1、 STD.BSI BS EN 60044-7-ENGL 2000 1624669 O847383 T81 BRITISH STANDARD Instrument transformers - Part 7: Electronic voltage transformers The European Standard EN 60044-7:2000 has the status of a British Standard ICs 17.220.20 BS EN 60044- 7:ZOOO EC 60044-7:1999 NO COPYING WTHOLT ES1 PERMISSION EXCEPT
2、 AS PERMIRED BY COPYRIGHT LAW STD.BS1 BS EN b0044-7-ENGL 2000 m II624669 0847384 7LB m National foreword This British Standard is the official English language version of EN 60044-72000. It is identical with IEC 60044-7: 1999. The UK participation in its preparation was entrusted to Technical Commit
3、tee PEUB, Instrument tsansfonners, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible European committee any enquiries on the - monitor related international and European developments and promulgate A Iist of organizations represented on this commit
4、tee can be obtained on request to its secretary. The UK National Committee voted against publication of this standard and submitted a list of objections. In general, the standard does not include the detail and content of the equivaient standard, for current transformers which is in preparation in I
5、EC. Items to which objections were raised included the following: interpretation, or proposals for change, and keep the UK interests informed them in the UK The term “li-ansformers” in the title was felt to be inappropriate and the term “Transducers” was recommended in its place. The properties of t
6、he inherent wide bandwidth of some nonconventional sensors are ignored. Insufficient attention is given to the effects of vibration on sensors, for example those which are instailed as intrgral parts of switchgear. Digital outputs are not standardized. Temperature rise test acceptance and modality a
7、re not detailed. This British Standard, having been prepared under the direction of the Electrotechica1 Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 2000 O BSI 05-2000 ISBN O 580 34336 7 From 1 January 1997, all IEC publications have
8、the number 60000 added to the old nmbeL For -hstnce,-IC-Z%l hasbeen 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 CENE
9、LEC standards normally include an annex which lists normative references to internationai 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 enti
10、tled “International Standards Correspondence 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. Complia
11、nce with a British Standard does not of itself confer immunity from legai- obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 72, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicate
12、s when the document was last issued. Amendments issued since publication I Comments I Amd. No. STD-BSI BS EN 60044-7-ENGL 2000 I Lb24bb9 0847385 854 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60044-7 January 2000 ICs 17.220.20 English version Instrument transformers Part 7: Electronic volt
13、age transformers (IEC 60044-7: 1 999) Transformateurs de mesure Partie 7: Transformateurs de tension lectroniques (CE1 60044-711 999) Mewandler Teil 7: Elektronische Spannungswandler (IEC 60044-7: 1 999) This European Standard was approved by CENELEC on 1999-1 2-01. CENELEC members are bound to comp
14、ly with the CENICENELEC 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 to the Central Sec
15、retariat 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 the same status as
16、 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. CENELEC European Com
17、mittee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels o 2000 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENE
18、LEC members. Ref. No. EN 60044-72000 E STD-BSI BS EN 60044-7-ENGL 2000 H Lb24bb9 08473b 790 Page 2 EN 60044-7:2000 Foreword The text of document 38/242/FDIS, future edition 1 of IEC 60044-7, prepared by IEC TC 38, instrument transformers, was submitted to the IEC-CENELEC parallel vote and was approv
19、ed by CENELEC as EN 60044-7 on 1999-1 2-01. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2000-1 0-01 - latest date by which the national standards conflicting with the EN
20、 have to be withdrawn (daw) 2002-1 2-0 1 Annexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are given for information only. In this standard, annexes A and ZA are normative and annexes B and C are informative. Annex ZA has been added by CENELEC. End
