SIST EN IEC 60034-27-2:2025

Rotating electrical machines - Part 27-2: On-line partial discharge measurements on the stator winding insulation (IEC 60034-27-2:2023)

IEC 60034-27-2:2023 deals with on-line PD measurements and provides a common basis with standardized procedures if possible for:
- measuring techniques and instruments;
- the arrangement of the installation;
- normalization and sensitivity assessment;
- measuring procedures;
- noise reduction;
- the documentation of results;
- the interpretation of results;
with respect to partial discharge on-line measurements on the stator winding insulation of non‑converter driven rotating electrical machines with rated voltage of 3 kV and up. This document covers PD measuring systems and methods detecting electrical PD signals. The same measuring devices and procedures can also be used to detect electrical sparking and arcing phenomena.

Drehende elektrische Maschinen - Teil 27-2: OnlineTeilentladungsmessungen an der Ständerwicklungsisolierung drehender elektrischer Maschinen (IEC 60034-27-2:2023)

Machines électriques tournantes - Partie 27-2: Mesurages en fonctionnement des décharges partielles effectués sur le système d'isolation(IEC 60034-27-2:2023)

IEC 60034-27-2:2023 traite des mesurages en fonctionnement des DP et fournit une base commune avec, lorsque c’est possible, des procédures normalisées pour:
- les techniques et les appareils de mesure;
- la mise en place de l’installation;
- l'évaluation de la normalisation et de la sensibilité;
- les procédures de mesure;
- la réduction du bruit;
- la documentation des résultats;
- l'interprétation des résultats;
pour les besoins des mesurages en fonctionnement des décharges partielles sur le système d'isolation des enroulements statoriques des machines électriques tournantes non entraînées par convertisseur, avec une tension assignée supérieure ou égale à 3 kV. Le présent document couvre les systèmes de mesure des DP et les méthodes de détection des signaux de DP électriques. Les mêmes appareils et procédures de mesure peuvent également être utilisés pour détecter les phénomènes d’étincelles et d’arc électriques.

Električni rotacijski stroji - 27-2 del: Sprotno merjenje delnih razelektritev na izolaciji statorskega navitja (IEC 60034-27-2:2023)

General Information

• Status: Published
• Public Enquiry End Date: 30-Jul-2022
• Publication Date: 09-Feb-2025
• ICS: 29.160.01 - Rotating machinery in general
• Technical Committee: ERS - Rotating machinery
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Oct-2024
• Due Date: 14-Dec-2024
• Completion Date: 10-Feb-2025
• Ref Project: EN IEC 60034-27-2:2024 - Rotating electrical machines - Part 27-2: On-line partial discharge measurements on the stator winding insulation

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2025
Električni rotacijski stroji - 27-2 del: Sprotno merjenje delnih razelektritev na
izolaciji statorskega navitja (IEC 60034-27-2:2023)
Rotating electrical machines - Part 27-2: On-line partial discharge measurements on the
stator winding insulation (IEC 60034-27-2:2023)
Drehende elektrische Maschinen - Teil 27-2: OnlineTeilentladungsmessungen an der
Ständerwicklungsisolierung drehender elektrischer Maschinen (IEC 60034-27-2:2023)
Machines électriques tournantes - Partie 27-2: Mesurages en fonctionnement des
décharges partielles effectués sur le système d'isolation(IEC 60034-27-2:2023)
Ta slovenski standard je istoveten z: EN IEC 60034-27-2:2024
ICS:
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 IEC 60034-27-2

NORME EUROPÉENNE
EUROPÄISCHE NORM January 2024
ICS 29.160.01
English Version
Rotating electrical machines - Part 27-2: On-line partial
discharge measurements on the stator winding insulation
(IEC 60034-27-2:2023)
Machines électriques tournantes - Partie 27-2: Mesurages Drehende elektrische Maschinen - Teil 27-2: Online
en fonctionnement des décharges partielles effectués sur le Teilentladungsmessungen an der
système d'isolation Ständerwicklungsisolierung drehender elektrischer
(IEC 60034-27-2:2023) Maschinen
(IEC 60034-27-2:2023)
This European Standard was approved by CENELEC on 2024-01-11. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60034-27-2:2024 E

