1、 IEC 60871-4 Edition 2.0 2014-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Shunt capacitors for AC power systems having a rated voltage above 1 000 V Part 4: Internal fuses Condensateurs shunt pour rseaux courant alternatif de tension assigne suprieure 1 000 V Partie 4: Fusibles internes IEC 60871
2、4:2014-03(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, wi
3、thout permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Co
4、mmittee for further information. Droits de reproduction rservs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de
5、lIEC ou du Comit national de lIEC du pays du demandeur. Si vous avez des questions sur le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre pays de rsidence. IEC Central Office
6、Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic an
7、d related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone appl
8、ication for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC pu
9、blications by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications
10、released. Available online and also once a month by email. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 14 additional languages. Also known
11、 as the International Electrotechnical Vocabulary (IEV) online. IEC Glossary - std.iec.ch/glossary More than 55 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from
12、earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. A propos de lIEC La Commission Electrotechnique Internati
13、onale (IEC) est la premire organisation mondiale qui labore et publie des Normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que v
14、ous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques et autres document
15、s de lIEC. Disponible pour PC, Mac OS, tablettes Android et iPad. Recherche de publications IEC - www.iec.ch/searchpub La recherche avance permet de trouver des publications IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations sur les projets
16、 et les publications remplaces ou retires. IEC Just Published - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications IEC. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electropedia.org Le p
17、remier dictionnaire en ligne de termes lectroniques et lectriques. Il contient plus de 30 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans 14 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Glossaire IEC - std.
18、iec.ch/glossary Plus de 55 000 entres terminologiques lectrotechniques, en anglais et en franais, extraites des articles Termes et Dfinitions des publications IEC parues depuis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Service Clients - web
19、store.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60871-4 Edition 2.0 2014-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Shunt capacitors for AC power systems having a rated voltage above 1 000 V Part 4: I
20、nternal fuses Condensateurs shunt pour rseaux courant alternatif de tension assigne suprieure 1 000 V Partie 4: Fusibles internes INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE L ICS 29.240.99; 31.060.70 PRICE CODE CODE PRIX ISBN 978-2-8322-1495-4 Registered tra
21、demark 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 distributeur agr.
22、 2 IEC 60871-4:2014 IEC 2014 CONTENTS FOREWORD . 3 1 Scope and object . 5 2 Normative references 5 3 Terms and definitions 5 4 Performance requirements. 5 4.1 General . 5 4.2 Disconnecting requirements 6 4.3 Withstand requirements 6 5 Tests . 6 5.1 Routine tests. 6 5.1.1 General . 6 5.1.2 Discharge
23、test . 7 5.2 Type tests . 7 5.3 Disconnecting test on fuses 7 5.3.1 Test procedures . 7 5.3.2 Capacitance measurement 8 5.3.3 Inspection of the unit . 8 5.3.4 Voltage test after opening the container . 8 Annex A (normative) Test procedures for the disconnecting test on internal fuses . 9 A.1 General
24、 . 9 A.2 Test procedures 9 Annex B (informative) Guide for coordination of fuse protection . 11 B.1 General . 11 B.2 Protection sequence . 11 IEC 60871-4:2014 IEC 2014 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SHUNT CAPACITORS FOR AC POWER SYSTEMS HAVING A RATED VOLTAGE ABOVE 1 000 V Part 4: Int
25、ernal fuses FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardiz
26、ation in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is
27、 entrusted to technical committees; any IEC National Committee interested in the subject dealt with 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
28、International Organization for Standardization (ISO) in accordance with conditions determined by 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 s
29、ince each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical conte
30、nt of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possibl
31、e in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
32、 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors,
33、 employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out
34、of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention 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
35、 the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60871-4 has been prepared by IEC technical committee 33: Power capacitors and their appl
36、ications. This second edition cancels and replaces the first edition published in 1996. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: The disconnecting requirements have been modified. 4 IEC 6087
37、1-4:2014 IEC 2014 The text of this standard is based on the following documents: FDIS Report on voting 33/548/FDIS 33/561/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accor
38、dance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 60871 series, published under the general title Shunt capacitors for AC power systems having a rated voltage above 1 000 V, can be found on the IEC website. The committee has decided that the contents of this publication will
39、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, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC 60871-4:2014 IEC 2014 5 SHUNT CAPACITORS
40、 FOR AC POWER SYSTEMS HAVING A RATED VOLTAGE ABOVE 1 000 V Part 4: Internal fuses 1 Scope and object This part of IEC 60871 applies to internal fuses which are designed to isolate faulty capacitor elements, in order to allow operation of the remaining parts of that capacitor unit and the bank in whi
41、ch the capacitor unit is connected. Such fuses are not a substitute for a switching device such as a circuit-breaker, or for external protection of the capacitor bank or any part thereof. The object of this part of IEC 60871 is to formulate requirements regarding performance and testing and to provi
42、de a guide for coordination of fuse protection. 2 Normative references 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
43、 of the referenced document (including any amendments) applies. IEC 60871-1:2005, Shunt capacitors for a.c. power systems having a rated voltage above 1000 V Part 1: General 3 Terms and definitions For the purpose of this part of IEC 60871, the terms and definitions in IEC 60871-1, as well as the fo
44、llowing, apply. 3.1 rated voltage of a capacitor element U Ner.m.s. value of the alternating voltage for which the capacitor element has been designed 4 Performance requirements 4.1 General The fuse is connected in series to the element(s) which the fuse is intended to isolate if the element(s) beco
45、mes faulty. The range of currents and voltages for the fuse is therefore dependent on the capacitor design, and in some cases also on the bank in which the fuse is connected. The requirements are valid for a bank or a capacitor switched by restrike-free circuit-breakers. If the circuit-breakers are
46、not restrike-free, other requirements shall be agreed between manufacturer and purchaser. The operation of an internal fuse is in general determined by one or both of the two following factors: 6 IEC 60871-4:2014 IEC 2014 the discharge energy from elements or units connected in parallel with the fau
47、lty element or unit; the power-frequency fault current. The additional current and voltage resulting from the blowing of some fuses should be taken into account in the design. 4.2 Disconnecting requirements The fuse shall enable the faulty element to be disconnected when electrical breakdown of elem
48、ents occurs in a voltage range, in which Ne 1 2 0,9 U u = is the lowest, and Ne 2 2 2,5 U u = is the highest (instantaneous) value of the element voltage at the instant of fault. The range u 1to u 2is based on the voltage that might occur across the capacitor element at the instant of electrical bre
49、akdown. The u 2value is of a transient nature, mostly related to switching operations, and some allowance has been made for the extra voltage increase that might occur (before activation of protection) due to earlier disconnection of parallel elements in a series group of elements (See B.1). If the application of capacitors leads to u 1and u 2value, other than those indicated, for example for filter capacitors or when
