EN 60871-1-2014 en Shunt capacitors for a c power systems having a rated voltage above 1 000 V - Part 1 General.pdf

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1、BSI Standards PublicationShunt capacitors for a.c.power systems having a rated voltage above above 1 000 V Part 1: GeneralBS EN 60871-1:2014National forewordThis British Standard is the UK implementation of EN 60871-1:2014. It is identical to IEC 60871-1:2014. It supersedes BS EN 60871-1:2005 which

2、is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PEL/33, Power capacitors.A list of organizations represented on this committee can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. U

3、sers are responsible for its correct application. The British Standards Institution 2014Published by BSI Standards Limited 2014ISBN 978 0 580 79033 1ICS 31.060.70; 29.240.99Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the a

4、uthority of theStandards Policy and Strategy Committee on 31 August 2014.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60871-1:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60871-1 August 2014 ICS 31.060.70; 29.240.99 Supersedes EN 60871-1:2005 Engl

5、ish Version Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V - Part 1: General (IEC 60871-1:2014) Condensateurs shunt pour rseaux courant alternatif de tension assigne suprieure 1 000 V - Partie 1: Gnralits (CEI 60871-1:2014) Parallelkondensatoren fr Wechselspannungs-Star

6、kstromanlagen mit einer Nennspannung ber 1 kV - Teil 1: Allgemeines (IEC 60871-1:2014) This European Standard was approved by CENELEC on 2014-06-26. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat

7、us of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French

8、, 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 CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, B

9、elgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swe

10、den, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploi

11、tation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60871-1:2014 E BS EN 60871-1:2014EN 60871-1:2014 - 2 - Foreword The text of document 33/559/FDIS, future edition 4 of IEC 60871-1, prepared by IEC/TC 33 “Power capacitors and their applications“ was submitted to

12、the IEC-CENELEC parallel vote and approved by CENELEC as EN 60871-1:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-03-26 latest date by which the national sta

13、ndards conflicting with the document have to be withdrawn (dow) 2017-06-26 This document supersedes EN 60871-1:2005. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying

14、any or all such patent rights. Endorsement notice The text of the International Standard IEC 60871-1:2014 was approved 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 60038:20

15、09 NOTE Harmonized as EN 60038:2011 (modified). IEC 60071-2:1996 NOTE Harmonized as EN 60071-2:1997 (not modified). IEC 60099 Series NOTE Harmonized as EN 60099 Series (partly modified). IEC 60110-1 NOTE Harmonized as EN 60110-1. IEC 60143 Series NOTE Harmonized as EN 60143 Series (not modified). IE

16、C 60252 Series NOTE Harmonized as EN 60252 Series (not modified). IEC 60358 Series NOTE Harmonized as EN 60358 Series (not modified). IEC 60831 Series NOTE Harmonized as EN 60831 Series (not modified). IEC 60931 Series NOTE Harmonized as EN 60931 Series (not modified). IEC 61048 NOTE Harmonized as E

17、N 61048. IEC 61049 NOTE Harmonized as EN 61049. IEC 61071 NOTE Harmonized as EN 61071. IEC 61270-1 NOTE Harmonized as EN 61270-1. IEC 61642 NOTE Harmonized as EN 61642. BS EN 60871-1:2014- 3 - EN 60871-1:2014 Annex ZA (normative) Normative references to international publications with their correspo

18、nding European publications 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

19、amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/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

20、Year Title EN/HD Year IEC 60060-1 - High-voltage test techniques - Part 1: General definitions and test requirements EN 60060-1 - IEC 60071-1 2006 Insulation co-ordination - Part 1: Definitions, principles and rules EN 60071-1 2006 IEC 60549 - High-voltage fuses for the external protection of shunt

21、capacitors EN 60549 - IEC/TS 60815 series Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - IEC 60871-4 1996 Shunt capacitors for a.c. power systems having a rated voltage above 1000 V - Part 4: Internal fuses EN 60871-4 1996 1)1) EN 60871-4:1996 is supe

22、rseded by EN 60871-4:2014, which is based on IEC 60871-4:2014. BS EN 60871-1:2014 2 IEC 60871-1:2014 IEC 2014 CONTENTS 1 Scope 8 2 Normative references 9 3 Terms and definitions 9 4 Service conditions . 12 4.1 Normal service conditions . 12 4.2 Unusual service conditions . 13 5 Quality requirements

