Rotating electrical machines - Part 18-32: Functional evaluation of insulation systems - Test procedures for form-wound windings - Evaluation of electrical endurance of insulation systems used in rotating electrical machines (IEC 60034-18-32:2010)

This part of IEC 60034-18 describes test procedures for the evaluation of electrical endurance of insulation systems for use in a.c. or d.c. rotating electrical machines using form-wound windings. The test procedures are comparative in nature, such that the performance of a candidate insulation system is compared to that of a reference insulation system with proven service experience. The test procedures are principally directed at the insulation systems in air-cooled machines but may also be used for evaluating parts of the insulation systems in hydrogen cooled machines. Note that the qualification procedures of inverter duty insulation systems for form-wound windings can be found in IEC 60034-18-42.

Drehende elektrische Maschinen - Teil 18-32: Funktionelle Bewertung von Isoliersystemen - Prüfverfahren für Wicklungen mit vorgeformten Elementen -- Bewertung der elektrischen Lebensdauer (IEC 60034-18-32:2010)

Machines électriques tournantes - Partie 18-32: Evaluation fonctionnelle des systèmes d'isolation - Procédures d'essai pour enroulements préformés - Evaluation de l'endurance électrique des systèmes d'isolation utilisés dans les machines électriques tournantes (CEI 60034-18-32:2010)

Cette publication a le statut d'un rapport technique - type 2

Električni rotacijski stroji - 18-32. del: Funkcionalno vrednotenje izolacijskih sistemov - Preskusni postopki za predhodno oblikovana navitja - Električno vrednotenje izolacijskih sistemov, ki se uporabljajo za stroje (IEC 60034-18-32:2010)

Ta del IEC 60034-18 opisuje preskusne postopke za električno vrednotenje izolacijskih sistemov za uporabo za električne rotacijske stroje izmeničnega ali enosmernega toka, ki uporabljajo predhodno oblikovana navitja. Preskusni postopki so primerljivi glede značilnosti, tako da se zmogljivost možnega izolacijskega sistema primerja z referenčnim izolacijskih sistemom s preizkušenim servisiranjem. Preskusni postopki so zlasti usmerjeni k izolacijskim sistemom v zračno hlajenih strojih, vendar se lahko uporabijo tudi za vrednotenje delov izolacijskih sistemov v strojih, ki so hlajeni z vodikom. Upoštevajte, da se kvalifikacijski postopki za obvezne izolacijske sisteme razsmernikov za predhodno oblikovana navitja nahajajo v IEC 60034-18-42.

General Information

Status
Published
Publication Date
16-Dec-2010
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
15-Dec-2010
Due Date
19-Feb-2011
Completion Date
17-Dec-2010

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SLOVENSKI STANDARD
SIST EN 60034-18-32:2011
01-januar-2011
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SIST-TP CLC/TR 60034-18-32:2005
(OHNWULþQLURWDFLMVNLVWURMLGHO)XQNFLRQDOQRYUHGQRWHQMHL]RODFLMVNLK
VLVWHPRY3UHVNXVQLSRVWRSNL]DSUHGKRGQRREOLNRYDQDQDYLWMD(OHNWULþQR
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Rotating electrical machines - Part 18-32: Functional evaluation of insulation systems -
Test procedures for form-wound windings - Evaluation of electrical endurance of
insulation systems used in rotating electrical machines (IEC 60034-18-32:2010)
Drehende elektrische Maschinen - Teil 18-32: Funktionelle Bewertung von
Isoliersystemen - Prüfverfahren für Wicklungen mit vorgeformten Elementen --
Bewertung der elektrischen Lebensdauer (IEC 60034-18-32:2010)
Machines électriques tournantes - Partie 18-32: Evaluation fonctionnelle des systèmes
d'isolation - Procédures d'essai pour enroulements préformés - Evaluation de
l'endurance électrique des systèmes d'isolation utilisés dans les machines électriques
tournantes (CEI 60034-18-32:2010)
Ta slovenski standard je istoveten z: EN 60034-18-32:2010
ICS:
29.080.30 Izolacijski sistemi Insulation systems
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
SIST EN 60034-18-32:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60034-18-32:2011

