1、BRITISH STANDARD High-voltage test techniques - Partial discharge measurements The European Standard EN 60270:2001 has the status of a British Standard ICs 29.020 BS EN 60270:2001 IEC 60270:2000 U- NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Copyright European Committee fo
2、r Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 60270:ZOOl Standards Committee and Amd. No. comes into effect on 15 July 2001 National foreword Date Comments This British Standard is
3、 the official English language version of EN 60270:2001. It is identical with IEC 60270:2000. It superseded BS 4828:1985 which will be withdrawn on 2003-12-01. The UK participation in its preparation was entrusted to Technical Committee PEU42, Testing techniques for high voltages and currents, which
4、 has the responsibility to: - - aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK.
5、 - A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from o
6、ne numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International S
7、tandards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British St
8、andard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 49, an annex ZA page, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when
9、 the document was last issued. This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published Amendments issued since publication under the authoritv of the O BSI 08-2001 ISBN O 580 38138 2 Copyright European Committee for Electrotechnical Sta
10、ndardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD EN 60270 NORME EUROPENNE EUROPISCHE NORM March 2001 ICs 17.220.20:19.080 English version High-voltage test techniques - Partial discharge measur
11、ements (IEC 60270:2000) Technique des essais haute tension - Mesure des dcharges partielles Teilentladungsmessungen Hochspannungs-Prftechni k - (CE1 60270:2000) (I EC 60270:2000) This European Standard was approved by CENELEC on 2000-12-01. CENELEC members are bound to comply with the CEWCENELEC Int
12、ernal 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 btained on application to the Central Secretariat or to any CENELEC m
13、ember. 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 Central Secretariat has the same status as the official versions. CENE
14、LEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical
15、Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: tue de Stassart 35, B - 1050 Btussels O 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 602
16、70:2001 E Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 2 EN 60270:2001 Foreword The text of document 42/162/FDIS, future edition 3 of IEC 60270, prep
17、ared by IEC TC 42, High- voltage testing techniques, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60270 on 2000-12-01. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national sta
18、ndard or by endorsement - latest date by which the national standards conflicting with the EN have to be withdrawn (dop) 2001 -1 0-0 (dw) 2003-1 2-0 Annexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are given for information only. In this standard,
19、 annexes A and ZA are normative and annexes B to G are informative. Annex ZA has been added by CENELEC. The words in bold in the text of the standard are defined in clause 3. Endorsement notice The text of the International Standard IEC 60270:2000 was approved by CENELEC as a European Standard witho
20、ut any modification. 0 O BSI 08-2001 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 3 EN 60270:2001 CONTENTS Page Scope 6 Normative references . 7 Defi
21、nitions 7 Test circuits and measuring systems . 12 4.1 General requirements 12 4.2 4.3 Test circuits for alternating voltages . 12 Measuring systems for apparent charge . 13 4.3.1 General 13 4.3.2 Coupling device . 13 4.3.3 Pulse train response of instruments for the measurement of apparent charge 1
22、3 4.3.4 Wide-band PD instruments . 14 4.3.5 Wide-band PD instruments with active integrator 15 4.3.6 Narrow-band PD instruments 15 Requirements for measurements with digital PD-instruments 15 4.4.1 Requirements for measurement of apparent charge 9 16 4.4.2 Requirements for measurement of test voltag
23、e magnitude and phase . 16 Measuring systems for derived quantities . 16 4.5.1 Coupling device . 16 4.5.2 Instruments for the measurement of pulse repetition rate n . 16 4.5.3 Instruments for the measurement of average discharge current / 17 4.5.4 Instruments for the measurement of discharge power P
24、 17 4.5.5 Instruments for the measurement of quadratic rate D 17 4.5.6 Instruments for the measurement of the radio disturbance voltage 17 4.6 Ultra-wide-band instruments for PD detection . 18 Calibration of a measuring system in the complete test circuit 18 5.1 General . 18 5.2 Calibration procedur
25、e . 18 Calibrators 19 6.1 General . 19 6.2 Calibrators for the calibration of a measuring system in the complete test circuit . 19 6.3 Calibrators for performance tests on measuring systems 20 Maintaining the characteristics of calibrators and measuring systems 20 7.1 Schedule of tests . 20 7.2 Main
26、taining the characteristics of calibrators 21 7.2.1 Type tests on calibrators 21 7.2.2 Routine tests on calibrators 21 7.2.3 Performance tests on calibrators 21 7.2.4 Performance checks on calibrators . 21 7.2.5 Record of performance . 22 Maintaining the characteristics of measuring systems . 22 7.3
27、.1 Type tests on PD measuring systems . 22 4.4 4.5 7.3 05 6 7 O BSI 08-2001 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 4 EN 60270:2001 7.3.2 Routin