23、and tests 13 5.1 General . 13 5.2 Test conditions . 13 6 Classification of tests. 13 6.1 General . 13 6.2 Routine tests. 13 6.3 Type tests . 14 6.4 Acceptance tests 14 6.5 Endurance test (special test) . 14 7 Capacitance measurement (routine test) 14 7.1 Measuring procedure 14 7.2 Capacitance tolera

24、nces . 15 8 Measurement of the tangent of the loss angle (tan ) of the capacitor (routine test) . 15 8.1 Measuring procedure 15 8.2 Loss requirements 16 8.3 Losses in external fuses . 16 9 Voltage test between terminals (routine test) . 16 9.1 General . 16 9.2 AC test . 16 9.3 DC test . 16 10 AC vol

25、tage test between terminals and container (routine test) 16 11 Test of internal discharge device (routine test) 17 12 Sealing test (routine test) 17 13 Thermal stability test (type test) . 17 13.1 General . 17 13.2 Measuring procedure 17 14 Measurement of the tangent of the loss angle (tan ) of the

26、capacitor at elevated temperature (type test) 18 14.1 Measuring procedure 18 14.2 Requirements . 18 15 Voltage tests between terminals and container (type tests) 19 15.1 AC voltage test between terminals and container 19 15.2 Lightning impulse test between terminals and container 19 16 Overvoltage t

27、est (type test) . 20 16.1 General . 20 16.2 Conditioning of the sample before the test 20 16.3 Test procedure 20 BS EN 60871-1:2014IEC 60871-1:2014 IEC 2014 3 16.4 Acceptance criteria . 21 16.5 Validity of test . 21 16.5.1 General . 21 16.5.2 Element design 21 16.5.3 Test unit design . 21 16.5.4 Wav

28、eform of overvoltage . 21 17 Short-circuit discharge test (type test) . 22 18 Insulation levels . 22 18.1 Standard insulation values 22 18.2 General requirements . 23 18.2.1 General . 23 18.2.2 Adjacent insulating components and equipment . 23 18.2.3 Capacitors insulated from ground 23 18.2.4 Capaci

29、tors with neutral connected to ground . 23 18.3 Test between terminals and container of capacitor units . 24 18.4 Capacitors in single-phase systems 24 19 Overloads Maximum permissible voltage 27 19.1 Long duration voltages 27 19.2 Switching overvoltages . 27 20 Overloads Maximum permissible current

30、. 27 21 Safety requirements for discharge devices 28 22 Safety requirements for container connections 28 23 Safety requirements for protection of the environment . 28 24 Other safety requirements . 28 25 Markings of the capacitor unit 29 25.1 Rating plate 29 25.2 Standardized connection symbols . 29

31、 25.3 Warning plate . 29 26 Markings of the capacitor bank 30 26.1 Instruction sheet or rating plate . 30 26.2 Warning plate . 30 27 Guide for installation and operation . 30 27.1 General . 30 27.2 Choice of the rated voltage . 30 27.3 Operating temperature 31 27.3.1 General . 31 27.3.2 Installation

32、 . 31 27.3.3 High ambient air temperature. 32 27.4 Special service conditions . 32 27.5 Overvoltages 32 27.5.1 General . 32 27.5.2 Restriking of switches 33 27.5.3 Lightning . 33 27.5.4 Motor self-excitation 33 27.5.5 Star-delta starting 33 27.5.6 Capacitor unit selection . 33 27.6 Overload currents

33、 . 33 BS EN 60871-1:2014 4 IEC 60871-1:2014 IEC 2014 27.6.1 Continuous overcurrents 33 27.6.2 Transient overcurrents . 34 27.7 Switching and protective devices 34 27.7.1 Withstand requirements . 34 27.7.2 Restrike-free circuit-breakers . 35 27.7.3 Relay settings 35 27.8 Choice of insulation levels 3

34、6 27.8.1 General . 36 27.8.2 Altitudes exceeding 1 000 m 36 27.8.3 Influence of the capacitor itself 36 27.8.4 Overhead ground wires 38 27.9 Choice of creepage distances and air clearance . 38 27.9.1 Creepage distance . 38 27.9.2 Air clearances 39 27.10 Capacitors connected to systems with audio-fre

35、quency remote control . 41 Annex A (normative) Precautions to be taken to avoid pollution of the environment by polychlorinated biphenyls 42 Annex B (normative) Additional definitions, requirements and tests for power filter capacitors . 43 Annex C (normative) Test requirements and application guide

