CLC/TR 60034-18-33:2004

SLOVENSKI STANDARD
01-junij-2005
(OHNWULþQLURWDFLMVNLVWURMLGHO)XQNFLRQDOQRYUHGQRWHQMHL]RODFLMVNLK
VLVWHPRY3UHVNXVQLSRVWRSNL]DSUHGKRGQRREOLNRYDQDQDYLWMD)XQNFLRQDOQR
YUHGQRWHQMH]YHþIDNWRUML9]GUåOMLYRVWL]RODFLMVNLKVLVWHPRYNLVHXSRUDEOMDMR]D
VWURMHGRYNOMXþQR09$LQN9SULNRPELQLUDQLKWRSORWQLKLQHOHNWULþQLK
REUHPHQLWYDK,(&75
Rotating electrical machines - Part 18-33: Functional evaluation of insulation systems -
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 (IEC/TR 60034-18-33:1995)
Drehende elektrische Maschinen - Teil 18-33: Funktionelle Bewertung von
Isoliersystemen - Prüfverfahren für Wicklungen mit vorgeformten Elementen -
Funktionelle Bewertung bei mehreren Einflussgrößen - Lebensdauer von Isoliersystemen
für Maschinen bis 50 MVA und 15 kV bei kombinierter thermischer und elektrischer
Beanspruchung (IEC/TR 60034-18-33:1995)
Machines électriques tournantes - Partie 18-33: Evaluation fonctionnelle des systèmes
d'isolation - Procédures d'essai pour enroulements préformés - Evaluation fonctionnelle
à plusieurs facteurs - Endurance sous contrainte thermique et électrique combinée des
systèmes d'isolation utilisés dans les machines jusqu'à et y compris 50 MVA et 15 kV
(CEI/TR 60034-18-33:1995)
Ta slovenski standard je istoveten z: CLC/TR 60034-18-33:2004
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.

TECHNICAL REPORT CLC/TR 60034-18-33
RAPPORT TECHNIQUE
TECHNISCHER BERICHT September 2004

ICS 29.080; 29.160
English version
Rotating electrical machines
Part 18-33: Functional evaluation of insulation systems -
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
(IEC/TR 60034-18-33:1995)
Machines électriques tournantes Drehende elektrische Maschinen
Partie 18-33: Evaluation fonctionnelle Teil 18-33: Funktionelle Bewertung
des systèmes d'isolation - von Isoliersystemen -
Procédures d'essai Prüfverfahren für Wicklungen
pour enroulements préformés - mit vorgeformten Elementen -
Evaluation fonctionnelle Funktionelle Bewertung
à plusieurs facteurs - bei mehreren Einflussgrößen -
Endurance sous contrainte thermique Lebensdauer von Isoliersystemen
et électrique combinée des systèmes für Maschinen bis 50 MVA und 15 kV
d'isolation utilisés dans les machines bei kombinierter thermischer
jusqu'à et y compris 50 MVA et 15 kV und elektrischer Beanspruchung
(CEI/TR 60034-18-33:1995) (IEC 60034-18-33:1995)

This Technical Report was approved by CENELEC on 2004-07-03.

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/TR 60034-18-33:2004 E

Foreword
The text of the Technical Report IEC/TR 60034-18-33:1995, prepared by IEC TC 2, Rotating machinery,
was submitted to the formal vote and was approved by CENELEC as CLC/TR 60034-18-33 on
2004-07-03 without any modification.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the Technical Report IEC/TR 60034-18-33:1995 was approved by CENELEC as a Technical
Report without any modification.
__________
- 3 - CLC/TR 60034-18-33:2004
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 When 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) 1994 Rotating electrical machines EN 60034-1 1995
+ corr. December 1994 Part 1: Rating and performance + corr. April 1995

IEC 60034-15 1995 Part 15: Impulse voltage withstand EN 60034-15 1996
levels 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 60727-1 1982 Evaluation of electrical endurance of - -
electrical insulation systems
Part 1: General considerations and
evaluation procedures based on normal
distributions
IEC 60727-2 1993 Part 2: Evaluation procedures based on - -
extreme-value distributions
1)
EN 60034-1:1995 is replaced by EN 60034-1:2004, which is based on IEC 60034-1:2004.

