1、BRITISH STANDARD BS EN 62199:2004 Bushings for d.c. application The European Standard EN 62199:2004 has the status of a British Standard ICS 29.080.20 BS EN 62199:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 3 August 2004 BSI 3 August
2、 2004 ISBN 0 580 44182 2 National foreword This British Standard is the official English language version of EN 62199:2004. It is identical with IEC 62199:2004. The UK participation in its preparation was entrusted by Technical Committee PEL/36, Insulators for power systems, to Subcommittee PEL/36/1
3、, Bushing insulators, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the
4、BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible fo
5、r its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK int
6、erests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 25 and a back cover. The BSI copyright notice displayed in this document indicates when
7、 the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 62199 NORME EUROPENNE EUROPISCHE NORM July 2004 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektro
8、technische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62199:2004 E ICS 29.080.20 English version Bushings for d.c. application (IEC 62199:2004) Traverses
9、 pour application en courant continu (CEI 62199:2004) Durchfhrungen fr Gleichspannungsanwendungen (IEC 62199:2004) This European Standard was approved by CENELEC on 2004-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving thi
10、s 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 Secretariat or to any CENELEC member. This European Standard exists in three official version
11、s (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 the official versions. CENELEC members are the national electrotechnical committees of Au
12、stria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Foreword The text of document
13、36A/117/FDIS, future edition 1 of IEC 62199, prepared by SC 36A, Insulated bushings, of IEC TC 36, Insulators, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62199 on 2004-07-01. The following dates were fixed: latest date by which the EN has to be implemented at na
14、tional level by publication of an identical national standard or by endorsement (dop) 2005-04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2007-07-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard I
15、EC 62199:2004 was approved by CENELEC as a European Standard without any modification. _ Page2 EN62199:2004 CONTENT INTRODUCTION5 1 Scope6 2 Normative references.6 3 Terms and definitions 7 4 Ratings7 4.1 Rated voltages .7 4.2 Insulation levels7 4.3 Rated currents8 4.4 Minimum nominal creepage dista
16、nce 8 5 Operating conditions9 5.1 General 9 5.2 Factors affecting the design, testing and application9 6 General requirements .10 6.1 List of variables .10 6.2 Nameplate markings10 7 Test requirements.11 7.1 General requirements 11 7.2 Test classification11 8 Type tests.12 8.1 Dry power-frequency vo
17、ltage withstand test with partial discharge measurement 12 8.2 Dry lightning impulse voltage withstand test (BIL).13 8.3 Dry or wet switching impulse voltage withstand test (SIL) .13 8.4 Temperature rise test 14 8.5 Cantilever load withstand test 14 8.6 Tightness test on liquid-filled, compound-fill
18、ed and liquid-insulated bushings15 8.7 Internal pressure test on gas-filled, gas-insulated and gas-impregnated bushings16 8.8 Verification of dimensions16 9 Routine tests 16 9.1 Measurement of dielectric dissipation factor (tan ) and capacitances 16 9.2 Dry lightning impulse voltage withstand test (
19、BIL).16 9.3 Dry power-frequency voltage withstand test with partial discharge measurement 16 9.4 DC applied voltage withstand test with partial discharge measurement.17 9.5 Polarity reversal test with partial discharge measurement.19 9.6 Test of tap insulation .20 9.7 Internal pressure test on gas-f
20、illed, gas-insulated and gas-impregnated bushings20 9.8 Tightness test on liquid-filled, compound-filled and liquid-insulated bushings21 9.9 Tightness test on gas-filled, gas-insulated and gas-impregnated bushings21 Page3 EN62199:2004 9.10 Tightness test at the flange or other fixing device.21 9.11
