1、BRITISH STANDARDBS EN 50329:2003Incorporating corrigendum no. 1Railway applications Fixed installations Traction transformersThe European Standard EN 50329:2003 has the status of a British StandardICS 29.180; 29.280g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g5
2、4g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Tue Apr 24 06:26:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 50329:2003This British Standard was published under the authority of the Standards Polic
3、y and Strategy Committee on 28 July 2003 BSI 2007ISBN 0 580 42341 7National forewordThis British Standard was published by BSI. It is the UK implementation of EN 50329:2003, incorporating corrigendum December 2006. It supersedes BS 7682:1993 which is withdrawn. It also partially supersedes BS EN 601
4、46-1-3:1993 in respect of those aspects that were concerned with railway applications.The start and finish of text introduced or altered by corrigendum is indicated in the text by tags . Text altered by CENELEC corrigendum December 2006 is indicated in the text by .The UK participation in its prepar
5、ation was entrusted by Technical Committee GEL/9, Railway applications, to Subcommittee GEL/9/3, Fixed equipment.A list of organizations represented on GEL/9/3 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users a
6、re responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments16954 Corrigendum No. 128 February 2007 See national forewordLicensed Copy: Wang Bin, na, Tue Apr 24 06:26:13 GMT+00:00
7、 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 50329 NORME EUROPENNE EUROPISCHE NORM March 2003 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart
8、 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50329:2003 E ICS 29.180; 29.280 Supersedes HD 591 S1:1993 and EN 60146-1-3:1993 (partly) English version Railway applications Fixed installations Traction
9、 transformers Applications ferroviaires Installations fixes Transformateurs de traction Bahnanwendungen Ortsfeste Anlagen Bahn-Transformatoren This European Standard was approved by CENELEC on 2002-05-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate t
10、he 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 Secretariat or to any CENELEC member. This European Standard exis
11、ts 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 the official versions. CENELEC members are the national elect
12、rotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. Incorporating corrigendum December 2006Licensed Copy: Wa
13、ng Bin, na, Tue Apr 24 06:26:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 50329:2003 - 2 - Foreword This European Standard was prepared by SC 9XC, Electric supply and earthing systems for public transport equipment and ancillary apparatus (fixed installations), of Technical Committee CENELEC TC 9
14、X, Electrical and electronic applications for railways. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50329 on 2002-05-01. This European Standard supersedes HD 591 S1:1993 and, for the transformers mentioned in the scope of this EN 50329, EN 60146-1-3:1993.
15、 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) 2003-09-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2005-05-01 Annex
16、es designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annexes B and C are normative and Annexes A, D, E and F are informative. _ Licensed Copy: Wang Bin, na, Tue Apr 24 06:26:13 GMT+00:00 2007, Uncontrolled
17、Copy, (c) BSI- 3 - EN 50329:2003 Contents Introduction.4 1 General.5 1.1 Scope5 1.2 Normative references .5 1.3 Definitions .6 1.4 List of symbols 10 1.5 Service conditions.11 2 General requirements for a traction transformer 11 2.1 Loading .11 2.2 Checking of the capability of the transformer to su
18、stain the stipulated load cycle12 2.3 Transferred overvoltages14 2.4 Short circuit stresses.14 2.5 Insulation characteristics and test values .15 2.6 Other peculiar features .15 2.7 Requirements for the simulation test 15 2.8 Rating plate.15 3 Directly-coupled traction transformer 16 3.1 General .16
19、 3.2 Dielectric tests for windings with Um0,9; b) converter transformers with two secondary windings concentrically arranged in sequence at different distances from the primary winding: 0,9 K 0,2; c) converter transformers with two separate secondary windings, each coupled with a section of the prim
20、ary winding or two individual primary windings arranged in stack: K 0,2. An alternative feature consists of the provision of an additional winding, to be connected to the line side of each star connected winding or, in delta windings, between the delta corner and the terminals. These additional wind