28、e tests on measuring systems 23 7.3.3 7.3.4 7.3.5 7.3.6 Performance tests on measuring systems . 23 Performance checks for measuring systems . 23 Checks for additional capabilities of digital measuring systems . 24 Record of performance . 25 8 Tests 25 8.1 General requirements 25 Conditioning of the
29、 test object 25 Choice of test procedure 26 Determination of the partial discharge inception and extinction voltages 26 Determination of the partial discharge magnitude at a specified test voltage 26 Measuring uncertainty and sensitivity 27 1 O Disturbances . 27 1 1 Partial discharge measurements du
30、ring tests with direct voltage 28 1 1.1 General . 28 11.2 Quantities related to partial discharges . 28 11.3 Voltages related to partial discharges . 28 11.3.1 Partial discharge inception and extinction voltages . 28 11.3.2 Partial discharge test voltage . 29 11.4 Test circuits and measuring systems
31、 29 I I . 5 Tests . 29 11.5.1 Choice of test procedures . 29 11 S.2 Disturbances 29 Annex A (normative) Performance test on a calibrator . 35 General . 35 A.2 Reference method . 35 A.3 Alternative method . 35 Annex B (informative) Test circuits . 38 Annex C (informative) Measurements on cables, gas
32、insulated switchgear, power capacitors and on test objects with windings 40 General . 40 C.2 Attenuation and distortion phenomena 40 C.3 Resonance phenomena, reflections 40 C.4 Location of discharges . 40 Annex D (informative) The use of radio disturbance (interference) meters for the detection of p
33、artial discharges 41 Annex E (informative) Guidelines to digital acquisition of partial discharge quantities 43 General . 43 Instructions for processing analogue apparent charge signals 43 Recommendations for recording test voltage, phase angle +i and time ti of occurrence of a PD pulse 44 Annex F (
34、informative) Non-electrical methods of PD detection 46 General . 46 F.2 Acoustic detection 46 F.4 Chemical detection 46 F.5 Reference documents 46 8.2 8.3 8.3.1 8.3.2 9 F.3 Visual or optical detection 46 O O BSI 08-2001 Copyright European Committee for Electrotechnical Standardization Provided by IH
35、S under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 5 EN 60270:2001 Annex G (informative) Disturbances 47 0 Sources of disturbances 47 Detecting disturbances 47 Reduction of disturbances . 48 G.l . 1 Screening and filtering . 48 G.1.2 B
36、alanced circuits 48 G.1.3 Electronic processing and recovering of signals 48 Disturbance levels . 49 Annex ZA (normative) Normative references to international publications with their corresponding European publications . 50 Figure 1 . Basic partial discharge test circuits . 31 Figure 2 . Test circu
37、it for measurement at a tapping of a bushing 32 Figure 3 . Test circuit for measuring self-excited test objects 32 Figure 4 . Connections for the calibration of the complete test arrangement 34 Figure 5 . Correct relationship between amplitude and frequency to minimize integration errors for a wide-
38、band system 34 Figure A.l . Calibration of pulse calibrators . 37 Figure D.l . Variation of CISPR radio disturbance meter reading f(N) with repetition frequency N, for constant pulses 42 Figure E.l . Output voltage signals U, of two different PD measuring systems for apparent charge (double pulse) 4
39、5 Table 1 . Pulse train response of PD instruments 14 Table 2 . Tests required for calibrators 22 Table 3 . Tests required for measuring systems 24 O BSI 08-2001 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction
40、or networking permitted without license from IHS-,-,-Page 6 EN 60270:2001 HIGH-VOLTAGE TEST TECHNIQUES - PARTIAL DISCHARGE MEASUREMENTS 1 Scope This International Standard is applicable to the measurement of partial discharges which occur in electrical apparatus, components or systems when tested wi
41、th alternating voltages up to 400 Hz or with direct voltage. This standard - defines the terms used; - defines the quantities to be measured; - describes test and measuring circuits which may be used; - defines analogue and digital measuring methods required for common applications; - specifies meth
42、ods 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 standard should be used in the drafting of specifications rela
43、ting to partia! dischirge measiirements 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 o
44、f 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 standard is primarily concerned with electrical measurements of partial discharges made
45、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 with other frequencies, but special test procedures and measuring s
46、ystem characteristics, which are not considered in this standard, may be required. Annex A provides normative requirements for performance tests on calibrators. a O BSI 08-2001 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleN
47、o reproduction or networking permitted without license from IHS-,-,-Page 7 EN 60270:2001 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendment
48、s to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition
49、 of the normative document referred to applies. Members of IEC and IS0 maintain registers of currently valid International Standards. IEC 60060-1, High-voltage test techniques - Part I: General definitions and test requirements. IEC 60060-2, High-voltage test techniques - Part 2: Measuring systems CISPR 16-1 : 1993, Specification for radio disturbance and immunity measuring apparatus and methods - Part 1: R
