EN 60034-18-34:2012

Rotating electrical machines - Part 18-34: Functional evaluation of insulation systems - Test procedures for form-wound windings - Evaluation of thermomechanical endurance of insulation systems

Deals with thermal cycling evaluation of insulation systems for form-wound windings. This kind of endurance is of special importance for long rotating machines ( especially indirectly cooled ) and machines that are exposed to a very large number of considerable load changes during normal operation.

Drehende elektrische Maschinen - Teil 18-34: Funktionelle Bewertung von Isoliersystemen - Prüfverfahren für Wicklungen mit vorgeformten Elementen - Thermomechanische Bewertung von Isoliersystemen

Machines électriques tournantes - Partie 18-34: Evaluation fonctionnelle des systèmes d’isolation - Procédures d’essai pour enroulement préformés - Evaluation de l'endurance thermomécanique des systèmes d'isolation

Concerne l'évaluation de la tenue au cyclage thermique des systèmes d'isolation à enroulements préformés. Ce type d'endurance est primordial pour les machines tournantes longues ( particulièrement celles à refroidissement indirect) et pour les machines soumises à un grand nombre de fortes variations de charge en fonctionnement normal

Električni rotacijski stroji - 18-34. del: Funkcionalno vrednotenje izolacijskih sistemov - Preskusni postopki za predhodno oblikovana navitja - Vrednotenje toplotno-mehanske vzdržljivosti izolacijskih sistemov (IEC 60034-18-34:2012)

Ta del standarda IEC 60034 določa preskusne postopke za vrednotenje toplotno-mehanske vzdržljivosti izolacijskih sistemov predhodno oblikovanih navitij. Pri tem vrednotenju se delovanje kandidatnega sistema primerja z delovanjem referenčnega izolacijskega sistema z dokazanimi izkušnjami pri uporabi.

General Information

• Status: Published
• Publication Date: 26-Jul-2012
• Withdrawal Date: 18-Jul-2015
• ICS: 29.160 - Rotating machinery
• Technical Committee: CLC/TC 2 - Rotating machinery
• Drafting Committee: IEC/TC 2 - IEC_TC_2
• Current Stage: 6060 - Document made available - Publishing
• Completion Date: 27-Jul-2012
• Ref Project: SIST EN 60034-18-34:2012 - Rotating electrical machines - Part 18-34: Functional evaluation of insulation systems - Test procedures for form-wound windings - Evaluation of thermomechanical endurance of insulation systems (IEC 60034-18-34:2012)

Relations

• Replaces: CLC/TS 60034-18-34:2004 - Rotating electrical machines - Part 18-34: Functional evaluation of insulation systems - Test procedures for form-wound windings - Evaluation of thermomechanical endurance of insulation systems
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2012
1DGRPHãþD
SIST-TS CLC/TS 60034-18-34:2005
(OHNWULþQLURWDFLMVNLVWURMLGHO)XQNFLRQDOQRYUHGQRWHQMHL]RODFLMVNLK
VLVWHPRY3UHVNXVQLSRVWRSNL]DSUHGKRGQRREOLNRYDQDQDYLWMD9UHGQRWHQMH
WRSORWQRPHKDQVNHY]GUåOMLYRVWLL]RODFLMVNLKVLVWHPRY,(&
Rotating electrical machines - Part 18-34: Functional evaluation of insulation systems -
Test procedures for form-wound windings - Evaluation of thermomechanical endurance
of insulation systems (IEC 60034-18-34:2012)
Drehende elektrische Maschinen - Teil 18-34: Funktionelle Bewertung von
Isoliersystemen - Prüfverfahren für Wicklungen mit vorgeformten Elementen -
Thermomechanische Bewertung von Isoliersystemen (IEC 60034-18-34:2012)
Machines électriques tournantes - Partie 18-34: Evaluation fonctionnelle des systèmes
d’isolation - Procédures d’essai pour enroulement préformés - Evaluation de l'endurance
thermomécanique des systèmes d'isolation (CEI 60034-18-34:2012)
Ta slovenski standard je istoveten z: EN 60034-18-34:2012
ICS:
29.080.30 Izolacijski sistemi Insulation systems
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60034-18-34
NORME EUROPÉENNE
July 2012
EUROPÄISCHE NORM
ICS 29.160 Supersedes CLC/TS 60034-18-34:2004

