SIST-TS CLC/TS 60034-18-34:2005
(Main)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/TS 60034-18-34:2000)
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/TS 60034-18-34:2000)
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 - Funktionelle Bewertung von Isoliersystemen - Teil 18-34: Prüfverfahren für Wicklungen mit vorgeformten Elementen - Bewertung der thermomechanischen Belastbarkeit (IEC/TS 60034-18-34:2000)
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 (CEI/TS 60034-18-34:2000)
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/TS 60034-18-34:2000)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST-TS CLC/TS 60034-18-34:2005
01-junij-2005
(OHNWULþQLURWDFLMVNLVWURMLGHO )XQNFLRQDOQRYUHGQRWHQMHL]RODFLMVNLK
VLVWHPRY3UHVNXVQLSRVWRSNL]DSUHGKRGQRREOLNRYDQDQDYLWMD9UHGQRWHQMH
WRSORWQRPHKDQVNHY]GUåOMLYRVWLL]RODFLMVNLKVLVWHPRY ,(&76
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/TS 60034-18-34:2000)
Drehende elektrische Maschinen - Funktionelle Bewertung von Isoliersystemen - Teil 18-
34: Prüfverfahren für Wicklungen mit vorgeformten Elementen - Bewertung der
thermomechanischen Belastbarkeit (IEC/TS 60034-18-34:2000)
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 (CEI/TS 60034-18-34:2000)
Ta slovenski standard je istoveten z: CLC/TS 60034-18-34:2004
ICS:
29.080.30 Izolacijski sistemi Insulation systems
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
SIST-TS CLC/TS 60034-18-34:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST-TS CLC/TS 60034-18-34:2005
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SIST-TS CLC/TS 60034-18-34:2005
TECHNICAL SPECIFICATION CLC/TS 60034-18-34
SPECIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION September 2004
ICS 29.080.01; 29.160.01
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/TS 60034-18-34:2000)
Machines électriques tournantes Drehende elektrische Maschinen -
Partie 18-34: Evaluation fonctionnelle Funktionelle Bewertung von
des systèmes d'isolation - Isoliersystemen
Procédures d'essai Teil 18-34: Prüfverfahren für Wicklungen
pour enroulements préformés - mit vorgeformten Elementen -
Evaluation de l'endurance Bewertung der thermomechanischen
thermomécanique Belastbarkeit
des systèmes d'isolation (IEC/TS 60034-18-34:2000)
(CEI/TS 60034-18-34:2000)
This Technical Specification was approved by CENELEC on 2004-07-03.
CENELEC members are required to announce the existence of this TS in the same way as for an EN and to
make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting
national standards in force.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TS 60034-18-34:2004 E
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SIST-TS CLC/TS 60034-18-34:2005
CLC/TS 60034-18-34:2004 - 2 -
Foreword
The text of the Technical Specification IEC/TS 60034-18-34:2000, prepared by IEC TC 2, Rotating
machinery, was submitted to the formal vote and was approved by CENELEC as
CLC/TS 60034-18-34 on 2004-07-03 without any modification.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2005-01-03
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the Technical Specification IEC/TS 60034-18-34:2000 was approved by CENELEC as a
Technical Specification without any modification.
__________
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SIST-TS CLC/TS 60034-18-34:2005
- 3 - CLC/TS 60034-18-34:2004
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 Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1)
IEC 60034-1 (mod) 1996 Rotating electrical machines EN 60034-1 1998
A1 1997 Part 1: Rating and performance A1 1998
A2 1999 A2 1999
+ A 11 2002
IEC 60034-15 1995 Part 15: Impulse voltage withstand levels EN 60034-15 1996
of rotating a.c. machines with form-
wound stator coils
IEC 60034-18-1 1992 Part 18: Functional evaluation of EN 60034-18-1 1994
+ corr. August 1992 insulation systems
Section 1: General guidelines
IEC/TR 60034-18-32 1995 Part 18-32: Functional evaluation of CLC/TR 60034-18-32 2004
insulation systems - Test procedures for
form-wound windings - Electrical
evaluation of insulation systems used in
machines up to and including 50 MVA
and 15 kV
IEC 60243-1 1998 Electrical strength of insulating materials EN 60243-1 1998
- Test methods
Part 1: Tests at power frequencies
IEC 60270 1981 Partial discharge measurements - -
IEC/TR 60894 1987 Guide for test procedure for the - -
measurement of loss tangent of coils and
bars for machine windings
1)
EN 60034-1:1998 is superseded by EN 60034-1:2004, which is based on IEC 60034-1:2004.