21、Visual inspection and dimensional check21 10 Special tests.21 10.1 Artificial pollution test.21 10.2 Even wetting d.c. voltage test.22 10.3 Uneven wetting d.c. voltage test.22 Bibliography24 rugiFraloP 1 eiyt reversset larp tfoeli 93 TminiM 1 elbamu seulav fo crevelitna wishttdaol dna 13 Page4 EN621
22、99:200401.9 Tisenthgs setf eht ta tlro egna rehto fixicived gne.34 11.9 siVsni laucepmid dna noitsnec lanoicehk34 cepS 01lai setst.3 1.01 rAfiticiset noitullop lat.34 2.01 w nevEec.d gnittset egatlov t1 3.01 w nevenUec.d gnittset egatlov .t.54 rgoilbiByhpa94 rugiFraloP 1 eiyt reversset larp tfoeli 9
23、3 TminiM 1 elbamu seulav fo crevelitna wishttdaol dna 13 4egaP 4002:99126NE Annex ZA (normative) Normative references to international publications with their corresponding European publications . 2501.9 Tisenthgs setf eht ta tlro egna rehto fixicived gne.34 11.9 siVsni laucepmid dna noitsnec lanoic
24、ehk34 cepS 01lai setst.34 1.01 rAfiticiset noitullop lat.34 2.01 w nevEec.d gnittset egatlov t54 3.01 w nevenUec.d gnittset egatlov .t.54 rgoilbiByhpa94 Figure 1 Polarity reversal test profile 39 Table 1 Minimum values of cantilever withstand load 31 4egaP 4002:99126NE9.10 Tightness test at the flan
25、ge or other fixing device.43 9.11 Visual inspection and dimensional check43 10 Special tests.43 10.1 Artificial pollution test.43 10.2 Even wetting d.c. voltage test.45 10.3 Uneven wetting d.c. voltage test.45 Bibliography49 Figure 1 Polarity reversal test profile 19 Table 1 Minimum values of cantil
26、ever withstand load 15 Page4 EN62199:2004 nnAex ZA (nroma)evit roNmevita refercnese ot tniertannoial bupcilatoisn wit htrieh corresdnopiuE gnroepap nublicatsnoi . 76 INTRODUCTION In this first edition of IEC 62199, service experiences as well as established market require- ments have been harmonized
27、 with existing IEC standards, primarily: IEC 60137, “Insulated bushings for alternating voltages above 1 000 V”. Where applicable, reference is also made to the following standards: IEC 61462, “Composite insulators Hollow insulators for use in outdoor and indoor electrical equipment“ and IEC 62155,
28、“Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1 000 V“. The amount of type tests and routine tests has been carefully planned, considering that HVDC (high voltage direct current) power transmission is a mature tech
29、nology, but still with limited service experience compared to AC systems. Non-ceramic bushing insulators are widely used in d.c. applications and this standard applies to similar qualification procedures on all types of insulators, except for the artificial pollution test. Preparation of a bushing f
30、or an artificial pollution test destroys the surface of a composite insulator and therefore cannot be performed on such bushings. Page5 EN62199:2004 BUSHINGS FOR DC APPLICATION 1 Scope This International Standard applies to outdoor and indoor bushings of any voltage used on d.c. systems, of capacita
31、nce graded or gas insulated types for use as components of oil-filled converter transformers and smoothing reactors, as well as air-to-air d.c. bushings. This standard does not apply to the following: cable terminations (potheads); bushings for instrument transformers; bushings for test transformers
32、; bushings applied with gaseous insulation (other than air at atmospheric pressure) external to the bushing; bushings for industrial application; bushings for traction application. This standard makes reference to IEC 60137 for general terms and conditions and defines the special terms used, operati
33、ng conditions, ratings, test procedures as well as general mechanical and electrical requirements for bushings for d.c. application. Where applicable, reference can also be made to IEC 61462 for composite insulators hollow insulators for use in outdoor and indoor electrical equipment and to IEC 6215
34、5 for hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1 000 V. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition c
35、ited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050(471):1984, International Electrotechnical Vocabulary (IEV) Chapter 471: Insulators IEC 60060-1:1989, High-voltage test techniques Part 1: General definitions and test req
