EN 60076-14:2013
(Main)Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
IEC 60076-14:2013 applies to liquid-immersed power transformers employing either high-temperature insulation or combinations of high-temperature and conventional insulation, operating at temperatures above conventional limits. It is applicable to: - power transformers in accordance with IEC 60076-1; - convertor transformers according to IEC 61378 series; - transformers for wind turbine applications in accordance with IEC 60076-16; - arc furnace transformers; - reactors in accordance with IEC 60076-6. This part of IEC 60076 may be applicable as a reference for the use of high-temperature insulation materials in other types of transformers and reactors. This first edition of IEC 60076-14 cancels and replaces the second edition of the Technical Specification IEC/TS 60076-14 published in 2009. It constitutes a technical revision.
Leistungstransformatoren - Teil 14: Flüssigkeitsgefüllte Leistungstransformatoren mit Hochtemperatur-Isolierstoffen
Transformateurs de puissance - Partie 14: Transformateurs de puissance immergés dans du liquide utilisant des matériaux d'isolation haute température
La CEI 60076-14:2013 s'applique aux transformateurs immergés dans un liquide qui utilisent soit des isolants haute température soit des combinaisons d'isolants conventionnels et haute température, fonctionnant à des températures au-dessus des limites conventionnelles. Elle s'applique aux: - transformateurs de puissance conformes à la norme CEI 60076-1; - transformateurs de convertisseur conformes à la série CEI 61378; - transformateurs pour applications éoliennes conformes à la norme CEI 60076-16; - transformateurs de four à arc; - bobines d'inductance conformes à la norme CEI 60076-6. La présente partie de la norme CEI 60076 peut s'appliquer comme référence pour l'utilisation de matériaux isolants haute température dans d'autres types de transformateurs et bobines d'inductance. Cette première édition de la CEI 60076-14 annule et remplace la deuxième édition de la Spécification technique CEI/TS 60076-14 publiée en 2009. Elle constitue une révision technique.
Močnostni transformatorji - 14. del: V tekočino potopljeni močnostni transformatorji z vgrajenimi visokotemperaturnimi izolacijskimi materiali
Ta del standarda IEC 60076 se uporablja za v tekočino potopljene močnostne transformatorje z vgrajeno visokotemperaturno izolacijo ali kombinacijami visokotemperaturne izolacije in konvencionalne izolacije, ki delujejo pri temperaturah, ki presegajo običajne mejne vrednosti. Velja za: – močnostne transformatorje v skladu s standardom IEC 60076-1; – konvertorske transformatorje v skladu s skupino standardov IEC 61378; – transformatorje za uporabo z vetrnimi turbinami v skladu s standardom IEC 60076-16; – transformatorje obločnih peči; – reaktorje v skladu s standardom IEC 60076-6. Ta del standarda IEC 60076 se lahko uporablja kot referenčno besedilo za uporabo visokotemperaturnih izolacijskih materialov v drugih vrstah transformatorjev in reaktorjev.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2014
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WUDQVIRUPDWRUML]YJUDMHQLPLYLVRNRWHPSHUDWXUQLPLL]RODFLMVNLPLPDWHULDOL
Power transformers - Part 14: Liquid-immersed power transformers using high-
temperature insulation materials
/
Transformateurs de puissance - Partie 14: Transformateurs de puissance immergés
dans du liquide utilisant des matériaux d'isolation haute température
Ta slovenski standard je istoveten z: EN 60076-14:2013
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 60076-14
NORME EUROPÉENNE
October 2013
EUROPÄISCHE NORM
ICS 29.180
English version
Power transformers -
Part 14: Liquid-immersed power transformers
using high-temperature insulation materials
(IEC 60076-14:2013)
Transformateurs de puissance - Leistungstransformatoren -
Partie 14: Transformateurs de puissance Teil 14: Flüssigkeitsgefüllte
immergés dans du liquide utilisant des Leistungstransformatoren mit
matériaux d'isolation haute température Hochtemperatur-Isolierstoffen
(CEI 60076-14:2013) (IEC 60076-14:2013)
This European Standard was approved by CENELEC on 2013-10-21. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
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
© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60076-14:2013 E
Foreword
The text of document 14/755/FDIS, future edition 1 of IEC 60076-14, prepared by IEC/TC 14 "Power
transformers" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
– latest date by which the document has to be implemented at (dop) 2014-07-21
national level by publication of an identical national
standard or by endorsement
– latest date by which the national standards conflicting with (dow) 2016-10-21
the 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 [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60076-14:2013 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 60076-4 NOTE Harmonized in EN 60076-4.
IEC 60216-1 NOTE Harmonized as EN 60216-1.
IEC 60317 NOTE Harmonized in EN 60317 series.
IEC 60422 NOTE Harmonized as EN 60422.
IEC 60505 NOTE Harmonized as EN 60505.
IEC 60567 NOTE Harmonized as EN 60567.
IEC 60599 NOTE Harmonized as EN 60599.
IEC 60641-3 NOTE Harmonized in EN 60641-3 series.