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SIST EN 60034-18-32:2011

EUROPEAN STANDARD
EN 60034-18-32

NORME EUROPÉENNE
December 2010
EUROPÄISCHE NORM

ICS 29.160 Supersedes CLC/TR 60034-18-32:2004


English version


Rotating electrical machines -
Part 18-32: Functional evaluation of insulation systems -
Test procedures for form-wound windings -
Evaluation by electrical endurance
(IEC 60034-18-32:2010)


Machines électriques tournantes -  Drehende elektrische Maschinen -
Partie 18-32: Evaluation fonctionnelle des Teil 18-32: Funktionelle Bewertung von
systèmes d'isolation - Isoliersystemen -
Procédures d'essai pour enroulements Prüfverfahren für Wicklungen mit
préformés - vorgeformten Elementen -
Evaluation par endurance électrique Bewertung der elektrischen Lebensdauer
(CEI 60034-18-32:2010) (IEC 60034-18-32:2010)




This European Standard was approved by CENELEC on 2010-12-01. 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 Central Secretariat 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 Central Secretariat 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland 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


© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60034-18-32:2010 E

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SIST EN 60034-18-32:2011
EN 60034-18-32:2010 - 2 -

Foreword
The text of document 2/1580/CDV, future edition 1 of IEC 60034-18-32, prepared by IEC TC 2, Rotating
machinery, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60034-18-32 on 2010-12-01.
This European Standard supersedes CLC/TR 60034-18-32:2004.
The main technical changes with regard to CLC/TR 60034-18-32:2004 are as follows:
a) simplification of clauses;
b) reduction in the number of test procedures;
c) inclusion of full bars and coils as test objects;
d) a new clause dealing with failures and failure criteria.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-12-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60034-18-32:2010 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:
1)
IEC/TS 60034-18-33 NOTE  Harmonized as CLC/TS 60034-18-33 .
1)
IEC/TS 60034-18-42 NOTE  Harmonized as CLC/TS 60034-18-42 .
__________

1)
At draft stage.

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SIST EN 60034-18-32:2011
- 3 - EN 60034-18-32:2010
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  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 60034-1 (mod) - Rotating electrical machines - EN 60034-1 -
Part 1: Rating and performance


IEC 60034-15 2009 Rotating electrical machines - EN 60034-15 2009
Part 15: Impulse voltage withstand levels of
form-wound stator coils for rotating a.c.
machines


IEC 60034-18-1 2010 Rotating electrical machines - EN 60034-18-1 2010
Part 18-1: Functional evaluation of insulation
systems - General guidelines

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SIST EN 60034-18-32:2011

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SIST EN 60034-18-32:2011
IEC 60034-18-32
®
Edition 1.0 2010-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Rotating electrical machines –
Part 18-32: Functional evaluation of insulation systems – Test procedures for
form-wound windings – Evaluation by electrical endurance

Machines électriques tournantes –
Partie 18-32: Evaluation fonctionnelle des systèmes d’isolation – Procédures
d’essai pour enroulements préformés – Evaluation par endurance électrique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
Q
CODE PRIX
ICS 29.160 ISBN 978-2-88912-225-7
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 60034-18-32:2011
– 2 – 60034-18-32 © IEC:2010
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope.6
2 Normative references .6
3 Terms and definitions .6
4 General considerations.7
4.1 Relationship to Part 1 of IEC 60034-18.7
4.2 Selection and designation of test procedures .7
4.3 Reference insulation system.7
4.4 Test procedures (IEC 61251).8
4.5 Extent of tests .8
5 Test objects.9
5.1 Construction of test objects .9
5.2 Number of turns .9
5.3 Number of test specimens .9
5.4 Initial quality control tests.9
6 Electrical ageing.9
6.1 Voltage levels and intended test lives.9
6.2 Test temperatures during electrical endurance testing.10
6.3 Ageing procedure for the mainwall insulation.10
6.4 Ageing procedure for the turn insulation .10
6.5 Maintenance of stress grading coatings.10
7 Diagnostic sub-cycle .11
7.1 General .11
7.2 Voltage tests .11
7.3 Other diagnostic tests.11
8 Failures .11
8.1 Failure location and verification .11
8.2 Failed specimen observations .12
8.3 Dimensional measurements.12
9 Functional evaluation of the data .12
9.1 General .12
9.2 Full evaluation.12
9.3 Reduced evaluation.14
9.4 Recommended data to be recorded .15
Bibliography.17