21、ings are connectable (with the transformer de-energized) to take into account the voltage drop along the line. NOTE Prescriptions concerning transformers with two primary windings shall be agreed between purchaser and manufacturer It is assumed in EN 60076 and in HD 464 that the traction transformer
22、s are tested in sinusoidal conditions of voltage and current, as applicable in the manufacturers works or in a laboratory (see R009-002). The actual losses however are highly influenced by the harmonic contents of the current, which depends on the characteristics of the converter. To simplify the ma
23、tter the only effect of the typical harmonics of each scheme are considered, without any reference to the voltage harmonics, due to external sources and to those harmonics, of negligible effect however, which appear in the actual operation of a converter. The neutral point of a secondary star windin
24、g feeding a converter shall not be earthed and normally needs not to be brought out. 4.2 Short-circuit impedance and load loss 4.2.1 Total load loss calculation The losses shall be guaranteed at rated service current (see 10.4 of EN 60076-1). On purchasers request, as an alternative, the losses at b
25、asic service current may be guaranteed. The load loss, which appears under normal service conditions, is considered composed of the loss in the winding resistance as measured by d.c. and the additional loss caused by eddy currents, as well as by the stray flux in the windings and in the constructive
26、 parts. The additional stray losses caused by the harmonics depend on the construction of the transformer, on the firing angle and the commutation reactance and may vary in a wide range. The calculation of total load loss of the traction transformer in converter operation (PT) may be obtained throug
27、h alternative methods; the purchaser shall state which method he intends to be applied at the tender invitation stage, otherwise the method will be stated by the manufacturer. In Annex C alternative methods for the calculation of load loss in transformers during converter operation are given. Licens
28、ed Copy: Wang Bin, na, Tue Apr 24 06:26:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI- 19 - EN 50329:2003 4.2.2 Impedance The impedance values shall be measured between each pair of windings and recorded. NOTE For the definition of impedance see 3.7 of EN 60076-1. The mean value obtained from the me
29、asurements between the primary winding and each secondary winding is guaranteed within the tolerances stated in 4.3.1. Other values are subject to be guaranteed with the limits given in 4.3.1, taking into account that, for mathematical reasons, the same tolerance cannot be required on all values and
30、 that, on the other end, the contents of unexpected harmonics is influenced by the unbalance in impedance and ratio between the secondary windings, if more than one winding. In case of additional windings care shall be taken to avoid adverse effect of these windings on the impedance of the secondary
31、 windings. 4.3 Tolerances The tolerances according to clause 9 of EN 60076-1 apply. For traction transformers having two secondary windings the following additional requirements apply. In case two or more converter groups are connected in parallel in the same substation, the note under 5.5 and A.2 o
32、f EN 60076-1 apply. 4.3.1 Tolerances on the impedance voltage Tolerances on the guaranteed impedance voltages shall be as follows: - between the HV and each LV winding: 10 % of the impedance; - maximum deviation of each value measured between the HV and each LV winding from the arithmetic mean value
33、: 1,5 % of the impedance (for transformers under 4.1 a) only); - maximum impedance value between the two LV windings, as measured: 2 % of the impedance (for transformers under 4.1 a) only); - other cases: subject to agreement. 4.3.2 Tolerances on voltage ratios Tolerances on the guaranteed voltage r
34、atios shall be as follows: between the HV and one of the LV windings: 0,5 %; between the HV and the second LV winding: to be agreed between purchaser and manufacturer; between the two above mentioned values as measured: to be agreed between purchaser and manufacturer. NOTE This value is connected to
35、 the maximum feasible number of turns, which can be done taking into account short circuit stresses; the higher is the ratio, the higher may be the tolerance on voltage ratio. By agreement between purchaser and manufacturer tolerances on the ratio between the two low voltage windings may be fixed. 4