English version
Rotating electrical machines -
Part 18-34: Functional evaluation of insulation systems -
Test procedures for form-wound windings -
Evaluation of thermomechanical endurance of insulation systems
(IEC 60034-18-34:2012)
Machines électriques tournantes -  Drehende elektrische Maschinen -
Partie 18-34: Evaluation fonctionnelle des Teil 18-34: Funktionelle Bewertung von
systèmes d’isolation - Isoliersystemen -
Procédures d’essai pour enroulement Prüfverfahren für Wicklungen mit
préformés - vorgeformten Elementen -
Evaluation de l'endurance Thermomechanische Bewertung von
thermomécanique des systèmes Isoliersystemen
d'isolation (IEC 60034-18-34:2012)
(CEI 60034-18-34:2012)
This European Standard was approved by CENELEC on 2012-07-19. 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

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60034-18-34:2012 E

Foreword
The text of document 2/1660/FDIS, future edition 1 of IEC 60034-18-34, prepared by IEC/TC 2 "Rotating
machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2013-04-19
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-07-19
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes CLC/TS 60034-18-34:2004.
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 60034-18-34:2012 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 60034-18-34:2012
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 60028 1925 International standard of resistance for copper - -

IEC 60034-1 (mod) 2010 Rotating electrical machines - EN 60034-1 2010
Part 1: Rating and performance + corr. October 2010

IEC 60034-15 - Rotating electrical machines - EN 60034-15 -
Part 15: Impulse voltage withstand levels of
form-wound stator coils for rotating a.c.
machines
IEC 60034-18-1 - Rotating electrical machines - EN 60034-18-1 -
Part 18-1: Functional evaluation of insulation
systems - General guidelines
IEC 60034-18-32 2010 Rotating electrical machines - EN 60034-18-32 2010
Part 18-32: Functional evaluation of insulation
systems - Test procedures for form-wound
windings - Evaluation of electrical endurance

IEC/TS 60034-27 2006 Rotating electrical machines - CLC/TS 60034-27 2011
Part 27: Off-line partial discharge
measurements on the stator winding
insulation of rotating electrical machines

1)
IEC 60093 1980 Methods of test for volume resistivity and HD 429 S1 1983
surface resistivity of solid electrical insulating
materials
IEC/TR 60894 1987 Guide for a test procedure for the - -
+ corr. July 1987 measurement of loss tangent of coils and bars
for machine windings
1)
HD 429 S1 is superseded by EN 62631-1:2011, which is based on IEC 62631-1:2011.

IEC 60034-18-34 ®
Edition 1.0 2012-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rotating electrical machines –

Part 18-34: Functional evaluation of insulation systems – Test procedures for

form-wound windings – Evaluation of thermomechanical endurance of insulation

systems
Machines électriques tournantes –

Partie 18-34: Evaluation fonctionnelle des systèmes d’isolation – Procédures

d’essai pour enroulements préformés – Evaluation de l’endurance

thermomécanique des systèmes d’isolation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX P
ICS 29.160 ISBN 978-2-83220-116-9

– 2 – 60034-18-34 © IEC:2012
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references. 6
3 General considerations . 6
3.1 Relationship to IEC 60034-18-1 . 6
3.2 Thermomechanical ageing process . 7
3.3 Designation of test procedure . 7
3.4 Reference insulation system . 7
4 Test specimens and test objects . 7
4.1 Construction . 7
4.2 Number of test specimens . 8
5 Heating and cooling cycles . 8
5.1 Temperature and length of heating and cooling cycles . 8
5.2 Number of cycles . 10
6 Test procedure 1 for bars/coils in model slots . 10
6.1 Model slot . 10
6.2 Support for end parts of test objects . 11
6.3 Methods of heating . 11
6.4 Methods of cooling . 12
7 Test procedure 2 for unrestrained bars/coils. 12
7.1 Positioning the bars/coils for test . 12
7.2 Method of heating . 12
7.3 Methods of cooling . 13
8 Tests for qualification . 13
8.1 Initial quality control tests. 13
8.2 Suggested diagnostic tests on individual bars/coils . 13
8.3 Recommended frequency of diagnostic tests. 14
8.4 Criterion for qualification . 14
9 Analysis and reporting . 15

Figure 1 – Details of stator bar and coil definitions . 8
Figure 2 – Heating and cooling cycle schedule. 10
Figure 3 – Example of the model slot with two bars . 11

60034-18-34 © IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ROTATING ELECTRICAL MACHINES –

Part 18-34: Functional evaluation of insulation systems –
Test procedures for form-wound windings –
Evaluation of thermomechanical endurance of insulation systems

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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the latter.
5) IEC itself do
...