kSIST prEN IEC 60270:2025
(Main)High-voltage test techniques - Charge-based measurement of partial discharges
High-voltage test techniques - Charge-based measurement of partial discharges
IEC 60270:2025 is applicable to the charge-based measurement of partial discharges which occur in electrical apparatus, components or systems when tested with alternating voltages (AC) up to 500 Hz or with direct voltage (DC).
This document:
– defines the terms used;
– defines the quantities to be measured;
– describes the measurement frequencies as well as the test and measuring circuits which may be used;
– defines analogue and digital measuring methods required for common applications;
– specifies methods for calibration and requirements of instruments used for calibration;
– gives guidance on test procedures;
– gives some assistance concerning the discrimination of partial discharges from external interference.
The provisions of this document are used in the drafting of specifications relating to partial discharge measurements for specific power apparatus. It deals with electrical measurements of impulsive (short-duration) partial discharges, but reference is also made to non-electrical methods primarily used for partial discharge location (see Annex F). Diagnosis of the behaviour of specific power apparatus can be aided by digital processing of partial discharge data (see Annex E) and also by non-electrical methods that are primarily used for partial discharge location (see Annex F).
This document is primarily concerned with electrical measurement of partial discharge in terms of apparent charge for specific power apparatus made during tests with alternating voltage, but specific problems which arise when tests are made with direct voltage are considered in Clause 11.
The terminology, definitions, basic test circuits and procedures often also apply to tests at other frequencies, but special test procedures and measuring system characteristics which are not considered in this document may be required. For measurements at higher frequency ranges, see IEC TS 62478.
Annex A provides normative requirements for performance tests on calibrators.
This fourth edition cancels and replaces the third edition published in 2000, and Amendment 1:2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Title modified.
b) Use with alternating voltages up to 500 Hz or with direct voltage.
c) Clear focus on charge-based partial discharge measurements.
d) Streamlined performance checks for partial discharge measurement system components.
e) Improved normative Annex A for performance tests on calibrators.
f) Revised and new informative Annexes.
In a future revision, this document will seek horizontal publication status in accordance with IEC Guide 108.
Techniques des essais à haute tension - Mesures des décharges partielles
L'IEC 60270:2025 s'applique aux mesurages fondés sur les charges pour les décharges partielles (DP) qui se produisent dans les appareillages, composants ou systèmes électriques soumis à des essais sous des tensions alternatives inférieures ou égales à 500 Hz ou sous une tension continue.
Le présent document:
– définit les termes utilisés;
– définit les grandeurs à mesurer;
– décrit les fréquences de mesure, ainsi que les circuits d'essai et de mesure qui peuvent être utilisés;
– définit les méthodes de mesure analogique et numérique exigées pour les applications courantes;
– spécifie les méthodes d'étalonnage et les exigences relatives aux appareils de mesure utilisés pour l'étalonnage;
– fournit des recommandations pour les procédures d'essai;
– donne des conseils pour distinguer les décharges partielles des interférences externes.
Les dispositions du présent document sont utilisées pour élaborer les spécifications relatives aux mesurages de décharges partielles dans le cadre d'appareillages de puissance spécifiques. Le présent document traite des mesurages électriques des décharges partielles impulsionnelles (de courte durée), mais il est également fait référence à des méthodes non électriques, principalement utilisées pour la localisation des décharges partielles (voir l'Annexe F). Les diagnostics concernant le comportement d'appareillages de puissance spécifiques peuvent être facilités par le traitement numérique des données de décharges partielles (voir l'Annexe E), mais également par des méthodes non électriques, utilisées principalement pour la localisation des décharges partielles (voir l'Annexe F).
Le présent document traite essentiellement des mesurages électriques de décharges partielles fondés sur la charge apparente d'appareillages de puissance spécifiques, effectués dans le cadre d'essais sous une tension alternative, mais l'Article 11 traite néanmoins des problèmes particuliers susceptibles de se produire lors d'essais sous une tension continue.
