EN 62271-112-2013 en High-voltage switchgear and controlgear - Part 112 Alternating current high-speed earthing switches for secondary arc extinction on transmission lines.pdf

1、BSI Standards PublicationHigh-voltage switchgear and controlgearPart 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission linesBS EN 62271-112:2013National forewordThis British Standard is the UK implementation of EN 62271-112:2013. It isidentical to IEC

2、 62271-112:2013.The UK participation in its preparation was entrusted by TechnicalCommittee PEL/17, Switchgear, controlgear, and HV-LV co-ordination, toSubcommittee PEL/17/1, High-voltage switchgear and controlgear.A list of organizations represented on this committee can be obtained onrequest to it

3、s secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 76648 0ICS 29.130.10; 29.130.99Compliance with a British

4、 Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62271-112:2013EUROPEAN STANDARD EN 622

5、71-112 NORME EUROPENNE EUROPISCHE NORM October 2013 CENELEC 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 2013 CENELEC - All r

6、ights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62271-112:2013 E ICS 29.130.10; 29.130.99 English version High-voltage switchgear and controlgear - Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transm

7、ission lines (IEC 62271-112:2013) Appareillage haute tension - Partie 112: Sectionneurs de terre rapides courant alternatif pour lextinction de larc secondaire sur les lignes de transport (CEI 62271-112:2013) Hochspannungs-Schaltgerte und -Schaltanlagen - Teil 112: Schnellschaltende Wechselstrom-Erd

8、ungsschalter zum Lschen von sekundren Lichtbgen auf Freileitungen (IEC 62271-112:2013) This European Standard was approved by CENELEC on 2013-09-10. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat

9、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

10、, 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

11、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

12、den, Switzerland, Turkey and the United Kingdom. BS EN 62271-112:2013EN 62271-112:2013 - 2 - Foreword The text of document 17A/1042/FDIS, future edition 1 of IEC 62271-112, prepared by subcommittee 17A, High-voltage switchgear and controlgear, of IEC/TC 17, “Switchgear and controlgear“ was submitted

13、 to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62271-112:2013. 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) 2014-06-10 latest date by which the nation

14、al standards conflicting with the document have to be withdrawn (dow) 2016-09-10 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 any or all such patent rights. Endor

15、sement notice The text of the International Standard IEC 62271-112:2013 was approved by CENELEC as a European Standard without any modification. BS EN 62271-112:2013- 3 - EN 62271-112:2013 Annex ZA (normative) Normative references to international publications with their corresponding European publi

16、cations 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 amendments) applies.

17、 NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 62271-1 2007 High-voltage switchgear and controlgear - Part 1: Common specifications EN 62271-1 2008 IEC 62271-100 2008 High-voltag

18、e switchgear and controlgear - Part 100: Alternating current circuit-breakers EN 62271-100 2009 IEC 62271-102 + corr. April + corr. February + corr. May 2001 2002 2005 2003 High-voltage switchgear and controlgear - Part 102: Alternating current disconnectors and earthing switches EN 62271-102 + corr

19、. July + corr. March 2002 2008 2005 IEC 62271-203 + corr. July 2011 2013 High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV EN 62271-203 2012 BS EN 62271-112:2013 2 62271-112 IEC:2013 CONTENTS 1 General 6 1.1 Scope 6 1.2 Normati

20、ve references 6 2 Normal and special service conditions 6 3 Terms and definitions . 6 3.1 General terms . 6 3.2 Assemblies of switchgear and controlgear . 8 3.3 Parts of assemblies . 8 3.4 Switching devices 8 3.5 Parts of switchgear and controlgear 8 3.6 Operation 8 3.7 Characteristics quantities 8

21、4 Ratings . 8 5 Design and construction . 10 6 Type tests 11 7 Routine tests 14 8 Guide to the selection of HSES 14 9 Information to be given with enquiries, tenders and orders . 14 10 Rules for transport, storage, installation, operation and maintenance . 15 11 Safety . 15 Annex A (informative) Bac