CEI
RAPPORT
TECHNIQUE - TYPE 2 IEC
34-18-
TECHNICAL
Première édition
REPORT - TYPE 2
First edition
1995-03
Machines électriques tournantes –
Partie 18:
Evaluation fonctionnelle des systèmes d'isolation –
Section 33: Procédures d'essai pour enroulements
préformés – Evaluation fonctionnelle à plusieurs
facteurs – Endurance sous contrainte thermique
et électrique combinée des systèmes d'isolation
utilisés dans les machines jusqu'à et y compris
50 MVA et 15 kV
Rotating electrical machines –
Part 18:
Functional evaluation of insulation systems –
Section 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
© CEI 1995 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 pro- any form or by any means, electronic or mechanical,
cédé, électronique ou mécanique, y compris la photocopie et including photocopying and microfilm, without permission
les microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher.
Bureau Central de la Commission Electrotechnique Internationale 3, rue de Varembé Genève, Suisse
Commission Electrotechnique Internationale CODE PRIX
International Electrotechnical Commission
PRICE CODE
IEC MewtyHapoAHaa 3nerapoTeXHH4ecnata HOMHCc ln
voir catalogue en vigueur
Pour prix,
• •
For price, see current catalogue

– 3 –
34-18-33 ©IEC:1995
CONTENTS
Page
FOREWORD 5
INTRODUCTION 9
Clause
1 Scope
2 Normative references 11
3 General 13
13 3.1 Relationship to section 1
3.2 Designation of test procedures
3.3 Reference insulation system
13 3.4 Verification of diagnostic tests
13 3.5 Characteristics of test procedures
3.6 Means of heating and definition of thermal stress level
17 3.7 Means of electrical ageing
3.8 Definition of ageing sub-cycle duration
3.9 Reference operating conditions
4 Test objects
4.1 Construction of test objects
4.2 Number of test specimens
4.3 Quality assurance tests
4.4 Initial diagnostic tests 23
23 5 Ageing sub-cycle
5.1 Ageing stress levels 23
27 5.2 Duration and number of ageing sub-cycles
5.3 Procedure 1: ageing sub-cycle with ageing stresses applied simultaneously
5.4 Procedure 2: ageing sub-cycle with sequentially applied thermal and
electrical stresses 29
5.5 Procedure 3: ageing sub-cycle when single-point procedure is applicable 29
6 Diagnostic sub-cycle 31
31 6.1 Mechanical tests
6.2 Moisture tests
6.3 Voltage tests
6.4 Other diagnostic tests
7 Analyzing the data, reporting and evaluation
7.1 Analyzing the data 37
7.2 Reporting
7.3 Evaluation
Annex A
34-18-33 ©IEC:1995 - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
ROTATING ELECTRICAL MACHINES –
Part 18: Functional evaluation of insulation systems –
Section 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
FOREWORD
The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
1)
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international cooperation 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, prepared by technical committees on
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
They have the form of recommendations for international use published in the form of standards, technical
3)
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.
The main task of IEC technical committees is to prepare International Standards. In excep-
tional circumstances, a technical committee may propose the publication of a technical
report of one of the following types:
type 1, when the required support cannot be obtained for the publication of an Inter-
•
national Standard, despite repeated efforts;
type 2, when the subject is still under technical development or where for any other
•
reason there is the future but not immediate possibility of an agreement on an Inter-
national Standard;
type 3, when a technical committee has collected data of a different kind from that
•
which is normally published as an International Standard, for example "state of the art".
Technical reports of types 1 and 2 are subject to review within three years of publication to
decide whether they can be transformed into International Standards. Technical reports of
type 3 do not necessarily have to be reviewed until the data they provide are considered
to be no longer valid or useful.

34-18-33 © IEC:1 995 - 7 -
IEC 34-18-33, which is a technical report of type 2, has been prepared by sub-
committee 2J: Classification of insulation systems for rotating machinery, of IEC technical
committee 2: Rotating machinery.
The text of this technical report is based on the following documents:
Committee draft Report on voting
2J(SEC)38
2J(SEC)29
Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.
series of
This document is issued in the type 2 technical repo rt
publications (according to G.4.2.2 of part 1 of the IEC/ISO Directives) as
on" in the field of the
a "prospective standard for provisional applica ti
evaluation of insulating systems for rotating electrical machines because
field
there is an urgent requirement for guidance on how standards in this
should be used to meet an identified need.
This document is not to be regarded as an "International Standard". It is
proposed for provisional application so that information and experience
of its use in practice may be gathered. Comments on the content of this
document should be sent to the IEC Central Office.
rt will be carried out not later than
A review of this type 2 technical repo
three years after its publication, with the options of either extension for a
further three years or conversion to an International Standard or
withdrawal.
Annex A forms an integral part of this technical report.

34-18-33 © IEC:1995 — 9 —
INTRODUCTION
Section 1 of IEC 34-18 presents general guidelines for the evaluation and classification of
insulation systems used in rotating machines.
Section 33 deals exclusively with insulation systems for form-wound windings, and con-
centrates on multifactor functional evaluation limited to thermal and electrical ageing. It is
intended to be a basic technical report, from which the test standard will be developed.

- 11 -
34-18-33 ©IEC:1995
ROTATING ELECT
...