BS EN 60034-2-1999 Rotating electrical machines - Methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines for traction vehicle.pdf

1、STD-BSI BS EN b003i-2-ENGL 1999 PI Zb24bb9 0800532 398 BRITISH STANDARD Rotating electrical machines - Part 2: Methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines for traktion vehicles) The European Standard EN 60034-2: 1996 together with ame

2、ndments Al:1996 andu1996 has the status of a British Standard ICs 29.160.01 BS EN 60034-21999 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPRIGm LAW U .I COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesSTD.BSI BS EN b03-2-ENLL L

3、797 lb24bb9 O800533 284 direction of the Electrotechnical Amd. No. Date Sector Board, was published under the authority of the Standards Board and comes into effect on 15 October 1999 BS EN 60034-2:1999 Comments National foreword This British Standard is the English language version of EN 60034-2: 1

4、996, including amendments Al:1996 and A2:1996. It is identical with IEC 34-2:1972 plus IEC 34-2A3974, including amendment 1 1995 and amendment 2 1996. It supersedes BS 4999-102:1987, which is withdrawn. NOTE IEC 34-2kl974 (first supplement to IEC 34-2:1972) is given in annex B of EN 60034-2:1996 Tex

5、t introduced by amendments Al and A2 is indicated by a sideline. The UK participation in its preparation was entrusted to Technical Committee PEI. - present to the responsible internationallEuropean committee any enquiries on the interpretation, or proposals for change, and keep the TJK interests in

6、formed; - 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, ali IEC publications have the number 60000 added to the old number. For instance, I

7、EC 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 The British Standards which implement these international or European publications referred to in t

8、his document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A Britjsh Standard does not purport to include all the necessary provisions of a contract. Us

9、ers of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 67 and a back cover. O BS

10、I 10-1999 I I ISBN O 580 30737 9 COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60034-2 November 1996 + Al November 1996 +A2 November 1996 UDC 821.313.017.2/.6.0i7.8.083.1.4 ICs 29.180.00

11、Superseder HD 53.2 S1:1974 Descriptors: Rotating electrical machinas. power losses, efficiency, determination. tests. power measurements English version Rotating electrical machines Part 2: Methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines

12、for traction vehicles) (includes amendments Al : i 996 and A2 : 1996) (IEC 34-211972 + IEC 34-2A11974 + Al11995 + A2:1996) Machines lectriques tournantes Partie 2: Mthodes pour la dtermination des pertes et du rendement des machines lectriques Drehende elektrische Maschinen Teil 2: Verfahren zur Bes

13、timmung der Verluste und des Wirkungsgrades von drehenden elektrischen Maschinen aus tournantes partir dessais ( lexclusion des machines pour vhicules de traction) (inclut les amendements Al : 1996 et A2 : + A1:1995 + A2:1996) (CE1 34-211972 + IEC 34-2A11974 Prfungen (ausgenommen Maschinen fr Schien

14、en- und Straenfahrzeugel (enthlt nderungen Al : 1996 und A2 : 1996) (IEC 34-211972 + IEC 34-2A11974 1996) a + Al :1995 + A2: 1996) This European Standard was approved by CENELEC on 1996-0742. CENELEC members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions

15、for giving this European Standard the status of a national standard without any alteration. Up-todate 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 off

16、icial 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 electrotechnical com

17、mittees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique E

18、uropisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels o 1996 Copyright resarved to CENELEC membars Ref. No. EN 60034-2:1996+A1:1996+A2:1996 E COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling Service

19、sSTD-BSI BS EN b0034-2-ENGL 1777 lbZlbb7 0800535 057 W Page 2 EN 60034-2:1996 Foreword The text of the International Standard IEC 34-2: 1972 + IEC 34-2A:1974, prepared by SC 2G, Test methods and procedures, of IEC TC 2, Rotating machinery, was approved by CENELEC as HD 53.2 S1 on 1974-1 2-1 1. This