22、kground information on the use of HSES . 16 Annex B (informative) Induced current and voltage conditions for other cases . 21 Figure 1 Explanation of a multi-phase auto-reclosing scheme 7 Figure 2 Timing chart of HSES and circuit-breakers . 9 Figure A.1 Single-line diagram of a power system 17 Figur

23、e A.2 Timing chart of the HSESs in relation to the transmission line circuit-breakers . 17 Figure A.3 Typical timing chart showing the time between fault initiation and a successful re-close of the transmission line circuit-breakers . 18 Figure B.1 System condition to explain successive fault . 22 F

24、igure B.2 Example of waveforms of delayed current zero phenomena 22 Figure B.3 Typical test circuit for electromagnetic coupling test-duty of a HSES with delayed current zero crossings . 24 Figure B.4 Typical test circuit for electrostatic coupling test-duty of HSES with delayed current zero crossin

25、gs . 24 Table 1 Standardized values of rated induced currents and voltages . 10 Table 2 Items to be listed on nameplate of a HSES 11 Table A.1 Comparison of earthing switches 19 Table A.2 Comparison of a four-legged reactor and HSES . 20 Table B.1 Preferred values for single-phase earth fault with d

26、elayed current zero phenomena in the presence of a successive fault . 23 BS EN 62271-112:201362271-112 IEC:2013 3 Table B.2 Preferred values for multi-phase earth faults in a double-circuit system . 25 Table B.3 Preferred values for covering the cases of categories 0 and 1 25 BS EN 62271-112:2013 6

27、62271-112 IEC:2013 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission lines 1 General 1.1 Scope This part of IEC 62271 applies to a.c. high-speed earthing switches designed for indoor and outdoor installatio

28、n and for operation at service frequencies of 50 Hz and 60 Hz on systems having voltages of 550 kV and above. High-speed earthing switches described in this standard are intended to extinguish the secondary arc remaining after clearing faults on transmission lines by the circuit-breakers. 1.2 Normat

29、ive 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 of the referenced document (including any amendments) a

30、pplies. IEC 62271-1:2007, High-voltage switchgear and controlgear Part 1: Common specifications IEC 62271-100:2008, High-voltage switchgear and controlgear Part 100: Alternating-current circuit-breakers IEC 62271-102:2001, High-voltage switchgear and controlgear Part 102: Alternating current disconn

31、ectors and earthing switches IEC 62271-203:2011, High-voltage switchgear and controlgear Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV 2 Normal and special service conditions Clause 2 of IEC 62271-1:2007 is applicable. 3 Terms and definitions For the purposes of th

32、is document, the terms and definitions given in Clause 3 of IEC 62271-1:2011, as well as the following apply. 3.1 General terms 3.1.101 secondary arc arc that remains at the faulted point after interruption of the short-circuit current fed by the network Note 1 to entry: This secondary arc is suppli

33、ed by electrostatic or electromagnetic induction from the adjacent healthy phases. BS EN 62271-112:201362271-112 IEC:2013 7 3.1.102 single-phase auto-reclosing scheme auto-reclosing scheme in which a faulted phase circuit is opened and automatically re-closed independently from the other phases 3.1.

34、103 multi-phase auto-reclosing scheme auto-reclosing scheme applied to double circuit overhead lines in which all faulted phase circuits are opened and re-closed independently provided that at least two different phases remain un-faulted Note 1 to entry: An example of multi-phase auto-reclosing sche

35、me is indicated in Figure 1. ABCLine 1Line 2Line 1Line 2Line 1Line 21)2)3)abcabcabcABCABCKey 1) Up to 4 phases have a fault Closed circuit-breaker 2) Only the faulted phases have been tripped Open circuit-breaker 3) All circuit-breakers at both ends re-closed Re-closed circuit-breaker Figure 1 Expla

36、nation of a multi-phase auto-reclosing scheme IEC 1895/13 BS EN 62271-112:2013 8 62271-112 IEC:2013 Note 2 to entry: Other than the scheme described in 3.1.102 and 3.1.103, a three-phase auto-reclosing scheme is commonly applied. In this scheme, all three phases are tripped and re-closed at both end

