BS 7578-1992 Coupling capacitors and capacitor dividers《耦合电容器和电容器分压器》.pdf
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1、BRITISH STANDARD BS 7578:1992 IEC 358:1990 Coupling capacitors and capacitor dividers (Implementation of CENELEC HD 597 S1)BS7578:1992 This British Standard, having been prepared under the directionof the Power Electrical Engineering Standards Policy Committee, was published underthe authority of th
2、e Standards Board and comes intoeffect on 15 June 1992 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference PEL/46 Draft for comment 83/22801 DC ISBN 0 580 20846 X Committees responsible for this British Standard The preparation of this British Standard w
3、as entrusted by the Power Electrical Engineering Standards Policy Committee (PEL/-) to Technical Committee PEL/46, upon which the following bodies were represented: Association of Consulting Engineers British (AC) Capacitor Manufacturers Association (BEAMA Ltd.) ERA Technology Ltd. Electricity Assoc
4、iation Rotating Electrical Machines Association (BEAMA Ltd.) Amendments issued since publication Amd. No. Date CommentsBS7578:1992 BSI 09-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of HD 597 S1 5 National annex NA (informative) Cross-reference
5、s Inside back coverBS7578:1992 ii BSI 09-1999 National foreword This British Standard has been prepared under the direction of the Power Electrical Engineering Standards Policy Committee. It is identical with IEC358:1990 Coupling capacitors and capacitor dividers published by the International Elect
6、rotechnical Commission (IEC). This British Standard implements CENELEC Harmonization Document HD597S1. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standa
7、rd does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theHD title page, pages2 to28, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amen
8、dments incorporated. This will be indicated in the amendment table on the inside front cover.HARMONIZATION DOCUMENT DOCUMENT DHARMONISATION HARMONISIERUNGSDOKUMENT HD 597 S1 January 1992 UDC 621.319.4:620.1 Incorporates Corrigendum March 1992 Descriptors: Power capacitor, coupling capacitor, capacit
9、or voltage divider, test English version Coupling capacitors and capacitor dividers (IEC 358:1990) Condensateurs de couplage et diviseurs capacitifs (CEI 358:1990) Kopplungskondensatoren und kapazitive Teiler (IEC 358:1990) This Harmonization Document was approved by CENELEC on 1991-12-10. CENELEC m
10、embers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Document on a national level. Up-to-date lists and bibliographical references concerning national implementation may be obtained on application to the Central
11、Secretariat or to any CENELEC member. This Harmonization Document exists in three official versions (English, French, German). CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands
12、, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1992 Copyright
13、reserved to CENELEC members Ref. No. HD 597 S1:1992 EBS7578:1992 2 BSI 09-1999 Foreword The CENELEC questionnaire procedure, performed for finding out whether or not the International Standard IEC 358:1990 could be accepted without textual changes, has shown that no CENELEC common modifications were
14、 necessary for the acceptance as Harmonization Document. The reference document was submitted to theCENELEC members for formal vote and wasapproved by CENELEC as HD597 S1 on10December1991. The following dates were fixed: For products which have complied with the relevant national standard before1992
15、-12-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until1997-12-01. Annexes designated “normative” are part of the body of the standard. In this standard,Annex ZA is normative. Contents Page Foreword 2 Section 1. General 1 Sco
16、pe 5 2 Object 5 3 Definitions 5 4 Service conditions 8 Section 2. Quality requirements and tests 5 Test requirements 9 6 Classification of tests 9 7 Capacitance measurement at power frequency 10 8 Capacitor loss measurement 11 9 Voltage tests 11 10 Voltage test between low voltage terminal and earth
17、 terminal 13 11 Discharge test 13 12 High frequency measurements (only for coupling capacitors and capacitor dividers intended for carrier coupling) 14 13 Partial discharge test 14 14 Determination of the temperature coefficient 16 15 Sealing test 16 16 Cantilever test 16 Section 3. Insulation level
18、s and creepage distance 17 Insulation levels and test voltages 17 18 Creepage distance 18 Section 4. Safety requirements 19 Connections to metal parts 19 20 Protection of the environment 19 21 National regulations 19 Section 5. Markings 22 Marking of the capacitor unit 19 23 Marking of the capacitor
19、 stack 19 Section 6. Guide for installation and operation 24 General 20 25 Choice of rated voltage 20 26 Choice of insulation level 20 27 Operating temperature 21 28 Special conditions 21 29 Mechanical stress 22 latest date of announcement of the HD atnational level (doa) 1992-06-01 latest date of p
20、ublication ofa harmonized national standard (dop) 1992-12-01 latest date of withdrawal ofconflicting national standards (dow) 1992-12-01BS7578:1992 BSI 09-1999 3 Page Appendix A Capacitor diagrams 23 Appendix B High frequency characteristics ofcoupling capacitors for power line carrier circuits 24 A
21、nnex ZA (normative) Other international publications quoted in this standard with thereferences of the relevant European publications 28 Figure A.1 Capacitor for overvoltage protection 23 Figure A.2 Capacitor for power line carrier coupling 23 Figure A.3 Capacitor divider (part of capacitorvoltage t
22、ransformer, not used for connection for power line carrier coupling) 23 Figure A.4 Capacitor divider (part of capacitorvoltage transformer, with connection forpower linecarrier coupling) 24 Figure B.1 Bridge method for measuring the high frequency capacitance and equivalent series resistance of a co
23、upling capacitor 26 Figure B.2 Wiring diagram of the measuringcircuit for the high frequency capacitance and equivalent series resistanceofacoupling capacitor 27 Table I 9 Table II 15 Table III Standard insulation levels for12kVk U m 300kV 17 Table IV Standard insulation levels for U m U 300 kV 184
24、blankBS7578:1992 BSI 09-1999 5 Section 1. General 1 Scope This standard is applicable to: a) coupling capacitors for power line carrier (PLC) systems on high voltage overhead power lines, the power-frequency range being15Hz to60Hz, and the carrier frequency range30kHz to500kHz; b) capacitor dividers
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