20、Harmonization Document was submitted to the formal vote for conversion into a European Standard and was approved by CENELEC as EN 60034-2 on 1996-07-02. The following date was fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standar

21、d or by endorsement (dop) 1997-06-01 Foreword to amendment Al The text of amendment 1 : 1995 to the International Standard IEC 34-2:1972, prepared by SC 2G, Test methods and procedures, of IEC TC 2, Rotating machinery, was submitted to the formal vote and was approved by CENELEC as amendment Al to E

22、N 60034-2 on 1996-07-02 without any modification. The following dates were fixed: - latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1997-06-01 - latest date by which the national standards conflicting

23、 with the amendment have to be withdrawn (daw) 1997-06-01 For products which have complied with HD 53.2 S1: 1974 (converted into EN 60034-2) before 1997-06-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 2002-06-01. Forew

24、ord to amendment A2 The text of document 2/939/FDIS, prepared by IEC TC 2, Rotating machinery, was submitted to the formal vote and was approved by CENELEC as amendment A2 to EN 60034-2 on 1996-07-02. The text of document 2G/73/FDIS, prepared by SC 2G, Test methods and procedures, of IEC TC 2, was s

25、ubmitted to the IEC-CENELEC parallel vote and was approved by CENELEC for inclusion into amendment A2 to EN 60034-2 on 1996-10-01. NOTE: Amendment 2 to IEC 34-2, published in November 1996, contains both documents 2/939/FDIS and 2Gff 3iFDIS. The following dates were fixed: - latest date by which the

26、 amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dopl 1997-06-01 - latest date by which the national standards conflicting with the amendment have to be withdrawn (daw) 1997-06-01 For products which have complied with HO 53.2 S1:1

27、974 (converted into EN 60034-2) before 1997-06-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 2002-06-01. Q BSI 10-1999 COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling Se

28、rvices STD=BSI BS EN bUUYq-2-ENGL 1777 W Lb2Libb7 080053b T3 I Page 3 EN 60034-2:1996 CONTENTS SECTION ONE . GENERAL Clause 1 . scow 2 . Object 3 . General . 3 .I List of symbols . 4 . Definitions 4.1 Efficiency 4.2 Total loss . 4.3 Breaking test . 4.4 Calibrated driving machine test 4.5 Mechanical

29、back-to-back test 4.6 Electrical back-to-back test 4.7 Retardation test 4.8 Calorimetric test . 4.9 No-load test 4.1 O Open-circuit test . 4.1 1 Sustained short-circuit test . 4.12 Zero power e surface P, = losscs which arc dissipated by the cooiing dts in the form of beat and which can be measured

30、caiori metriaiiiy P, = losses not transmitted to the mihg medium but which aredissipated through the r 110% of the excitation current, corresponding to no-load at a voltage equal to the rated volt- age plus ohmic drop in the armature circuit (armature, brushes and commutating windings if any, see al

31、so Sub-clause 7. I .3.2) at rated load current. b) For compensated shunt or separately excited generators: the excitation current correspond- ing to no-load at a voltage equal to the rated voltage plus the ohmic drop in the armature circuit (armature, brushes, commutating windings and compensating w

32、indings, see also Sub- clause 7. I .3.2) at rated load current. c) For level-compounded generators: the excitation current for the rated no-load voltage, ) For over-compounded and under-compounded generators, and special types of generator not covered by items a) to e): as agreed between manufacture

33、r and purchaser. e) For shunt wound motors: equal to no-load excitation current corresponding to the rated voltage. 7.1 .I .2 Main rlteosta losses These losses are calculated from the formula f2R, where R is the resistance of the part of the rheostat in circuit for the rating considered, and / is th

34、e value of the excitation current defined as in Sub-clause 7. I. I .I above. They are also equal to the product, /U, of the excitation current nultiplied by U, the excitation voltage which must be absorbed in the rheostat. The sum of the losses, Sub-clauses 7.1 . I . I and 7.1.1.2, is also equal to