37、s even if a fault occurred in one phase. So far high-speed earthing switches are rarely applied with this scheme. 3.1.104 successive fault additional earth fault that occurs in the adjacent phase circuit(s) during the time interval between a single-phase earth fault and the opening of the high-speed

38、 earthing switch(es) 3.2 Assemblies of switchgear and controlgear No particular definitions. 3.3 Parts of assemblies No particular definitions. 3.4 Switching devices 3.4.101 high-speed earthing switch HSES earthing switch that has the capability to: make, carry and interrupt the induced current; wit

39、hstand the recovery voltage caused by electromagnetic and/or by electrostatic couplings prior to circuit re-closure; make and carry the rated short-circuit current Note 1 to entry: The high-speed operation applies normally to both closing and opening. Note 2 to entry: A high-speed earthing switch is

40、 not intended to be used as a maintenance earthing switch. 3.4.103.1 high-speed earthing switch class M0 high-speed earthing switch having a normal mechanical endurance of 1 000 operation cycles 3.4.103.2 high-speed earthing switch class M1 high-speed earthing switch having an extended mechanical en

41、durance of 2 000 operation cycles for special requirements 3.5 Parts of switchgear and controlgear No particular definitions. 3.6 Operation No particular definitions. 3.7 Characteristics quantities No particular definitions. 4 Ratings Clause 4 of IEC 62271-1:2007 is applicable with the following add

42、itions. BS EN 62271-112:201362271-112 IEC:2013 9 4.4 Rated normal current and temperature rise Subclause 4.4 of IEC 62271-1:2007 is not applicable. 4.101 Rated short-circuit making current Subclause 4.101 of IEC 62271-102:2001 is applicable. 4.102 Rated operating sequence The rated characteristics o

43、f the HSES are referred to the rated operating sequence. a) C ti1 O or b) C ti1 O ti2 C ti1 O where ti1is a time that is longer than the time required for secondary arc extinction and for dielectric recovery of air insulation at the faulted point. ti1is determined by users considering system stabili

44、ty. The preferred value of ti1is 0,15 s; ti2is the intermediate time that is given by the system protection. ti2includes the closing time of the circuit-breakers after the HSESs open, the duration of a new line fault and the breaking time of the circuit-breakers. Following this ti2time, the HSES can

45、 be reclosed. The preferred value of ti2is 0,5 s; In this case the HSES shall be able to operate without intentional time delay. Figure 2 shows the time chart for the rated operating sequence of C ti1 O ti2 C ti1 O. Circuit-breakerHSESClosedOpenOpenClosed1 2 3 4 5 6Current flow in HSEStime1 3 4 5Cur

46、rent flow in HSESti1 ti2 ti17 6Key Circuit-breaker Transmission line circuit-breakers that interrupt the fault 3 Contact touch of HSESs HSES High-speed earthing switches 4 Energizing of the opening release of the HSESs 1 Energizing of the closing circuit of the HSESs 5 Contact separation of HSESs 2

47、Current start in HSESs 6 Arc extinction in HSESs ti1, ti2Times defined in 4.102 7 Fully open position of HSESs NOTE 1 A common value for the re-closing time of the circuit-breaker is 1 s to guarantee system stability. NOTE 2 ti1is normally within the range of 0,15 s to 0,5 s. NOTE 3 ti2is normally w

48、ithin the range of 0,5 s to 1 s. NOTE 4 The operating sequence b) is for system stability requirements to cover cases where another fault occurs on the same phase. NOTE 5 The HSES closing time is normally less than 0,2 s Figure 2 Timing chart of HSES and circuit-breakers IEC 1896/13 BS EN 62271-112:

49、2013 10 62271-112 IEC:2013 4.103 Standard values for interruption Standard values for HSES are given in Table 1. Table 1 Standardized values of rated induced currents and voltages Rated voltage UrElectromagnetic coupling Electrostatic coupling Rated induced current ( %100-+) Rated power frequency recovery voltage ( %100-+) First TRV peak (%100-+) Time to first peak ( %100-+) Rated induced current ( %100-+) Rated induced voltage ( %100-+) k