La terminologie, les définitions, les circuits d'essai de référence et les procédures sont souvent utilisés pour les essais à d'autres fréquences de mesure des DP, mais des procédures d'essai et des caractéristiques de systèmes de mesure particulières, qui ne sont pas traitées dans le présent document, peuvent être exigées. Pour les mesurages effectués dans des plages de fréquences supérieures, voir l'IEC TS 62478.
L'Annexe A fournit les exigences normatives relatives aux essais de détermination des caractéristiques des dispositifs d'étalonnage.
Cette quatrième édition annule et remplace la troisième édition parue en 2000 et l'Amendement 1:2015. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) modification du titre;
b) utilisation de tensions alternatives inférieures ou égales à 500 Hz ou d'une tension continue;
c) valorisation des mesurages de décharges partielles fondés sur les charges;
d) simplification des contrôles des caractéristiques pour les composants des systèmes de mesure de décharges partielles;
e) amélioration de l'Annexe A normative pour les essais de détermination des caractéristiques des dispositifs d'étalonnage;
f) révision des annexes informatives existantes et ajout d'annexes informatives.
Dans une future révision, ce document cherchera
Visokonapetostne preskusne tehnike – Meritve delnih razelektritev na podlagi električnih nabojev
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 60270:2023
01-julij-2023
Visokonapetostne preskusne tehnike - Meritve delnih razelektritev
High-voltage test techniques - Charge-based measurement of partial discharges
Techniques des essais à haute tension - Mesures des décharges partielles
Ta slovenski standard je istoveten z: prEN IEC 60270:2023
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
oSIST prEN IEC 60270:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN IEC 60270:2023
oSIST prEN IEC 60270:2023
42/418/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60270 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-05-12 2023-08-04
SUPERSEDES DOCUMENTS:
42/400/CD, 42/417/CC
IEC TC 42 : HIGH-VOLTAGE AND HIGH-CURRENT TEST TECHNIQUES
SECRETARIAT: SECRETARY:
Canada Mr Howard G. Sedding
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 2,TC 14,TC 20,TC 36,TC 112,TC 122
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
High-voltage test techniques - Charge-based measurement of partial discharges
PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for
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oSIST prEN IEC 60270:2023
IEC CDV 60270/Ed4 © IEC 2023 – 2 – 42/418/CDV
1 CONTENTS
3 FOREWORD . 5
4 1 Scope . 7
5 2 Normative references . 8
6 3 Terms and definitions . 8
7 4 Test circuits and measuring systems . 13
8 4.1 General requirements . 13
9 4.2 Test circuits for alternating voltages . 13
10 4.3 Measuring systems for apparent charge . 14
11 4.3.1 General . 14
12 4.3.2 Coupling device or ‘quadrupole’ . 14
13 4.3.3 Pulse train response of instruments for the measurement of apparent
14 charge . 14
15 4.3.4 Wide-band PD measuring systems . 15
16 4.3.5 Wide-band PD instruments with active integrator . 16
17 4.3.6 Narrow-band PD instruments . 16
18 4.4 Requirements for measurements with digital PD-instruments . 16
19 4.4.1 Requirements for measurement of apparent charge q . 17
20 4.4.2 Requirements for measurement of test voltage magnitude and phase . 17
21 4.5 Measuring systems for derived quantities . 17
22 4.5.1 Coupling device . 17
23 4.5.2 Instruments for the measurement of pulse repetition rate n . 17
24 4.5.3 Instruments for the measurement of average apparent discharge current
25 I 17
26 4.5.4 Instruments for the measurement of apparent discharge power P . 18
27 4.6 Instruments for the measurement of the radio disturbance voltage . 18
