FprEN IEC 60270:2024
(Main)High-voltage test techniques - Charge-based measurement of partial discharges
High-voltage test techniques - Charge-based measurement of partial discharges
Techniques d'essai à haute tension - Mesurages des décharges partielles fondés sur les charges
Visokonapetostne preskusne tehnike – Meritve delnih razelektritev na podlagi električnih nabojev
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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
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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
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This document is still under study and subject to change. It should not be used for reference purposes.
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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
any other purpose without permission in writing from IEC.
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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