1、 IEC 61881-1Edition 1.0 2010-08INTERNATIONAL STANDARD NORME INTERNATIONALERailway applications Rolling stock equipment Capacitors for power electronics Part 1: Paper/plastic film capacitors Applications ferroviaires Matriel roulant Condensateurs pour lectronique de puissance Partie 1: Condensateurs
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16、questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61881-1Edition 1.0 2010-08INTERNATIONAL STANDARD NORME INTERNATIONALERailway applications Rolling stock equipment Capacitors for power electronics Part 1: Paper/plastic fi
17、lm capacitors Applications ferroviaires Matriel roulant Condensateurs pour lectronique de puissance Partie 1: Condensateurs papier et film plastique INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XICS 45.060 PRICE CODECODE PRIXISBN 978-2-88912-094-9 Registered t
18、rademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61881-1 IEC:2010 CONTENTS FOREWORD.5 1 Scope.7 2 Normative references8 3 Terms and definitions .8 4 Service conditions.13 4.1 Normal service conditions13 4.1.1 Altitude 13 4.1.2
19、Temperature13 4.1.3 Operating temperature with forced ventilation.13 4.2 Unusual service conditions 13 5 Quality requirements and tests14 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 5.2.3 Acceptance test
20、s .15 5.2.4 Summary of tests.16 5.3 Capacitance and tan measurements (routine test) .16 5.3.1 Measuring procedure .16 5.3.2 Capacitance tolerances17 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 Loss requirements .17 5.5 Vol
21、tage 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 device19 5.8 Sealing test .19 5.9 Surge discharge test19 5.10 Thermal stability test
22、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 5.14.1 Mechanical tests of terminals.22 61881-1 IEC:2010 3
23、 5.14.2 External inspection 23 5.14.3 Vibration and shocks23 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 test 23 5.15.4 Final capacitance and tan measurement24 5.15.5 Acceptance criteria 25 5.
24、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 fuses.30 5.17.1 General .30 5.17.2 Disconnecting requirements.30 5.17.3 Withstand requirements .30 5.17.4 Test procedure 31 5.17.5 Capaci
25、tance measurement.32 5.17.6 Visual checking32 5.17.7 Voltage test .32 5.18 Partial discharge measurements (optional type tests).32 6 Overloads.32 7 Safety requirements33 7.1 Discharge device .33 7.2 Case connections 33 7.3 Protection of the environment 33 7.4 Fire hazard 33 7.5 Other safety requirem
26、ents33 8 Markings.34 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 voltage35 9.3 Operating temperature.35 9.3.1 Installation.35 9.3.2 Unusual cooling conditions.36 9.4 Special service conditions36
27、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 connections of capacitors37 9.11 Series connections of capacitors37 9.12 Magnetic losses and eddy currents 38 9.13 Guide for inter
28、nal fuse and disconnector protection in capacitors38 9.14 Guide for unprotected capacitors .38 4 61881-1 IEC:2010 Annex A (informative) Waveforms 39 Annex B (normative) Operational limits of capacitors with sinusoidal voltages as a function of frequency and at maximum temperature (max) .41 Annex C (
29、normative) Resonance frequency measuring methods Examples 43 Bibliography45 Figure 1 Destruction test arrangement27 Figure 2 N source DC type 129 Figure 3 N source DC type 229 Figure A.1a Commutating waveform .39 Figure A.1b Commutating circuit example.40 Figure A.1c Damping capacitor for gate turn-
30、off thyristors waveform .40 Figure A.1d Damping circuit example .40 Figure B.1 Supply conditions 41 Figure C.1 Measuring circuit.43 Figure C.2 Relation between the voltage across the capacitor and the supply frequency44 Figure C.3 Discharge current wave shape.44 Table 1 Maximum temperature of coolin
31、g medium for unlimited time.13 Table 2 Summary of tests.16 Table 3 Test voltage between terminals17 Table 4 Damp heat test 22 Table 5 Testing the robustness of terminals22 Table 6 Example of current-carrying capacities of screw terminals and bolts.23 Table 7 Endurance test 24 Table 8 Destruction tes
32、t as a function of type of safety system25 Table 9 Maximum permissible voltage 32 61881-1 IEC:2010 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ RAILWAY APPLICATIONS ROLLING STOCK EQUIPMENT CAPACITORS FOR POWER ELECTRONICS Part 1: Paper/plastic film capacitors FOREWORD 1) The International Electrote
33、chnical 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 standardization in the electrical and electronic fields. To t
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40、EC 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, employees, servants or agents including individual
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42、EC 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 the possibility that some of the elements of this I
43、EC 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 61881-1 has been prepared by IEC technical committee 9: Electrical equipment and systems for railways. IEC 61881-1 cancels and replaces IEC
44、61881 (1999). The text of this standard is based on the following documents: FDIS Report on voting 9/1405/FDIS 9/1454/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 accordanc
45、e with the ISO/IEC Directives, Part 2. 6 61881-1 IEC:2010 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, the publ
46、ication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 61881-1 IEC:2010 7 RAILWAY 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 intende
47、d to be used on rolling stock. The rated voltage of capacitors covered by this part is limited to 10 000 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 distinguis
48、hes between AC and DC capacitors. They are considered as components mounted in enclosures. NOTE This standard covers an extremely wide range of capacitor technologies for numerous applications: overvoltage protection, DC and AC filtering, switching circuits, DC energy storage, auxiliary inverters, e
49、tc. Examples are given in Clause 9. The following are excluded from this standard: capacitors for induction 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
