1、BSI Standards PublicationSeries capacitors for power systemsPart 3: Internal fusesBS EN 60143-3:2015National forewordThis British Standard is the UK implementation of EN 60143-3:2015. It is identical to IEC 60143-3:2015. It supersedes BS EN 60143-3:1998 which is withdrawn.The UK participation in its
2、 preparation was entrusted to TechnicalCommittee PEL/33, Power capacitors.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct app
3、lication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 86529 9ICS 29.120.50; 31.060.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Str
4、ategy Committee on 31 October 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60143-3:2015EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 60143-3 September 2015 ICS 31.060.70 Supersedes EN 60143-3:1998 English Version Series capacitors for power systems -
5、 Part 3: Internal fuses(IEC 60143-3:2015) Condensateurs srie destines tre installs sur desrseaux - Partie 3: Fusibles internes (IEC 60143-3:2015) Reihenkondensatoren fr Starkstromanlagen - Teil 3:Eingebaute Sicherungen (IEC 60143-3:2015) This European Standard was approved by CENELEC on 2015-07-14.
6、CENELEC members are bound to comply with the CEN/CENELEC Internal 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 obtained o
7、n application to the CEN-CENELEC Management Centre or to any CENELEC member. 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
8、CEN-CENELEC Management Centre has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hunga
9、ry, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechniqu
10、eEuropisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60143-3:2015 E BS EN 60143-3:2015EN 60143-3:2015 2 European fore
11、word The text of document 33/577/FDIS, future edition 2 of IEC 60143-3, prepared by IEC/TC 33 “Powercapacitors and their applications“ was submitted to the IEC-CENELEC parallel vote and approved byCENELEC as EN 60143-3:2015. The following dates are fixed: latest date by which the document has to be
12、implemented at national level bypublication of an identical nationalstandard or by endorsement (dop) 2016-04-14 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2018-07-14 This document supersedes EN 60143-3:1998. EN 60143-3:2015 includes the follo
13、wing significant technical changes with respect to EN 60143-3:1998: The test procedure has been largely simplified Attention is drawn to the possibility that some of the elements of this document may be the subject ofpatent rights. CENELEC and/or CEN shall not be held responsible for identifying any
14、 or all suchpatent rights. Endorsement notice The text of the International Standard IEC 60143-3:2015 was approved by CENELEC as a EuropeanStandard without any modification. In the official version, for Bibliography, the following notes have to be added for the standardsindicated: IEC 60549:2013 NOT
15、E Harmonized as EN 60549:2013. IEC 60871-4:2014 NOTE Harmonized as EN 60871-4:2014. IEC 60931-3:1996 NOTE Harmonized as EN 60931-3:1996. BS EN 60143-3:2015EN 60143-3:2015 3 Annex ZA(normative) Normative references to international publicationswith their corresponding European publications The follow
16、ing documents, in whole or in part, are normatively referenced in this document and areindispensable for its application. For dated references, only the edition cited applies. For undatedreferences, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an Inte
17、rnational Publication has been modified by common modifications, indicated by (mod), the relevantEN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:www.cenelec.eu. Publication Year Title EN/HD Year IEC 60143-1 2004 Ser
18、ies capacitors for power systems - Part1: General EN 60143-1 2004 IEC 60143-2 2012 Series capacitors for power systems - Part2: Protective equipment for seriescapacitor banks EN 60143-2 2013 BS EN 60143-3:2015 2 IEC 60143-3:2015 IEC 2015 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references. 5 3 Te
19、rms and definitions 5 4 Performance requirements . 5 4.1 General . 5 4.2 Disconnecting requirements 6 4.3 Withstand requirements . 6 5 Tests . 7 5.1 Routine tests . 7 5.1.1 General . 7 5.1.2 Discharge test 7 5.2 Type tests . 7 5.2.1 General . 7 5.2.2 Discharge test on fuses 7 5.2.3 Disconnecting tes
20、t on fuses 8 5.2.4 Voltage test after opening the container 8 Annex A (normative) Test procedures for the disconnecting test on internal fuses . 9 A.1 General . 9 A.2 Test procedure Mechanical puncture of the element 9 Annex B (informative) Guide for coordination of fuse protection 10 B.1 General .
