1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationRailway applications Rolling stock equipment Capacitors for power electronicsPart 1: Paper/plastic film capacitorsBS EN 61881-1:2011National forewordThis British Standard is the
2、UK implementation of EN 61881-1:2011. It is identical to IEC 61881-1:2010. It supersedes BS EN 61881:1999, which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee GEL/9, Railway Electrotechnical Applications, to Subcommittee GEL/9/2, Railway Electrotechnical A
3、pplications - Rolling stock.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011ISBN 978 0 580 60889 6 ICS
4、 31.060.30; 45.060.01Compliance with a British Standard cannot con fer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2011.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDAR
5、DBS EN 61881-1:2011EUROPEAN STANDARD EN 61881-1 NORME EUROPENNE EUROPISCHE NORM February 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000
6、 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61881-1:2011 E ICS 45.060 Supersedes EN 61881:1999English version Railway applications - Rolling stock equipment - Capacitors for power electronics - Part 1: Paper/pla
7、stic film capacitors (IEC 61881-1:2010) Applications ferroviaires - Matriel roulant - Condensateurs pour lectronique de puissance - Partie 1: Condensateurs papier et film plastique (CEI 61881-1:2010) Bahnanwendungen - Betriebsmittel auf Bahnfahrzeugen - Kondensatoren fr Leistungselektronik - Teil 1:
8、 Papier-/Foliekondensatoren (IEC 61881-1:2010) This European Standard was approved by CENELEC on 2011-01-02. 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 al
9、teration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by
10、 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. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denma
11、rk, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61881-1:2011EN 61881-1:2011 Foreword The text of doc
12、ument 9/1405/FDIS, future edition 1 of IEC 61881-1, prepared by IEC TC 9, Electrical equipment and systems for railways, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61881-1 on 2011-01-02. This European Standard supersedes EN 61881:1999. Attention is drawn to the
13、possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication
14、of an identical national standard or by endorsement (dop) 2011-10-02 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2014-01-02 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61881-1:2010 was approved
15、 by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60077-1:1999 NOTE Harmonized as EN 60077-1:2002 (modified). IEC 60077-2:1999 NOTE Harmonized as EN 60077-2:2002 (modified). IE
16、C 60110-1:1998 NOTE Harmonized as EN 60110-1:1998 (not modified). IEC 60146-1-1:2009 NOTE Harmonized as EN 60146-1-1:2009 (not modified). IEC 60384-14:2005 NOTE Harmonized as EN 60384-14:2005 (not modified). IEC 60664-1:2007 NOTE Harmonized as EN 60664-1:2007 (not modified). IEC 60831-1:1996 NOTE Ha
17、rmonized as EN 60831-1:1996 (not modified). IEC 60831-2:1995 NOTE Harmonized as EN 60831-2:1996 (not modified). IEC 60871-1:2005 NOTE Harmonized as EN 60871-1:2005 (not modified). IEC 60931-1:1996 NOTE Harmonized as EN 60931-1:1996 (not modified). IEC 60931-2:1995 NOTE Harmonized as EN 60931-2:1996
18、(not modified). IEC 61071 NOTE Harmonized as EN 61071. IEC 61287-1:2005 NOTE Harmonized as EN 61287-1:2006 (not modified). _ BS EN 61881-1:2011EN 61881-1:2011 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenc
19、ed documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modi
20、fications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-2-14 - Environmental testing - Part 2-14: Tests - Test N: Change of temperature EN 60068-2-14 - IEC 60068-2-20 - Environmental testing - Part 2-20: Tests - Test T: Test methods for solderability an
21、d resistance to soldering heat of devices with leads EN 60068-2-20 - IEC 60068-2-21 - Environmental testing - Part 2-21: Tests - Test U: Robustness of terminations and integral mounting devices EN 60068-2-21 - IEC 60068-2-78 - Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady st
22、ate EN 60068-2-78 - IEC 60269-1 - Low-voltage fuses - Part 1: General requirements EN 60269-1 - IEC 60695-2-11 - Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products EN 60695-2-11 - IEC 60695-11-5 - Fire hazard testing - Part 11-5
23、: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance EN 60695-11-5 - IEC 60721-3-5 - Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 5: Ground vehicle installations EN
24、 60721-3-5 - IEC 61373 - Railway applications - Rolling stock equipment - Shock and vibration tests EN 61373 - IEC 62491 - Industrial systems, installations and equipment and industrial products - Labelling of cables and cores EN 62491 - IEC 62497-1 - Railway applications - Insulation coordination -
25、 Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment - - BS EN 61881-1:201161881-1 IEC:2010 CONTENTS 1 Scope.7 2 Normative references.8 3 Terms and definitions 8 4 Service conditions. .13 4.1 Normal service conditions . .13 4.1.1 Altitude . .13
26、4.1.2 Temperature 13 4.1.3 Operating temperature with forced ventilation. .13 4.2 Unusual service conditions . .13 5 Quality requirements and tests.14 5.1 Test requirements14 5.1.1 General . 14 5.1.2 Test conditions .14 5.2 Classification of tests. .14 5.2.1 Routine tests . .14 5.2.2 Type tests15 5.
