IEC 60034-18-32:2010

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

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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
– 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
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

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
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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
...