedes EN 62271-211:2014;
EN 62271-211:2014/AC:2015;
EN 62271-211:2014/AC:2017-09
English Version
High-voltage switchgear and controlgear - Part 211: Direct
connection between power transformers and gas-insulated
metal-enclosed switchgear for rated voltages above 52 kV
(IEC 62271-211:2024)
Appareillage à haute tension - Partie 211: Raccordements Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil
directs entre transformateurs de puissance et appareillage 211: Direkte Verbindungen zwischen
sous enveloppe métallique à isolation gazeuse de tensions Leistungstransformatoren und gasisolierten
assignées supérieures à 52 kV metallgekapselten Schaltanlagen für
(IEC 62271-211:2024) Bemessungsspannungen über 52 kV
(IEC 62271-211:2024)
This European Standard was approved by CENELEC on 2024-10-09. 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,
Türkiye 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62271-211:2024 E
European foreword
The text of document 17C/935/FDIS, future edition 2 of IEC 62271-211, prepared by SC 17C
"Assemblies" of IEC/TC 17 "High-voltage switchgear and controlgear" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 62271-211:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-11-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-11-30
document have to be withdrawn
This document supersedes EN 62271-211:2014 and all of its amendments and corrigenda (if any).
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 62271-211:2024 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 standard indicated:
IEC 62271-209:2019 NOTE Approved as EN IEC 62271-209:2019 (not modified)
Approved as EN IEC 62271-209:2019/A1:2022 (not
IEC 62271-209:2019/AMD1:2022 NOTE
modified)
ISO 17892-2:2014 NOTE Approved as EN ISO 17892-2:2014 (not modified)
IEC 60071-1:2019 NOTE Approved as EN IEC 60071-1:2019 (not modified)
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60076 series Power transformers EN 60076 series
IEC 60076-1 2011 Power transformers - Part 1: General EN 60076-1 2011
IEC 60137 2017 Insulated bushings for alternating voltages EN 60137 2017
above 1000 V
IEC 61936-1 2021 Power installations exceeding 1 kV AC and EN IEC 61936-1 2021
1,5 kV DC - Part 1: AC
IEC 62271-1 2017 High-voltage switchgear and controlgear - EN 62271-1 2017
Part 1: Common specifications for
alternating current switchgear and
controlgear
+ AMD1 2021 + A1 2021
IEC 62271-203 2022 High-voltage switchgear and controlgear - EN IEC 62271-203 2022
Part 203: AC gas-insulated metal-enclosed
switchgear for rated voltages above 52 kV
IEC 62271-207 2023 High-voltage switchgear and controlgear - EN IEC 62271-207 2023
Part 207: Seismic qualification for gas-
insulated switchgear assemblies, metal
enclosed and solid-insulation enclosed
switchgear for rated voltages above 1 kV
IEC 62271-211 ®
Edition 2.0 2024-09
INTERNATIONAL
STANDARD
High-voltage switchgear and controlgear –
Part 211: Direct connection between power transformers and gas-insulated
metal-enclosed switchgear for rated voltages above 52 kV
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.130.10 ISBN 978-2-8322-9578-6
– 2 – IEC 62271-211:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Normal and special service conditions . 10
4.1 Normal service conditions . 10
4.2 Special service conditions . 10
5 Ratings . 10
5.1 General . 10
5.2 Rated voltage (U ) . 10
r
5.3 Rated insulation level (U , U , U ) . 10
d p s
5.4 Rated frequency (f ) . 10
r
5.5 Rated continuous current (I ) . 11
r
5.6 Rated short-time withstand current (I ) and rated thermal short-time
k
current (I ) . 11
th
5.7 Rated peak withstand current (I ) and rated dynamic current (I ) . 11
p d
5.8 Rated duration of short-circuit (t ) and of thermal short-time current (t ) . 11
k th
6 Design and construction . 11
6.1 Gas and vacuum tightness . 11
6.2 Gas pressure for insulation of the bushing inside the gas-insulated
switchgear (GIS) enclosure . 12
6.3 Pressure withstands requirements . 12
6.4 Standard dimensions and tolerances. 12
6.4.1 General . 12
6.4.2 Single-phase direct connection between oil-filled transformer and
switchgear . 13
6.4.3 Three-phase direct connection between oil-filled transformer and
switchgear . 13
6.4.4 Connection between gas-insulated transformer and switchgear . 13
6.4.5 Transformer tolerances . 13
6.4.6 Mounting of the transformer on its foundation . 13
6.5 Limits of supply . 13
6.6 Mechanical forces applied on the connection interface . 15
6.7 Mechanical forces applied on the bushing flange . 15
6.8 Horizontal and vertical displacement . 17
6.9 Vibrations . 17
7 Type tests . 17
7.1 General . 17
7.2 Dielectric tests . 17
7.2.1 Dielectric tests of bushing . 17
7.2.2 Dielectric tests of transformer connection in a single-phase enclosure . 18
7.2.3 Dielectric tests of transformer connection in a three-phase enclosure . 18
7.3 Cantilever loads withstand tests . 18
7.4 Gas tightness tests . 18
8 Routine tests . 18
IEC 62271-211:2024 © IEC 2024 – 3 –
8.1 General . 18
8.2 External pressure test of the bushing . 18
8.3 Tightness tests . 19
9 Guide to the selection of switchgear and controlgear (informative) . 19
10 Information to be given with enquiries, tenders and orders (informative) . 19
11 Transport, storage, installation, operating instructions and maintenance. 19
12 Safety . 19
13 Environmental aspects . 20
Bibliography . 25
Figure 1 – Typical direct connection between power transformer and gas-insulated
metal-enclosed switchgear . 21
Figure 2 – Standard dimensions for typical direct connection between power
...
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