28 4.7 Instrumentation for PD detection >1 MHz . 18
29 5 Calibration of a measuring system in the complete test circuit . 18
30 5.1 General . 18
31 5.2 Calibration procedure. 19
32 6 Calibrators . 20
33 6.1 General . 20
34 6.2 Calibrators for the calibration of a measuring system in the complete test
35 circuit . 21
36 6.3 Calibrators for performance tests on measuring systems . 21
37 7 Maintaining the characteristics of calibrators and measuring systems . 22
38 7.1 Schedule of tests . 22
39 7.2 Maintaining the characteristics of calibrators . 22
40 7.2.1 Type tests on calibrators . 22
41 7.2.2 Routine tests on calibrators . 22
42 7.2.3 Performance tests on calibrators . 22
43 7.2.4 Performance checks on calibrators . 23
44 7.2.5 Record of performance . 24
45 7.3 Maintaining the characteristics of measuring systems . 24
46 7.3.1 Type tests on PD measuring systems . 24
47 7.3.2 Routine tests on measuring systems . 25
oSIST prEN IEC 60270:2023
IEC CDV 60270/Ed4 © IEC 2023 – 3 – 42/418/CDV
48 7.3.3 Performance tests on measuring systems . 25
49 7.3.4 Performance checks for measuring systems . 25
50 7.3.5 Checks for additional capabilities of digital measuring systems . 25
51 7.3.6 Record of performance . 26
52 8 Partial discharge measurements during tests with alternating voltage . 26
53 8.1 General . 26
54 8.2 Conditioning of the test object . 27
55 8.3 Choice of test procedure . 27
56 8.3.1 Determination of the partial discharge inception and extinction voltages . 27
57 8.3.2 Determination of the partial discharge magnitude at a specified test
58 voltage . 27
59 9 Measuring uncertainty and sensitivity . 28
60 10 External Disturbances/Interference . 28
61 11 Partial discharge measurements during tests with direct voltage . 29
62 11.1 General . 29
63 11.2 PD quantities . 30
64 11.3 Voltages related to partial discharges . 30
65 11.3.1 Partial discharge inception and extinction voltages . 30
66 11.3.2 Partial discharge test voltage . 30
67 11.4 Test circuits and measuring systems. 31
68 11.5 Test procedures with regard to external disturbances . 31
69 11.5.1 Choice of test procedures . 31
70 11.5.2 Disturbances . 31
71 Annex A (normative) Performance tests on calibrators . 37
72 A.1 General . 37
73 A.2 Comparison method . 38
74 A.3 Numerical integration method . 39
75 A.4 Passive integration method . 40
76 A.5Active integration method . 42
77 Annex B (informative) Test circuits . 43
78 Annex C (informative) Measurements on test objects with distributed or inductive
79 characteristics such as cables, gas-insulated switchgear, power capacitors, and
80 on test objects with windings: alternative methods . 45
81 C.1 General . 45
82 C.2 Attenuation and distortion phenomena . 47
83 C.3 Resonance phenomena, reflections . 47
84 C.4 Location of discharges . 47
85 Annex D (informative) The use of radio disturbance (interference) meters for the
86 detection of partial discharges . 48
87 Annex E (informative) PD measuring instruments . 50
88 E.1 General concept . 50
89 E.2 Correct acquisition of (charge) amplitude and polarity of PD signals . 50
90 E.3 Recommendations for recording test voltage, phase angle φ and time t of
I i
91 occurrence of a PD pulse . 52
92 E.4 Phase-resolved partial discharge (PRPD) pattern display algorithm . 52
93 Annex F (informative) Alternative methods of PD detection . 57
94 F.1 General . 57
95 F.2 Electromagnetic detection . 57
96 F.3 Acoustic detection . 57
oSIST prEN IEC 60270:2023
IEC CDV 60270/Ed4 © IEC 2023 – 4 – 42/418/CDV
97 F.4 Chemical detection . 57
98 F.5 Optical detection . 57
99 Annex G . 59
100 G.1 Sources of disturbances. 59
101 G.2 Detecting disturbances . 59
102 G.3 Disturbance levels . 60
103 G.4 Suggestions for reducing disturbances . 60
104 G.4.1 Basic grounding, bonding, and filte
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