BS-EN-60044-6-1999 IEC-60044-6-1992.pdf
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1、BRITISH STANDARD BS EN 60044-6:1999 IEC 60044-6:1992 Instrument transformers Part 6: Requirements for protective current transformers for transient performance The European Standard EN 60044-6:1999 has the status of a British Standard ICS 17.220.20 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov
2、 09 04:14:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60044-6:1999 This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 August 1999 BSI 03-2000 ISBN 0
3、 580 32232 7 National foreword This British Standard is the English language version of EN 60044-6:1999. It was derived by CENELEC from IEC 60044-6:1992. The CENELEC common modifications have been implemented at the appropriate places in the text and are indicated by a side line in the margin. The U
4、K participation in its preparation was entrusted to Technical Committee PEL/38, Instrument transformers, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK
5、interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For i
6、nstance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex w
7、hich lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Corresponde
8、nce Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. 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 Standard does not of i
9、tself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 32, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorp
10、orated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60044-6:1999 BSI 03-2000i Contents Page National
11、forewordInside front cover Foreword2 Text of EN 60044-63 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NO
12、RME EUROPENNE EUROPISCHE NORM EN 60044-6 March 1999 ICS 17.220.20 English version Instrument transformers Part 6: Requirements for protective current transformers for transient performance (IEC 60044-6:1992, modified) Transformateurs de mesure Partie 6: Prescriptions concernant les transformateurs d
13、e courant pour protection pour la rponse en rgime transitoire (CEI 60044-6:1992, modifie) Mewandler Teil 6: Anforderungen an Stromwandler fr Schutzzwecke fr transientes bertragungsverhalten (IEC 60044-6:1992, modifiziert) This European Standard was approved by CENELEC on 1999-01-01. CENELEC members
14、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 alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application t
15、o 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 translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has t
16、he same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN
17、ELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1999 CENELEC All rights of exploitation in any form and by any means reserved worldwi
18、de for CENELEC members. Ref. No. EN 60044-6:1999 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60044-6:1999 BSI 03-2000 2 Foreword The text of the International Standard IEC 60044-6:1992, prepared by IEC TC 38, Instrument transformers
19、, together with common modifications prepared by, the Technical Committee CENELEC TC 38X, Instrument transformers was submitted to the formal vote and was approved by CENELEC as EN 60044-6 on 1999-01-01. The following dates were fixed: This part 6 of EN 60044 is to be used in conjunction with IEC 60
20、044-1:1996. Annexes designated “normative” are part of the body of the standard. In this standard, Annex A, Annex B, Annex C, Annex D, Annex E and Annex ZA are normative. Annex ZA has been added by CENELEC. Contents Page Foreword2 Introduction3 1Scope3 2Normative references3 3Definitions3 4Ratings a
21、nd performance requirements7 5Methods of specification8 6Marking of rating plate8 7Tests9 Annex A Basic theoretical equations for transient dimensioning13 Annex B Determination of core magnetization characteristic13 Annex C Direct tests21 Annex D Guide to performance criteria for current transformer
22、 for protection relaying26 Annex E Determination of turns ratio error30 Annex ZA (normative) Normative references to international publications with their corresponding European publicationsInside back cover Page Figure B.1 Basic circuit17 Figure B.2 Determination of remanence factor Kr by hysteresi
23、s loop17 Figure B.3 Basic circuit for d.c. method18 Figure B.4 Typical records18 Figure B.5 Flux measurement by additional winding19 Figure B.6 Circuit for alternative d.c. method19 Figure B.7 Typical record by alternative d.c. method20 Figure B.8 Circuit for capacitor discharge method20 Figure B.9
24、Typical records for capacitor discharge method20 Figure C.1 Current difference test arrangement22 Figure C.2 Voltage difference method23 Figure C.3 Oscillograms24 Figure C.4 Oscillograms25 Figure E.1 Simplified equivalent circuit for a current transformer31 Figure E.2 Simplified equivalent circuit f
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