IEC 60674-3 NOTE Harmonized in EN 60674-3 series.
IEC 60819-3 NOTE Harmonized in EN 60819-3 series.
IEC 60851-4 NOTE Harmonized as EN 60851-4.
IEC 60867 NOTE Harmonized as EN 60867.
IEC 60893-3 NOTE Harmonized in EN 60893-3 series.
- 3 - EN 60076-14:2013
IEC 60970 NOTE Harmonized as EN 60970.
IEC 61039 NOTE Harmonized as EN 61039.
IEC 61100 NOTE Harmonized as EN 61100.
IEC 61203 NOTE Harmonized as EN 61203.
IEC 61212-3 NOTE Harmonized in EN 61212-3 series.
IEC 61629-1 NOTE Harmonized as EN 61629-1.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
Publication Year Title EN/HD Year
IEC 60076-1 - Power transformers - EN 60076-1 -
Part 1: General
IEC 60076-2 - Power transformers - EN 60076-2 -
Part 2: Temperature rise for liquid-
immersed transformers
IEC 60076-5 - Power transformers - EN 60076-5 -
Part 5: Ability to withstand short circuit
IEC 60076-7 - Power transformers - - -
Part 7: Loading guide for oil-immersed
power transformers
IEC 60076-16 - Power transformers - EN 60076-16 -
Part 16: Transformers for wind turbines
applications
IEC 60085 - Electrical insulation - Thermal evaluation EN 60085 -
and designation
IEC 60137 - Insulated bushings for alternating voltages EN 60137 -
above 1 000 V
IEC 60214-1 - Tap-changers - EN 60214-1 -
Part 1: Performance requirements and test
methods
IEC 60296 - Fluids for electrotechnical applications - EN 60296 -
Unused mineral insulating oils for
transformers and switchgear
IEC 60836 - Specifications for unused silicone insulating EN 60836 -
liquids for electrotechnical purposes
IEC 61099 - Insulating liquids - Specifications for EN 61099 -
unused synthetic organic esters for
electrical purposes
IEC 61378-1 - Convertor transformers - EN 61378-1 -
Part 1: Transformers for industrial
applications
IEC 61378-2 - Convertor transformers - EN 61378-2 -
Part 2: Transformers for HVDC applications
IEC 60076-14 ®
Edition 1.0 2013-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Power transformers –
Part 14: Liquid-immersed power transformers using high-temperature insulation
materials
Transformateurs de puissance –
Partie 14: Transformateurs de puissance immergés dans du liquide utilisant des
matériaux isolants haute température
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XA
ICS 29.180 ISBN 978-2-8322-1096-3
– 2 – 60076-14 © IEC:2013
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Insulation systems . 11
4.1 General . 11
4.2 Winding insulation types . 12
4.2.1 General . 12
4.2.2 Summary of winding/system insulation types . 13
4.2.3 Hybrid winding types . 13
4.2.4 High-temperature insulation winding . 16
5 Temperature rise limits . 17
5.1 General . 17
5.2 Thermally upgraded paper (TUP) . 19
5.3 Cellulose used in ester liquid . 19
6 Components and materials . 19
6.1 General . 19
6.2 Leads and cables . 19
7 Special design considerations . 20
7.1 Short-circuit considerations . 20
7.2 Dielectric requirements . 20
7.3 Temperature requirements . 20
7.4 Overload . 22
8 Required information . 23
8.1 Information to be provided by the purchaser . 23
8.1.1 Ambient temperatures and loading cycle . 23
8.1.2 Other unusual service conditions . 23
8.2 Information to be provided by the manufacturer . 23
8.2.1 Thermal characteristics . 23
8.2.2 Guarantees . 23
9 Rating plate and additional information . 23
9.1 Rating plate . 23
9.2 Transformer manual . 24
10 Test requirements. 24
10.1 Routine, type and special tests . 24
10.2 Dissolved gas analysis . 24
10.3 OD cooled compact transformers . 24
10.4 Evaluation of temperature-rise tests for windings with multiple hot-spots . 24
10.5 Dielectric type tests . 26
11 Supervision, diagnostics, and maintenance . 27
11.1 General . 27
11.2 Transformers filled with mineral insulating oil . 27
11.3 Transformers filled with high-temperature insulating liquids . 27
Annex A (informative) Insulation materials . 28
60076-14 © IEC:2013 – 3 –
Annex B (informative) Rapid temperature increase and bubble generation . 35
Annex C (informative) Ester liquid and cellulose . 38
Annex D (normative) Insulation system coding . 52
Bibliography . 55
Figure 1 – Example of semi-hybrid insulation windings . 14
Figure 2 – Example of a mixed hybrid insulation winding . 15
Figure 3 – Example of full hybrid insulation windings . 16
Figure 4 – Example of high-temperature insulation system . 17
Figure 5 – Temperature gradient conductor to liquid . 21
Figure 6 – Modified temperature diagram for windings with mixed hybrid insulation
system . 26
Figure A.1 – Example of a thermal endurance graph .
...
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