36、 for external fuses and units to be externally fused . 45 C.1 General . 45 C.2 Terms and definitions 45 C.3 Performance requirements 45 C.4 Tests 45 C.4.1 Tests on fuses . 45 C.4.2 Type tests on capacitor containers 45 C.5 Guide for coordination of fuse protection . 46 C.5.1 General . 46 C.5.2 Prote

37、ction sequence 46 C.6 Choice of fuses . 46 C.6.1 General . 46 C.6.2 Non current-limiting fuses 47 C.6.3 Current-limiting fuses. 47 C.7 Information needed by the user of the fuses 47 Annex D (informative) Formulae for capacitors and installations 48 D.1 Computation of the output of three-phase capaci

38、tors from three single-phase capacitance measurements . 48 D.2 Resonant frequency 48 D.3 Voltage increase . 48 D.4 Inrush transient current . 49 D.4.1 Switching in of single capacitor bank . 49 D.4.2 Switching on of a bank in parallel with energized bank(s) 49 D.5 Discharge resistance in single-phas

39、e unit . 49 D.6 Discharge time to 10 % of rated voltage 49 Annex E (informative) Capacitor bank fusing and unit arrangement 51 E.1 General . 51 E.2 Internally fused capacitor bank . 51 E.3 Externally fused capacitor bank 51 BS EN 60871-1:2014IEC 60871-1:2014 IEC 2014 5 E.4 Fuseless capacitor bank .

40、51 Bibliography 54 Figure 1 Time and amplitude limits for an overvoltage period . 22 Figure 2 Bank isolated from ground . 37 Figure 3 Bank isolated from ground (containers connected to ground) 37 Figure 4 Bank connected to ground 38 Figure 5 Air clearance versus AC withstand . 41 Figure E.1 Typical

41、connections between capacitor units . 52 Figure E.2 Typical connections between elements within a capacitor unit 53 Table 1 Letter symbols for upper limit of temperature range . 12 Table 2 Ambient air temperature for the thermal stability test . 18 Table 3 Standard insulation levels for range I (1 k

42、V 245 kV) 26 Table 5 Admissible voltage levels in service 27 Table 6 Insulation requirements . 36 Table 7 Specific creepage distances 38 Table 8 Correlation between standard lightning impulse withstand voltages and minimum air clearances (Table A.1 from IEC 60071-2:1996) . 40 BS EN 60871-1:2014 8 IE

43、C 60871-1:2014 IEC 2014 SHUNT CAPACITORS FOR AC POWER SYSTEMS HAVING A RATED VOLTAGE ABOVE 1 000 V Part 1: General 1 Scope This part of IEC 60871 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems having a ra

44、ted voltage above 1 000 V and frequencies of 15 Hz to 60 Hz. This part of IEC 60871 also applies to capacitors intended for use in power filter circuits. Additional definitions, requirements and tests for filter capacitors are given in Annex B. Additional requirements for capacitors protected by int

45、ernal fuses as well as requirements for the internal fuses are given in IEC 60871-4. Requirements for capacitors to be protected by external fuses, as well as requirements for the same, are given in Annex C. This standard does not apply to capacitors of the self-healing metallized dielectric type. T

46、he following capacitors are excluded from this part of IEC 60871: capacitors for inductive heat-generating plants operating at frequencies between 40 Hz and 24 000 Hz (IEC 60110-1); series capacitors for power systems (see the IEC 60143 series); capacitors for motor applications and the like (see th

47、e IEC 60252 series); coupling capacitors and capacitor dividers (IEC 60358); shunt capacitors for a.c. power systems having rated voltage up to and including 1 000 V (see the IEC 60831 and IEC 60931 series); small a.c. capacitors to be used for fluorescent and discharge lamps (IEC 61048 and IEC 6104

48、9); capacitors to be used in power electronic circuits (IEC 61071); capacitors for microwave ovens (IEC 61270-1); capacitors for suppression of radio interference; capacitors intended for use with a.c. voltage superimposed on d.c. voltage. Accessories such as insulators, switches, instrument transfo

49、rmers, external fuses, etc. are in accordance with the relevant IEC standards. The object of this part of IEC 60871 is as follows: a) to formulate uniform rules regarding the performance and rating of units and banks, and the testing of units; b) to formulate specific safety rules; c) to provide a guide for installation and operation. BS EN 60871-1:2014IEC 60871-1:2014 IEC 2014 9 2 Normative references The following documents, in whole or in part, are normativel