DD-IEC-TS-61934-2006.pdf
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1、DRAFT FOR DEVELOPMENT DD IEC/TS 61934:2006 Electrical insulating materials and systems Electrical measurement of partial discharges (PD) under short rise time and repetitive voltage impulses ICS 17.220.99; 29.035.01; 20.080.30 ? Licensed Copy: London South Bank University, London South Bank Universi
2、ty, Mon Dec 11 01:22:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC/TS 61934:2006 This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 31 May 2006 BSI 2006 ISBN 0 580 48389 4 National foreword This Draft for Development reproduces verba
3、tim IEC/TS 61934:2006. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature. It should be applied on this provisional basis, so that information and experience of its practical application
4、may be obtained. A review of this Draft for Development will be carried out not later than 2 years after its publication. Notification of the start of the review period, with a request for the submission of comments from users of this Draft for Development, will be made in an announcement in the app
5、ropriate issue of Update Standards. According to the replies received, the responsible BSI Committee will judge whether the Draft for Development can be converted into a British Standard or what other action should be taken. Observations which it is felt should receive attention before the official
6、call for comments will be welcomed. These should be sent in writing to the Secretary of BSI Technical Committee GEL/112, Evaluation and qualification of electrical insulating materials and systems, at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and c
7、lause number and proposing, where possible, an appropriate revision of the text. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be fo
8、und in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are res
9、ponsible for its correct application. Summary of pages This document comprises a front cover, an inside front cover, the IEC/TS title page, pages 2 to 22, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendment
10、s issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Mon Dec 11 01:22:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TECHNICAL SPECIFICATION IEC TS 61934 First edition 2006-04 Electrical insulating materials and systems Electrical
11、 measurement of partial discharges (PD) under short rise time and repetitive voltage impulses Reference number IEC/TS 61934:2006(E) Licensed Copy: London South Bank University, London South Bank University, Mon Dec 11 01:22:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 CONTENTS FOREWORD.4 1 Scope.
12、6 2 Normative references .6 3 Terms and definitions .6 4 Measurement of partial discharge pulses during repetitive, short-rise time, voltage impulses and comparison with power frequency .8 4.1 Measurement frequency 8 4.2 Measurement quantities 9 4.3 Test objects.9 4.4 Effect of testing conditions 10
13、 5 PD detection methods 11 5.1 General . 11 5.2 PD pulse coupling and detection devices. 11 5.3 Source-controlled gating techniques 15 6 Display methods . 15 7 Sensitivity of PD measurement . 16 8 Test circuits 17 9 Test procedures . 17 10 Test report 17 Annex A (informative) Indications on the volt
14、age impulse suppression action required by the coupling device 18 Annex B (informative) PD pulses extracted from a supply voltage impulse through filtering techniques . 20 Bibliography 22 Figure 1 Coupling capacitor with multipole filter . 12 Figure 2 Example of voltage impulse and PD pulse frequenc
15、y spectra before and after filtering . 12 Figure 3 HFCT with multipole filter . 13 Figure 4 HFCT between test object and earth with multipole filter 13 Figure 5 Circuit using an electromagnetic coupler (for example an antenna) to suppress impulses from the test supply. 13 Figure 6 Example of wavefor
16、ms of repetitive bipolar impulse voltage and charge accumulation for on twisted-pair sample . 14 Figure 7 Charge measurements . 14 Figure 8 Example of PD detection using electronic source-controlled gating (other PD coupling devices can be used) 15 DD IEC/TS 61934:2006 Licensed Copy: London South Ba
17、nk University, London South Bank University, Mon Dec 11 01:22:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 Figure A.1 Schematic example of overlap between voltage impulse and PD pulse spectra (dotted area) 18 Figure A.2 Schematic example of voltage impulse and PD pulse spectra after filtering. 18
18、 Figure A.3 Example of impulse voltage damping as a function of impulse voltage magnitude and rise time 19 Figure B.1 Power supply waveform and recorded PD pulses measured using an antenna during supply voltage commutation 20 Figure B.2 Partial discharge pulses detected by an antenna from the record
19、 of Figure B.1, using a filtering technique (400 MHz high-pass filter) 21 Figure B.3 Characteristic of the filter used to pass from Figure B.1 to Figure B.2 . 21 DD IEC/TS 61934:2006 Licensed Copy: London South Bank University, London South Bank University, Mon Dec 11 01:22:00 GMT+00:00 2006, Uncont
20、rolled Copy, (c) BSI 4 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRICAL INSULATING MATERIALS AND SYSTEMS ELECTRICAL MEASUREMENT OF PARTIAL DISCHARGES (PD) UNDER SHORT RISE TIME AND REPETITIVE VOLTAGE IMPULSES FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organi
21、zation for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, I
22、EC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt wi
23、th may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by
24、agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3)
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