27、2.3 Acceptance tests 15 5.2.4 Summary of tests16 5.3 Capacitance and tan measurements (routine test) .16 5.3.1 Measuring procedure .16 5.3.2 Capacitance tolerances. 17 5.3.3 Loss requirements (tan ) . 17 5.4 Capacitor loss tangent (tan ) measurement (type test) . . 17 5.4.1 Measurements . .17 5.4.2
28、Loss requirements . 17 5.5 Voltage test between terminals . 17 5.5.1 General . 17 5.5.2 Routine test .18 5.5.3 Type test . 18 5.6 AC voltage test between terminals and case .18 5.6.1 Routine test .18 5.6.2 Type test . 19 5.7 Test of internal discharge device. 19 5.8 Sealing test . .19 5.9 Surge disc
29、harge test. 19 5.10 Thermal stability test. 20 5.10.1 General . 20 5.10.2 Measuring procedure .20 5.11 Self-healing test. 21 5.12 Resonance frequency measurement . .21 5.13 Environmental testing . 21 5.13.1 Change of temperature . 21 5.13.2 Damp heat, steady state . 21 5.14 Mechanical testing .22 5.
30、14.1 Mechanical tests of terminals . 22 BS EN 61881-1:201161881-1 IEC:2010 5.14.2 External inspection . .23 5.14.3 Vibration and shocks. .23 5.15 Endurance test . .23 5.15.1 Conditioning of the units before the test . 23 5.15.2 Initial capacitance and loss factor measurements . 23 5.15.3 Endurance t
31、est .23 5.15.4 Final capacitance and tan measurement24 5.15.5 Acceptance criteria . .25 5.16 Destruction test . 25 5.16.1 General . 25 5.16.2 Test sequence for AC capacitors26 5.16.3 Test sequence for DC capacitors .27 5.17 Disconnecting test on internal fuses30 5.17.1 General . 30 5.17.2 Disconnect
32、ing requirements 30 5.17.3 Withstand requirements . .30 5.17.4 Test procedure .31 5.17.5 Capacitance measurement32 5.17.6 Visual checking.32 5.17.7 Voltage test .32 5.18 Partial discharge measurements (optional type tests) . .32 6 Overloads 32 7 Safety requirements.33 7.1 Discharge device . 33 7.2 C
33、ase connections . .33 7.3 Protection of the environment 33 7.4 Fire hazard . 33 7.5 Other safety requirements. .33 8 Markings34 8.1 Marking of the units .34 8.1.1 Rating plate .34 8.1.2 Data sheet .34 9 Guide to installation and operation 34 9.1 General .34 9.2 Choice of rated voltage .35 9.3 Operat
34、ing temperature. .35 9.3.1 Installation .35 9.3.2 Unusual cooling conditions36 9.4 Special service conditions. .36 9.5 Overvoltages 36 9.6 Overload currents 36 9.7 Switching and protective devices . .37 9.8 Choice of creepage distance and clearance . .37 9.9 Connections . 37 9.10 Parallel connection
35、s of capacitors .37 9.11 Series connections of capacitors. 37 9.12 Magnetic losses and eddy currents .38 9.13 Guide for internal fuse and disconnector protection in capacitors. 38 9.14 Guide for unprotected capacitors . .38 BS EN 61881-1:201161881-1 IEC:2010 Annex A (informative) Waveforms .39 Annex
36、 B (normative) Operational limits of capacitors with sinusoidal voltages as a function of frequency and at maximum temperature (max) . 41 Annex C (normative) Resonance frequency measuring methods Examples .43 Bibliography . 45 Figure 1 Destruction test arrangement27 Figure 2 N source DC type 1. 29 F
37、igure 3 N source DC type 2. 29 Figure A.1a Commutating waveform . 39 Figure A.1b Commutating circuit example. .40 Figure A.1c Damping capacitor for gate turn-off thyristors waveform . 40 Figure A.1d Damping circuit example .40 Figure B.1 Supply conditions . 41 Figure C.1 Measuring circuit.43 Figure