36、.3.3 Other tolerances Tolerances stated in EN 60076-1 or HD 464 respectively apply for no-load loss and load loss. Licensed Copy: Wang Bin, na, Tue Apr 24 06:26:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 50329:2003 - 20 - 5 Auxiliary transformers Auxiliary transformers used in traction plants m
37、ay have to be designed taking into account particular requirements as follows: - the short circuit power upstream the transformer is in some cases higher than normal, because these transformers operate often close to supply sources of high power. This fact shall be brought by the purchaser to the at
38、tention of the supplier at the offer stage. The need of verifying short circuit withstand capability shall be considered; - when the auxiliary transformers are subject to loads which cause a high contents of harmonics, this fact shall be brought by the purchaser to attention of the supplier. In such
39、 cases it shall be agreed to follow either provisions of clause 4, or EN 61378-1, or the provisions of HD 428.4 / HD 538.3 (as applicable). 6 Traction auto-transformers 6.1 General These devices are used to feed the single-phase a.c. traction system such as 25 kV O 25 kV (see Figure 2). Key OHL Cont
40、act line feed Line feeder rail Rail Figure 2 - Typical arrangement for traction autotransformer Each device, fed under the definite voltage between overhead contact line and line feeder, assures the supply to the traction units fed between catenary and rail, the latter being connected to the mid poi
41、nt of the autotransformer. The ratio railOHLfeedOHLUUshall be between 1 and 2 with - UOHL-feedbeing the voltage between the overhead line and the line feeder, - UOHL-rail being the voltage between the overhead line and the return circuit. Licensed Copy: Wang Bin, na, Tue Apr 24 06:26:13 GMT+00:00 20
42、07, Uncontrolled Copy, (c) BSI- 21 - EN 50329:2003 The rated power of an autotransformer covered in this standard shall be defined as follows: SN= Ifeed Ufeed-rail, or N= IOHL UOHL-rail6.2 Specific requirements for auto-transformers 6.2.1 Loading See 2.1. 6.2.2 Checking of the capability of the auto
43、-transformer to sustain the stipulated load cycle See 2.2. 6.2.3 Transferred overvoltages See 2.3. 6.2.4 Short circuit stresses Paragraphs 1 to 3 of 2.4.1 apply. Licensed Copy: Wang Bin, na, Tue Apr 24 06:26:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 50329:2003 - 22 - Annex A (informative) Pref
44、erred duty classes Table A.1 gives the preferred duty classes for the design of traction transformers. Table A.1 - Preferred duty classes Duty class Id. p.u. of IBp.u. of I.NInitial conditionDuration Interval Typical application Note I - 1 1 - Cont. - IA a 1 0,9 - 3 120 s - a.c. systems b 1,7 1,494
45、a 480 s 3 120 s IB a 1 0,873 - 3 300 s - a.c. systems b 2,2 1,903 a 300 s 3 300 s IC a 1 0,691 - 1 500 s - a.c. systems b 2,7 1,901 a 300 s 1 500 s ID a 1 0,668 - 1 620 s - a.c. systems b 3,7 2,446 a 180 s 1 620 s IE a 1 0,652 - 1 680 s - a.c. systems b 4,6 3,007 a 120 s 1 680 s a 1 0,827 - Cont. -
46、mass rapid transit V b 1,5 1,240 a 2 h 3 h trolley buses c 2 1,654 a 60 s 1 800 s a 1 0,823 - Cont. - VI b 1,5 1,234 a 2 h 3 h mainline railways c 3 2,468 a 60 s 1 800 s a 1 0,825 - Cont. - light railways VII b 1,5 1,238 a 2 h 3 h tramways c 4,5 3,716 a 15 s 1 800 s a 1 0,814 - Cont. - mass rapid tr
47、ansit VIII b 1,5 1,221 a 2 h 3 h trolley busses c 2 1,628 b 60 s 1 800 s cumulative a 1 0,785 - Cont. - IXA b 1,5 1,177 a 2 h 3 h mainline railways c 3 2,355 b 300 s 1 800 s cumulative a 1 0,658 - Cont. - IXB b 2 1,315 a 2 h 3 h mainline railways c 3 1,937 b 300 s 1 800 s cumulative Figures A.1 to A
48、.3 give recommended test cycles for the temperature-rise tests of traction transformers, designed according to a duty class. Licensed Copy: Wang Bin, na, Tue Apr 24 06:26:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI- 23 - EN 50329:2003 Figure A.1 - Test cycle for duty classes IA to IE Figure A.2 -
49、Test cycle for duty classes V, VI, VII Figure A.3 - Test cycle for duty classes VIII and IX Licensed Copy: Wang Bin, na, Tue Apr 24 06:26:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 50329:2003 - 24 - Annex B (normative) Insulation characteristics and test values Table B.1 - Insulation voltages and test values Insulation level (Rated insulation voltage) (point to point) Rated short-duration power-frequency withstand voltages (60 s) kV r.m.s. Rated lightning full wave impulse withstand voltage (peak) (1,2/50 s