21、orsement notice The text of the International Standard IEC 60044-7:1999 was approved by CENELEC as a European Standard without any modification. STD-BSI BS EN b0044-7-ENGL 2000 W 1624bb 0847387 627 m 1 2 3 4 5 6 7 Page 3 EN 60044-7:2000 CONTENTS Page Clause 7.3 Special tests . 33 General . 5 1.1 Sco
22、pe . 5 1.2 Normative references 5 1.3 General block diagram of electronic voltage transformers 7 Definitions . 8 2.1 General definitions 8 2.2 Additional definitions for single-phase electronic protective voltage transformers . 14 2.3 Index of symbols . 14 General requirements 15 3.1 General 15 3.2
23、Information to be given for enquiries, tenders and orders . 16 Normal and special service conditions 16 4.1 Normal service conditions . 16 4.2 Special service conditions . 18 4.3 Earthing system 19 Ratings 19 5.1 5.2 5.3 5.4 5.5 Standard values of rated voltages . 19 Standard values of rated output
24、. 20 Standard values of rated voltage factor . 20 Standard values of rated auxiliary power supply voltage 21 Standard reference values of other influencing parameters 21 6.1 Insulation requirements for primary voltage sensor 22 6.2 Insulation requirements for low-voltage components 26 6.3 Short-circ
25、uit withstand capability . 27 6.4 Limits of temperature rise 27 6.5 Radio interference voltage requirements 27 6.6 Transmitted overvoltage requirements . 28 6.7 Electromagnetic compatibility requirements . 28 6.8 Reliability 30 6.9 6.10 Abnormal conditions signalling 31 6.1 1 Mechanical requirements
26、 31 6.12 Earthing terminals . 32 7.1 Type tests . 32 7.2 Routine tests 33 Design requirements 22 Abnormal conditions withstand capability . 31 Classification of tests . 32 Q BSI 05-2000 STD=BSI BS EN b0044-7-ENGL 2000 = LbZ4bb7 0847388 563 Page 4 EN 60044-72000 Clause Page 8 Type tests 33 Impulse te
27、st on primary voltage terminals 33 Tests for accuracy 35 Radio interference voltage test 37 Electromagnetic compatibility tests 37 Transient performance tests 41 9.1 Verification of terminal markings . 41 9.2 Power-frequency withstand tests on primary voltage terminals 9.3 Power-frequency voltage wi
28、thstand test for low-voltage components 43 9.4 Tests for accuracy 44 10 Special tests 44 10.1 Chopped lightning-impulse test on primary voltage terminals . 44 10.2 Measurement of capacitance and dielectric dissipation factor . 45 10.3 Mechanical strength tests 45 11 Markings 46 11 . 1 Rating plate m
29、arkings . 46 11.2 Terminal markings 48 12 Accuracy requirements for single-phase electronic measuring voltage transformers 48 12.1 General requirements . 48 12.3 Accuracy class designation for electronic measuring voltage transformers . 49 12.4 12.5 Limits of voltage error and phase displacement for
30、 electronic measuring 13 Additional requirements for single-phase electronic protective voltage transformers 50 13.1 General requirements . 50 13.2 Maintenance requirements 51 13.3 Accuracy class designation for electronic protective voltage transformers 51 13.4 Standard accuracy classes for electro
31、nic protective voltage transformers . 51 13.5 Limits of voltage error and phase displacement for electronic protective 13.6 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 Wet test for outdoor type electronic voltage transformers . 35 Test for abnormal conditions withstand capability 36 Transmitted overvoltage
32、test . 37 Impulse voltage withstand test for low-voltage components 40 9 Routine tests . 41 and partial discharge measurement . 41 12.2 Maintenance requirement 49 Standard accuracy classes for electronic measuring voltage transformers 49 voltage transformers . 50 volt age transformers . 51 Transient
33、 performance requirements . 52 Annex A (normative) Burdens for the transient response test 53 Annex C (informative) Bibliography . 69 Annex ZA (normative) Normative references to international publications with their corresponding European publications . 70 Annex B (informative) Technical informatio
34、n for electronic voltage transformers 55 C BSI 05-2000 STD.BS1 BS EN b0044-7-ENGL 2000 II lb24bb7 0847387 4TT Page 5 EN 60044-7:2000 INSTRUMENT TRANSFORMERS - Part 7: Electronic voltage transformers I General 1.1 Scope This part of International Standard IEC 60044 applies to newly manufactured elect