36、uirements IEC 60071-1:1993, Insulation co-ordination Part 1: Definitions, principles and rules IEC 60137:2003, Insulated bushings for alternating voltages above 1000 V IEC 60270:2000, High-voltage test techniques Partial discharge measurements IEC 61245:1993, Artificial pollution tests on high-volta
37、ge insulators to be used on d.c. systems Page6 EN62199:2004 IEC 61462:1998, Composite insulators Hollow insulators for use in outdoor and indoor electrical equipment Definitions, test methods, acceptance criteria and design recom- mendations IEC 62155:2003, Hollow pressurized and unpressurized ceram
38、ic and glass insulators for use in electrical equipment with rated voltages greater than 1 000 V 3 Terms and definitions For the purposes of this document, the terms and definitions of IEC 60137 and IEC 60050(471) apply. Where applicable, reference is also made to IEC 61462 and to IEC 62155. 3.1 wal
39、l (roof) bushing bushing intended to be mounted on the wall (roof) of a building such as a converter valve hall 3.2 bushing for combined voltage application d.c. bushing subject to a large a.c. voltage superimposed on a d.c. bias voltage, such as a bushing applied to the valve winding side of a conv
40、erter transformer 3.3 bushing for pure d.c. application d.c. bushing subject to a d.c. voltage with only a small a.c. voltage ripple, such as applied on the high voltage side of a d.c. converter valve 4 Ratings 4.1 Rated voltages 4.1.1 Rated continuous d.c. voltage The rated continuous d.c. voltage
41、is the maximum continuous d.c. voltage assigned to the bushing by the manufacturer for specified operating conditions. 4.1.2 Rated peak voltage The rated peak voltage is the maximum value of the combination of d.c. voltage plus peak a.c. voltage that the bushing is required to withstand under the sp
42、ecified operating conditions. 4.2 Insulation levels The insulation levels for bushings used in d.c. applications do not generally follow the standard values of insulation level in accordance with IEC 60071-1. The purchaser shall specify the insulation levels. The methods of calculation for test volt
43、ages are given in the relevant clauses of this standard. Page7 EN62199:2004 4.3 Rated currents The definition of rated current depends on the bushing application. If the bushing is one for pure d.c. application, the ratings are defined in 4.3.1. If the bushing is one for combined voltage application
44、, the ratings are defined in 4.3.2. 4.3.1 Pure d.c. applications 4.3.1.1 Rated continuous d.c. current The rated continuous d.c. current is the maximum continuous direct current that the bushing is required to carry under the specified operating conditions. 4.3.1.2 Rated d.c. overload current The ra
45、ted d.c. overload current is the maximum direct current that the bushing is required to carry for a stated duration of time and ambient temperature. The purchaser shall specify the current magnitude, duration and frequency of occurrence. 4.3.2 Combined voltage applications In these applications, the
46、 bushing is usually required to carry a.c. current. 4.3.2.1 Rated continuous a.c. current The rated continuous a.c. current is the r.m.s. equivalent of the actual current wave shape that the bushing is required to carry based on the d.c. rated load current committed with zero committing angle. 4.3.2
47、.2 Rated a.c. overload current The rated a.c. overload current is the maximum alternating current that the bushing is required to carry for a stated duration of time and ambient temperature. It shall be the r.m.s. equivalent of the actual current waveshape that the bushing is required to carry based
48、 on the d.c. rated overload current commutated with zero commutating angle. 4.4 Minimum nominal creepage distance The purchaser shall specify the specific creepage distance or, alternatively, the degree of pollution severity. This creepage distance may be determined by: d cs U 1 k dwhere d csis the
49、minimum nominal specific creepage distance (mm/kV); U 1is the rated continuous d.c. voltage or the rated peak voltage depending on the point of application of the bushing in the electrical scheme (kV); k dis the correction factor depending on the average diameter of the bushing. For indoor bushings, the minimum nominal creepage distance value shall be 17 mm/kV. Page8 EN62199:2004 If artificial pollution tests are requi