21、10 B.2 Protection sequence 10 Bibliography . 11 BS EN 60143-3:2015IEC 60143-3:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SERIES CAPACITORS FOR POWER SYSTEMS Part 3: Internal fuses FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standar
22、dization comprisingall national electrotechnical committees (IEC National Committees). The object of IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields. Tothis end and in addition to other activities, IEC publishes Internat
23、ional Standards, Technical Specifications,Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IECPublication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interestedin the subject dealt with may participate in th
24、is preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closelywith the International Organization for Standardization (ISO) in accordance with conditions determined byagreement between the two o
25、rganizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an internationalconsensus of opinion on the relevant subjects since each technical committee has representation from allinterested IEC National Committees. 3) IEC Publications have the for
26、m of recommendations for international use and are accepted by IEC NationalCommittees in that sense. While all reasonable efforts are made to ensure that the technical content of IECPublications is accurate, IEC cannot be held responsible for the way in which they are used or for anymisinterpretatio
27、n by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publicationstransparently to the maximum extent possible in their national and regional publications. Any divergencebetween any IEC Publication and the corresponding national or regiona
28、l publication shall be clearly indicated inthe latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformityassessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for anyservices carried out by ind
29、ependent 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, employees, servants or agents including individual experts andmembers of its technical committees and IEC National Committees for any
30、 personal injury, property damage orother damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) andexpenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IECPublications. 8) Attention is drawn to the Normative r
31、eferences cited in this publication. Use of the referenced publications isindispensable 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 ofpatent rights. IEC shall not be held responsible fo
32、r identifying any or all such patent rights. International Standard IEC 60143-3 has been prepared by IEC technical committee 33: Powercapacitors and their applications. This second edition cancels and replaces the first edition published in 1998. This editionconstitutes a technical revision. This ed
33、ition includes the following significant technical changes with respect to the previousedition: The test procedure has been largely simplified. BS EN 60143-3:2015 4 IEC 60143-3:2015 IEC 2015 The text of this standard is based on the following documents: FDIS Report on voting 33/577/FDIS 33/579/RVD F
34、ull information on the voting for the approval of this standard can be found in the report onvoting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 60143 series, published under the general title Series
35、 capacitorsfor power systems, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged untilthe stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the datarelated to the specific publication. At this date, the pu
36、blication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. BS EN 60143-3:2015IEC 60143-3:2015 IEC 2015 5 SERIES CAPACITORS FOR POWER SYSTEMS Part 3: Internal fuses 1 Scope This part of IEC 60143 applies to internal fuses designed to isolate faulty capacitor elements,to allo
37、w operation of the remaining parts of that capacitor unit and the bank in which thecapacitor unit is connected. Such fuses are not a substitute for a switching device such as acircuit-breaker, or for external protection of the capacitor bank, or any part thereof. The object of this part of IEC 60143
38、 is: to formulate requirements regarding performance and testing; to provide a guide for coordination of fuse and bank protection. NOTE External fuses for series capacitors are treated in IEC 60143-1:2004, Annex A: “Test requirements andapplication guide for external fuses and units to be externally
39、 fused“. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document andare indispensable for its application. For dated references, only the edition cited applies. Forundated references, the latest edition of the referenced document (including an
40、yamendments) applies. IEC 60143-1:2004, Series capacitors for power systems Part 1: General IEC 60143-2:2012, Series capacitors for power systems Part 2: Protective equipment forseries capacitor banks 3 Terms and definitions For the purposes of this document, the terms and definitions contained in I
41、EC 60143-1 andIEC 60143-2, as well as the following, apply. 3.1 rated voltage of a capacitor element UNer.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 with the element(s) which the fuse
42、is intended to isolate if theelement(s) becomes faulty. The range of currents and voltages for the fuse is thereforedependent on the capacitor design, and in some cases also on the design of the bank inwhich the fuse is connected. The operation of an internal fuse is in general determined by one or
43、both of the two followingfactors: BS EN 60143-3:2015 6 IEC 60143-3:2015 IEC 2015 the discharge energy from elements or units connected in parallel with the faulty elementor unit; the power-frequency fault current. 4.2 Disconnecting requirements The fuse shall enable the faulty element to be disconne
44、cted when electrical breakdown ofelements occurs in a voltage range, in which u1is the lowest, and u2is the highest(instantaneous) value of the voltage between the terminals of the unit at the instant of fault. The recommended values for u1and u2are the following: u1= 0,5 2 UNu2= 2 UlimFor u1, other
45、 values can be agreed upon between purchaser and manufacturer. The u2value is of a transient nature. The u1and u2values above are based on the voltage that may normally occur across thecapacitor unit terminals at the instant of electrical breakdown of the element. The purchaser shall specify if the
46、u1value differs from the stated one. If so, the value statedin 3.2.3.1 shall be changed accordingly. The u2value cannot be exceeded due to the overvoltage protector. A voltage lower than theu1value can occur in service, but breakdowns are unlikely to take place under theseconditions. 4.3 Withstand r
47、equirements 4.3.1 After operation, the gap in the blown fuse shall withstand full element voltage, plusany unbalance voltage due to fuse action, and any short-time transient overvoltages normallyexperienced during the life of the capacitor. 4.3.2 Throughout the life of the capacitor, the fuse shall
48、be capable of carryingcontinuously a current equal to or greater than the rated capacitor unit current (includingharmonics if applicable), divided by the number of parallel fused paths. In addition, the fuseshall withstand the working currents given in 7.1 and 10.3 of IEC 60143-1:2004. 4.3.3 The fus
49、es shall be capable of withstanding the high-amplitude, high-frequencydischarge currents due to operation of the overvoltage protector and/or the bypass switch,expected during the life of the capacitor. 4.3.4 The fuse connected to the undamaged element(s) shall be able to carry thedischarge currents due to the breakdown of element(s). 4.3.5 The fuse shall be able to carry the currents due to short-circuit faults on the bankexternal to the unit(s) occurring within the voltage range in accordan