35、ronic voltage transformers with analogue output, for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 1 O0 Hz. NOTE 1 Optical arrangements usually include electronic components and are therefore considered to be within the application of this s
36、tandard. NOTE 2 Detailed information is given in annex B. NOTE 3 Requirements specific to three-phase voltage transformers are not included in this standard but, so far as they are relevant, the requirements in clauses 3 to 11 apply to these transformers and a few references to them are included in
37、those clauses (e.g. see 2.1.5, 5.1.1, 5.2, 11.2.1 and 11.2.2). 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60044. For dated references, subsequent amend- ments to, or revisions of, any
38、of these publications do not apply. However, parties to agreements based on this part of IEC 60044 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document refer
39、red to applies. Members of IEC and IS0 maintain registers of currently valid International Standards. IEC 60038: 1983, IEC standard voltages IEC 60044-2: 1997, Instrument transformers - Part 2: Inductive voltage transformers IEC 60050( 161 ):I 990, International Electrotechnical Vocabulary (IEV) - C
40、hapter 767: Electromagnetic compatibility IEC 60050(321): 1986, International Electrotechnical Vocabulary (IEV) - Chapter 327: Instrument transformers IEC 60050(601 ):I 985, Internafional Electrotechnical Vocabulary (IEV) - Chapter 607: Generation, transmission and distribution of electricity - Gene
41、ral IEC 60050(604): 1987, International IectrotechnicaI Vocabulary (IEV) - Chapter 604: Generation, transmission and distribution of electricity - Operation IEC 60060 (all parts), High-voltage techniques IEC 60060-1 : 1989, High-voltage test techniques - Part 7: General definitions and test requirem
42、ents IEC 60071 -1 :1993, Insulation Co-ordination - Pari 7: Definitions, principles and rules O BSI 05-2000 STD.BSI BS EN b0044-7-ENGL 2000 Lb24669 0847390 111 Page 6 EN 60044-7:2000 IEC 60186:1987, Voltage transformers IEC 60255-5:1977, Electrical relays - Part 5: Insulation tests for electrical re
43、lays IEC 60255-6: 1988, Electrical relays - Part 6: Measuring relays and protection equipment IEC 60255-1 1:1979, Electrical relays - Part 1 1: Interruptions to and alternating component (ripple) in d. c. auxiliary energizing quantity of measuring relays IEC 60255-22-1 : 1988, Electrical relays - Pa
44、rt 22: Electrical disturbance tests for measuring relays and protection equipment - Section 1: 1 MHz burst disturbance tests IEC 60270: 1981, Partial discharges measurements IEC 60617-1 :1985, Graphical symbols for diagrams - Part 1: General information, general index. Cross-reference tables IEC 606
45、94: 1 996, Common specifications for high-voltage switchgear and controlgear standards IEC 6072 1 (all parts), Classification of environmental conditions IEC 6081 5:1986, Guide for the selection of insulators in respect of polluted conditions IEC 61 O00 (all parts), Electromagnetic compatibility (EM
46、C) IEC 61 000-4-1 :I 992, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 1: Overview of immunity test. Basic EMC publication IEC 61 000-4-2:1995, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 2: Electrostatic di
47、scharge immunity test. Basic EMC publication IEC 61 000-4-3: 1995, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 3: Radiated, radio-frequency, electromagnetic immunity test IEC 61 000-4-4: 1995, Electromagnetic compatibility (EMC) - Part 4: Testing and me
48、asurement techniques - Section 4: Electrical fast transient/burst immunity test. Basic EMC publication IEC 61 000-4-51995, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 5: Surge immunity test IEC 61000-4-8:1993, Electromagnetic Compatibility (EMC) - Part
49、4: Testing and measurement techniques - Section 8: Power frequency magnetic field immunity test. Basic EMC publication IEC 61 000-4-9:1993, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 9: Pulse magnetic field immunity test. Basic EMC publication IEC 61 000-4-1 0:1993, Electromagnetic compatibility (EMC) - Part 4: Testing and measurement techniques - Section 1 O: Damped oscillatory magnetic field immunity test. Basic EM C publication O BSI 05-2000 Primary voltage Primary sensor converter A* N- Transmitting system Page 7