35、the product , of the excitation current I and the total excitation voltage U,. Nore. - Where a resistance is permanently connected in series in the excitation circuit it should be dealt with in the same way as the main rheostat. 7.1 . .l. 3 Exciter fosses Note. - This applies only to the case where

36、the exciter is mechanically driven from the main shaft and is used solely for exciting the main machine. These losses include the difference between the power absorbed at the shaft by the exciter and the useful power which it provides at its terminals,* as well as theexcitation lossesin the exciter

37、if this is excited from a separate source. which it absorbs may be measured by using the calibrated-machine method. if the exciter can be uncoupled from the main machine and tested separately, the power * The useful power al the ierminals of the exciter is equal to the sum of the losses, Sub-clauses

38、 7. I. I. I and 7. I . i .2, o the main machine. COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesPage 12 EN 60034-2:1996 If the exciter cannot be uncoupled from the main machine, the power which it absorbs may be measured either by the method

39、 of working the main machine as a motor on no-load, or by the calibrated machine method (Clause 13), or by the retardation method (Clause 15), applied to the whole unit. In these three methods, the power absorbed by the exciter is obtained as the difference between the total losses of the unit measu

40、red under identical conditions, first with the exciter on-load and secondly with the exciter nonexcited, the. excitation being supplied by an independent source. if none of these methods is applicable, the power absorbed by the exciter is obtained by adding to the power, measured at the terminals, t

41、he different separate losses determined as un- der Clause 6. However, mechanical friction and windage losses which are measured at the same time as those of the main machine need not be taken into account. I 7.1 .2 Constant losses 7.1 .2.1 No-load test at rated voltage The constant losses shall 6e d

42、etermined by running the machine under no-load conditions as a motor with rated voltage applied and with rated speed achieved by adjustment of the exci- tation, which shall preferably be derived from a separate source. The total electric power absorbed, less the IaR losses in the armature and in the

43、 excitation winding or, if necessary, less the power absorbed by the exciter, gives the sum of the constant losses. 7.1 .2.2 Open circuit test The constant losses can be determined separately by driving the machine at its rated speed by means of a calibrated machine. The machine on test is excited (

44、preferably from an indepen- dent source), so as to work as a generator on no-load at a voltage equal to its rated voltage, the power which it absorbs at its shaft, and which can be obtained from the electric power absorbed by the calibrated machine, giving the sum of the constant losses. By removing

45、 the excitation, the sum of the friction and windage losses is obtained in the same way. e core losses may be determined separately by subtracting the losses during this test from those measured during the previous no-load test. By lifting the brushes the brush friction loss may be determined separa

46、tely by subtracting the losses during this test from those measured during the previous, unexcited test. . 7.1 -2.3 Retardation test I In machines with large inertia, the total constant losses, as well as the separate constant losses, can be determined by the retardation method. 7.1 .3 Load losses T

47、hese are: COPYRIGHT European Committee for Electrotechnical StandardizationLicensed by Information Handling ServicesPage 13 EN 60034-2:1996 7.1 .3.1 Armature circuir 12R losses These losses are calculated from the current and the measured resistance, corrected to the reference temperature, except th

48、at where resistance measurement is impracticable due to very low resistances, calculation is permissible. Nofr. - Under this heading are included compensating windings, commutating pole windings and diverters. In the CBK of diverters in parallel with a series winding, the I*R losss should be determi

49、ned using the total current and the resulting resistance. 7.1 .3.2 Elecirical losses in brushes The sum of these losses shall be taken as the product of the armature current and a fixed voltage drop. The voltage drop allowed for all brushes of each polarity shall be 1.0 V for carbon or graphite bruihes and 0.3 V for metalcarbon brushes, i.t. a total drop of 2.0 V for carbon or graphite brushes, and O. 6 V for metal-carbon brushes. 7. I .4 Additional load losses Unless otherwise specified, it is assumed that these losses vary as the square of the