IEC 60831-2-2014 Shunt power capacitors of the self-healing type for a.c systems having a rated voltage up to and including 1000 V - Part 2 Ageing test self-hea.pdf

1、 IEC 60831-2 Edition 3.0 2014-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 000 V Part 2: Ageing test, self-healing test and destruction test Condensateurs shunt de puissance autorgnrateurs

2、 pour rseaux courant alternatif de tension assigne infrieure ou gale 1 000 V Partie 2: Essais de vieillissement, dautorgnration et de destruction IEC 60831-2:2014-02(EN-FR) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified

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20、0831-2 Edition 3.0 2014-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 000 V Part 2: Ageing test, self-healing test and destruction test Condensateurs shunt de puissance autorgnrateurs pour

21、rseaux courant alternatif de tension assigne infrieure ou gale 1 000 V Partie 2: Essais de vieillissement, dautorgnration et de destruction INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE L ICS 29.120.99; 31.060.70 PRICE CODE CODE PRIX ISBN 978-2-8322-1390-2 Regi

22、stered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distrib

23、uteur agr. 2 60831-2 IEC:2014 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references 5 17 Ageing test 6 17.1 Conditioning . 6 17.1.1 General 6 17.1.2 Testing in air with forced circulation 6 17.1.3 Testing in a liquid bath . 6 17.2 Test sequence . 7 17.3 Test requirements 7 18 Self-healing test 8 19

24、 Destruction test . 8 19.1 Test sequence . 8 19.2 Test requirements 10 Annex A (informative) Self-healing breakdown test equipment that may be used . 11 Figure 1 Circuit to perform the destruction test 9 Figure A.1 Example of self-healing detection equipment 11 60831-2 IEC:2014 3 INTERNATIONAL ELECT

25、ROTECHNICAL COMMISSION _ SHUNT POWER CAPACITORS OF THE SELF-HEALING TYPE FOR A.C. SYSTEMS HAVING A RATED VOLTAGE UP TO AND INCLUDING 1 000 V Part 2: Ageing test, self-healing test and destruction test FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for sta

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35、is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC sha

36、ll not be held responsible for identifying any or all such patent rights. International Standard IEC 60831-2 has been prepared by IEC technical committee 33: Power capacitors and their applications. This third edition cancels and replaces the second edition published in 1995. This edition constitute

37、s a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Updating of the normative references; b) Discharge cycles before ageing test carried out at ambient temperature; c) Alternative Self-healing test at d.c. voltage; d) Mod

38、ified acceptance conditions after Self-healing test; e) Modifications to Destruction test. 4 60831-2 IEC:2014 The text of this standard is based on the following documents: FDIS Report on voting 33/544/FDIS 33/551/RVD Full information on the voting for the approval of this standard can be found in t

39、he report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all the parts in the IEC 60831 series, published under the general title Shunt power capacitors of the self-healing type for a.c. systems having a rated vo

40、ltage up to and including 1 000 V, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date

41、, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 60831-2 IEC:2014 5 SHUNT POWER CAPACITORS OF THE SELF-HEALING TYPE FOR A.C. SYSTEMS HAVING A RATED VOLTAGE UP TO AND INCLUDING 1 000 V Part 2: Ageing test, self-healing test and destruction test 1 Scope This

42、 part of IEC 60831 applies to capacitors according to IEC 60831-1 and gives the requirements for the ageing test, self-healing test and destruction test for these capacitors. NOTE The numbering of the clauses and subclauses in this standard corresponds to that of IEC 60831-1. 2 Normative references

43、The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 608

44、31-1:2014, Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 000 V Part 1: General Performance, testing and rating Safety requirements Guide for installation and operation 6 60831-2 IEC:2014 17 Ageing test 17.1 Conditioning 17.1.1 General T

45、he temperature of the case during the first part (17.2a) and the third part (17.2c) of the ageing test shall be the highest mean temperature in 24 h (see Table 1, IEC 60831-1:2014) plus the difference between the measured temperature of the case and the cooling air temperature recorded at the end of

46、 the thermal stability test carried out on an identical unit. The second part (17.2b) of the ageing test should be performed at room temperature. The two test methods indicated below are intended to ensure that the capacitor case temperature is maintained constant during the test. The two methods ar

47、e considered as being equivalent. The units that are not sealed shall be tested in air, with forced circulation. 17.1.2 Testing in air with forced circulation The capacitor unit is mounted in an enclosure in which heated air is circulated with an air velocity such that temperature variations at any

48、point of the enclosure do not exceed 2 C. The sensitive element of the thermostat regulating the temperature in the capacitor enclosure shall be located on the surface of the capacitor container, three-quarters of the way up. The capacitor shall be placed in a vertical position with the terminals up

49、right. When many capacitors are tested together, they shall be placed with sufficient clearance between them in order to have sufficient temperature uniformity. After placing the capacitor in the unheated enclosure, the thermostat shall be set at a tempe- rature equal to that indicated in 17.1.1. Then, without energizing the capacitor, the enclosure shall be brought to thermal stability, which shal