Figure 1 – Comparison of ageing data from candidate (C) and reference (R) insulation
systems showing qualification.13
Figure 2 – Comparison of ageing data from candidate and reference insulation systems
14
showing failure to qualify .
Figure 3 – Comparison of reduced evaluation test data from four separate candidate
systems with that from the reference system.15

Table 1 – Test procedure designations .7

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SIST EN 60034-18-32:2011
60034-18-32 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ROTATING ELECTRICAL MACHINES –

Part 18-32: Functional evaluation of insulation systems –
Test procedures for form-wound windings –
Evaluation by electrical endurance


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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60034-18-32 has been prepared by IEC technical committee 2:
Rotating machinery.
This first edition cancels and replaces IEC/TS 60034-18-32, published in 1995 and constitutes
a technical revision.
The main technical changes with regard to the previous technical specification are as follows.
a) simplification of clauses;
b) reduction in the number of test procedures;
c) inclusion of full bars and coils as test objects;
d) a new clause dealing with failures and failure criteria.

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SIST EN 60034-18-32:2011
– 4 – 60034-18-32 © IEC:2010
The text of this standard is based on the following documents:
CDV Report on voting
2/1580/CDV 2/1602/RVC

Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
A list of all parts of the IEC 60034 series, published under the general title Rotating electrical
machines, can be found on the IEC website.
NOTE A table of cross-references of all IEC TC 2 publications can be found in the IEC TC 2 dashboard on the
IEC website.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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SIST EN 60034-18-32:2011
60034-18-32 © IEC:2010 – 5 –
INTRODUCTION
Part 1 of IEC 60034-18 presents general principles for the evaluation of insulation systems
used in rotating electrical machines.
This standard deals exclusively with insulation systems for form-wound windings and
concentrates on electrical functional evaluation.

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SIST EN 60034-18-32:2011
– 6 – 60034-18-32 © IEC:2010
ROTATING ELECTRICAL MACHINES –

Part 18-32: Functional evaluation of insulation systems –
Test procedures for form-wound windings –
Evaluation by electrical endurance



1 Scope
This part of IEC 60034-18 describes test procedures for the evaluation of electrical endurance
of insulation systems for use in a.c. or d.c. rotating electrical machines using form-wound
windings. The test procedures are comparative in nature, such that the performance of a
candidate insulation system is compared to that of a reference insulation system with proven
service experience. The test procedures are principally directed at the insulation systems in
air-cooled machines but may also be used for evaluating parts of the insulation systems in
hydrogen cooled machines. Note that the qualification procedures of inverter duty insulation
systems for form-wound windings can be found in IEC 60034-18-42.
2 Normative references
The following referenced documents are indispensable for the application 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.
IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance
IEC 60034-15:2009, Rotating electrical machines – Part 15: Impulse voltage withstand
levels of form-wound stator coils for rotating a.c. machines
IEC 60034-18-1:2010, Rotating electrical machines – Part 18-1: Functional evaluation of in-
sulation systems – General guidelines
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
mainwall insulation
main electrical insulation that separates the conductors from the earthed stator/rotor core in
motor and generator windings
3.2
turn insulation
electrical insulation that covers each conductor in coils/bars
3.3
interturn insulation
electrical insulation that separates the conductor turns from each other in coils/bars
3.4
corona protection material
material which is used to coat a stator coil/bar within the slot portion of the stator core to
avoid slot discharges

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SIST EN 60034-18-32:2011
60034-18-32 © IEC:2010 – 7 –
3.5
stress grading material
material generally having a non-linear resistivity characteristic, applied to the endwindings of
stators to reduce the maximum surface electrical stress
4 General considerations
4.1 Relationship to Part 1 of IEC 60034-18
The principles of Part 1 of IEC 60034-18 should be followed unless the recommendations of
this International Standard indicate otherwise.
4.2 Selection and designation of test procedures
One or more of the procedures in this International Standard should be suitable for the
majority of evaluations. Evaluation is usually performed by the manufacturer of the
machine/coils or by a third party laboratory. It is the manufacturer’s responsibility to justify the
most suitable procedure in Table 1 on the basis of past experience and knowledge of the
insulation systems to be compared.
The test procedure should be selected from Table 1 and designated by IEC 60034-18-32
procedure N, where N is the designation given in the Table 1. Subclauses 4.3, 4.4 and 4.5
...

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