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SIST-TS CLC/TS 60034-18-34:2005
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SIST-TS CLC/TS 60034-18-34:2005
SPÉCIFICATION CEI
TECHNIQUE IEC
TS 60034-18-34
TECHNICAL
Première édition
SPECIFICATION
First edition
2000-01
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
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 2000 Droits de reproduction réservés Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
Q
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
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SIST-TS CLC/TS 60034-18-34:2005
TS 60034-18-34 © IEC:2000 – 3 –
CONTENTS
Page
FOREWORD . 5
INTRODUCTION .9
Clause
1 Scope . 11
2 Normative references . 11
3 General considerations. 13
3.1 Relationship to IEC 60034-18-1. 13
3.2 Thermomechanical ageing process . 13
3.3 Designation of test procedure. 13
3.4 Reference insulation system. 13
4 Test specimens and test objects. 15
4.1 Construction . 15
4.2 Number of test specimens. 15
5 Heating and cooling cycles . 15
5.1 Temperature and length of heating and cooling cycles . 15
5.2 Number of cycles . 17
6 Test procedure 1 for bars/coils in model slots . 17
6.1 Model slot . 17
6.2 Support for end parts of test objects. 17
6.3 Methods of heating. 17
6.4 Methods of cooling . 19
6.5 Initial quality assurance and diagnostic tests . 19
6.6 Diagnostic tests during cycling . 21
6.6.1 Recommended frequency of diagnostic tests . 21
6.6.2 Suggested diagnostic tests of individual bars/coils . 21
6.7 Final diagnostic tests . 21
7 Test procedure 2 for unrestrained bars/coils . 23
7.1 Positioning the bars/coils for test. 23
7.2 Method of heating . 23
7.3 Method of cooling. 23
7.4 Initial quality assurance and diagnostic tests . 23
7.5 Diagnostic tests during cycling . 25
7.5.1 Frequency of tests. 25
7.5.2 Type of suggested tests . 25
7.6 Final diagnostic tests . 25
8 Analysing and reporting. 25
Figure 1 – Details of test procedure . 29
Figure 2 – Heating and cooling cycle schedule . 31
Figure 3 – Example of the model slot with two bars . 33
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SIST-TS CLC/TS 60034-18-34:2005
TS 60034-18-34 © IEC:2000 – 5 –
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 IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this technical specification may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 60034-18-34, which is a technical specification, has been prepared by subcommittee 2J:
Classification of insulation systems for rotating machinery, of IEC technical committee 2:
Rotating machinery.
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SIST-TS CLC/TS 60034-18-34:2005
TS 60034-18-34 © IEC:2000 – 7 –
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
2J/66/CDV 2J/68/RVC
Full information on the voting for the approval of this technical specification can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
This technical specification constitutes part 18-34 of a series of publications dealing with the
functional evaluation of insulation systems of rotating electrical machines, the other parts
being:
IEC 60034-18-1: General guidelines
IEC 60034-18-21: Test procedures for wire-wound windings – Thermal evaluation and
classification
IEC 60034-18-22: Test procedures for wire-wound windings – Classification of changes and
insulation components substitutions
Test procedures for form-wound windings – Thermal evaluation and
IEC 60034-18-31:
classification of insulation systems used in machines up to and including 50 MVA and 15 kV
IEC 60034-18-32: Test procedures for form-wound windings – Electrical evaluation and
classification of insulation systems used in machines up to and including 50 MVA and 15 kV
IEC 60034-18-33: Test procedures for form-wound windings – Multifactor functional evaluation
– Endurance under combined thermal and electrical stresses of insulation systems used in
machines up to and including 50 MVA and 15 kV
Some parts are published as sections, some as International Standards or as technical
specifications or technical reports.