European foreword
The text of document 2/2153/FDIS, future edition 1 of IEC 60034-27-2, prepared by IEC/TC 2
"Rotating machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
as EN IEC 60034-27-2:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-10-11
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-01-11
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60034-27-2:2023 was approved by CENELEC as a
European Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60034-27-1 2017 Rotating electrical machines - Part 27-1: EN IEC 60034-27-1 2018
Off-line partial discharge measurements on
the winding insulation
IEC 60034-27-3 - Rotating electrical machines - Part 27-3: EN 60034-27-3 -
Dielectric dissipation factor measurement
on stator winding insulation of rotating
electrical machines
IEC 60060-1 - High-voltage test techniques - Part 1: EN 60060-1 -
General definitions and test requirements
IEC 60068-2-6 - Environmental testing - Part 2-6: Tests - EN 60068-2-6 -
Test Fc: Vibration (sinusoidal)
IEC 60068-2-27 - Environmental testing - Part 2-27: Tests - EN 60068-2-27 -
Test Ea and guidance: Shock
IEC 60112 - Method for the determination of the proof EN IEC 60112 -
and the comparative tracking indices of
solid insulating materials
IEC 60270 2000 High-voltage test techniques - Partial EN 60270 2001
discharge measurements
IEC 62271-1 - High-voltage switchgear and controlgear - EN 62271-1 -
Part 1: Common specifications for
alternating current switchgear and
controlgear
IEC TS 62478 - High voltage test techniques - - -
Measurement of partial discharges by
electromagnetic and acoustic methods
ISO 8528-9 - Reciprocating internal combustion engine - -
driven alternating current generating sets -
Part 9: Measurement and evaluation of
mechanical vibration
IEC 60034-27-2 ®
Edition 1.0 2023-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Rotating electrical machines –

Part 27-2: On-line partial discharge measurements on the stator winding

insulation
Machines électriques tournantes –

Partie 27-2: Mesurages en fonctionnement des décharges partielles effectués

sur le système d’isolation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.160.01  ISBN 978-2-8322-7873-4

– 2 – IEC 60034-27-2:2023 © IEC 2023
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 Cause and effects of on-line PD . 13
5 Noise and disturbances . 14
5.1 General . 14
5.2 Noise and disturbance sources . 14
6 Measuring techniques and instruments . 15
6.1 General . 15
6.2 Pulse propagation in windings . 16
6.3 Signal transfer characteristics . 16
6.4 PD sensors . 19
6.4.1 General . 19
6.4.2 Design of PD sensors . 19
6.4.3 Reliability of PD sensors . 20
6.5 PD measuring device . 20
6.6 PD measuring parameters . 21
6.6.1 General . 21
6.6.2 PD magnitude . 21
6.6.3 Additional PD parameters . 21
7 Installation of measuring systems . 21
7.1 General . 21
7.2 Installation of PD sensors . 21
7.3 Outside access point and cabling . 22
7.4 Installation of the PD measuring device . 23
7.5 Installation of operational data acquisition systems . 23
8 Normalization of measurements . 24
8.1 General . 24
8.2 Normalization for low frequency systems . 24
8.2.1 General . 24
8.2.2 Normalization procedure . 24
8.3 Normalization / sensitivity check for high and very high frequency systems . 25
8.3.1 Specification for the electronic pulse generation . 25
8.3.2 Configuration of the machine . 27
8.3.3 Sensitivity check . 27
9 Measuring procedures . 27
9.1 General . 27
9.2 Machine operating parameters . 28
9.3 Baseline measurement . 28
9.3.1 General . 28
9.3.2 Comprehensive test procedure . 28
9.4 Periodic measurements . 29
9.5 Continuous measurements . 30
10 Visualization of measurements . 30

IEC 60034-27-2:2023 © IEC 2023 – 3 –
10.1 General . 30
10.2 Visualization of trending parameters . 31
10.3 Visualization of PD patterns . 31
11 Interpretation of on-line measurements . 34
11.1 General . 34
11.2 Evaluation of basic trend parameters . 34
11.3 Evaluation of PD patterns . 35
11.3.1 General . 35
11.3.2 PD pattern interpretation. 36
11.4 Effect of machine operating factors . 36
11.4.1 General . 36
11.4.2 Machine operating factors .
...