38、C.2 Relation between the voltage across the capacitor and the supply frequency. .44 Figure C.3 Discharge current wave shape. .44 Table 1 Maximum temperature of cooling medium for unlimited time. 13 Table 2 Summary of tests. 16 Table 3 Test voltage between terminals . 17 Table 4 Damp heat test .22 Ta
39、ble 5 Testing the robustness of terminals.22 Table 6 Example of current-carrying capacities of screw terminals and bolts . 23 Table 7 Endurance test .24 Table 8 Destruction test as a function of type of safety system. 25 Table 9 Maximum permissible voltage 32 BS EN 61881-1:201161881-1 IEC:2010 7 RAI
40、LWAY APPLICATIONS ROLLING STOCK EQUIPMENT CAPACITORS FOR POWER ELECTRONICS Part 1: Paper/plastic film capacitors 1 Scope This part of IEC 61881 applies to capacitors for power electronics intended to be used on rolling stock. The rated voltage of capacitors covered by this part is limited to 10 000
41、V. The operating frequency of the systems in which these capacitors are used is usually up to 15 kHz, while the pulse frequencies may be up to 5 to 10 times the operating frequency. It distinguishes between AC and DC capacitors. They are considered as components mounted in enclosures. NOTE This stan
42、dard covers an extremely wide range of capacitor technologies for numerous applications: overvoltage protection, DC and AC filtering, switching circuits, DC energy storage, auxiliary inverters, etc. Examples are given in Clause 9. The following are excluded from this standard: capacitors for inducti
43、on heat-generating plants operating at frequencies between 40 Hz and 24 000 Hz (see IEC 60110-1 and 60110-2); capacitors for motor applications and the like (see IEC 60252-1 and IEC 60252-2); capacitors to be used in circuits for blocking one or more harmonics in power supply networks; small AC capa
44、citors as used for fluorescent and discharge lamps (see IEC 61048 and IEC 61049); capacitors for suppression of radio interference (see IEC 60384-14); shunt capacitors for AC power systems having a rated voltage above 1 000 V (see IEC 60871-1 and IEC 60871-2); shunt power capacitors of the self-heal
45、ing type for AC systems having a rated voltage up to and including 1 000 V (see IEC 60831-1 and IEC 60831-2); shunt power capacitor of the non self-healing type for AC systems having a rated voltage up to and including 1 000 V (see IEC 60931-1 and IEC 60931-2); series capacitors for power systems (s
46、ee IEC 60143-1, IEC 60143-2 and IEC 60143-3); coupling capacitors and capacitors dividers (see IEC 60358); capacitors for applications requiring energy storage/high current discharge such as photocopiers and lasers; capacitors for microwave ovens; capacitors for power electronics (see IEC 61071). BS
47、 EN 61881-1:2011 8 61881-1 IEC:2010 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments)
48、 applies. IEC 60068-2-14, Environmental testing Part 2-14: Tests. Test N: Change of temperature IEC 60068-2-20, Environmental testing Part 2-20: Tests. Test T: Test methods for solderability and resistance to soldering heat of devices with leads IEC 60068-2-21, Environmental testing Part 2-21: Tests
49、. Test U: Robustness of terminations and integral mounting devices IEC 60068-2-78, Environmental testing Part 2-78: Tests. Test Cab: Damp heat, steady state IEC 60269-1, Low-voltage fuses Part 1: General requirements IEC 60695-2-11, Fire hazard testing Part 2-11: Glowing/hot-wire based test methods Glow-wire flammability test method for end-products IEC 60695-11-5, Fire hazard testing Part 11-5: Test flames