The committee has decided that the contents of this publication will remain unchanged until
2005. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
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SIST-TS CLC/TS 60034-18-34:2005
TS 60034-18-34 © IEC:2000 – 9 –
INTRODUCTION
IEC 60034-18-1 presents general guidelines for the evaluation and classification of insulation
systems used in rotating electrical machines.
This part 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.
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SIST-TS CLC/TS 60034-18-34:2005
TS 60034-18-34 © IEC:2000 – 11 –
ROTATING ELECTRICAL MACHINES –
Part 18-34: Functional evaluation of insulation systems –
Test procedures for form-wound windings –
Evaluation of thermomechanical endurance of insulation systems
1 Scope
This part of IEC 60034 gives test procedures for the evaluation of thermomechanical cycle
endurance of insulation systems for form-wound windings.
In this evaluation, it is preferred that the performance of a candidate system is compared to
that of a reference insulation system with proven service experience.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 60034. For dated references, subsequent amendments
to, or revisions of, any of these publications do not apply. However, parties to agreements
based on this part of IEC 60034 are encouraged to investigate the possibility of applying the
most recent editions of the normative documents indicated below. For undated references, the
latest edition of the normative document referred to applies. Members of IEC and ISO maintain
registers of currently valid International Standards.
IEC 60034-1:1996, Rotating electrical machines – Part 1: Rating and performance
Amendment 1 (1997)
*
Amendment 2 (1999)
IEC 60034-15:1995, Rotating electrical machines – Part 15: Impulse voltage withstand levels of
rotating a.c. machines with form-wound stator coils
IEC 60034-18-1:1992, Rotating electrical machines – Part 18: Functional evaluation of
insulation systems – Section 1: General guidelines
IEC 60034-18-32:1995, Rotating electrical machines – Part 18: Functional evaluation of
insulation systems – Section 32: Test procedures for form-wound windings – Electrical
evaluation of insulation systems used in machines up to and including 50 MVA and 15 kV
IEC 60243-1:1998, Electrical strength of insulating materials – Test methods – Part 1: Tests at
power frequencies
IEC 60270:1981, Partial discharge measurements
IEC TR 60894:1987, Guide for test procedure for the measurement of loss tangent of coils and
bars for machine windings
___________
*
There is a consolidated edition 10.2 (1999) which includes IEC 60034-1 (1996) as well as amendment 1 (1997)
and amendment 2 (1999).
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SIST-TS CLC/TS 60034-18-34:2005
TS 60034-18-34 © IEC:2000 – 13 –
3 General considerations
3.1 Relationship to IEC 60034-18-1
The principles of IEC 60034-18-1 should be followed, unless the recommendations of this part
indicate otherwise.
3.2 Thermomechanical ageing process
As a result of the thermomechanical cycling, six ageing processes can occur in the insulation
system of the windings:
a) loss of adhesion;
b) delamination between layers of the insulation;
c) delamination between a layer of the insulation and the conducting layer;
d) abrasion at the outer surface of the insulation;
e) circumferential cracking of the insulation (tape separation/girth cracking), especially in the
part extending from the slot:
f) mechanical damage to the insulation caused by distortion of the end turns of the winding.
3.3 Designation of test procedure
Depending upon which ageing processes are to be simulated, two test procedures will be
described.
Test procedure 1, in which the test bars/coils of the winding are assembled in model slots
simulating the conditions in an actual machine, including the supports at both ends of the
bars/coils.
Test procedure 2, in which the bars/coils are free to move, without the restraints caused by the
presence of model slots and end supports.
Test proc
...
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