BS EN 60034-28-2013 Rotating electrical machines Test methods for determining quantities of equivalent circuit diagrams for three-phase low-voltage cage induction motors《旋转电机 测定三相低.pdf

1、BSI Standards PublicationRotating electrical machines Part 28: Test methods for determining quantities of equivalent circuit diagrams for three-phase low-voltage cage induction motorsBS EN 60034-28:2013National forewordThis British Standard is the UK implementation of EN 60034-28:2013. It is identic

2、al to IEC 60034-28:2012. It supersedes BS EN 60034-28:2007 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PEL/2, Rotating electrical machinery.A list of organizations represented on this committee can be obtained on request to its secretary.This publi

3、cation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 73745 9 ICS 29.160Compliance with a British Standard cannot confer immunity f

4、rom legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60034-28:2013EUROPEAN STANDARD EN 60034-28 NORME EUROPENNE EUROPISCHE NOR

5、M June 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means r

6、eserved worldwide for CENELEC members. Ref. No. EN 60034-28:2013 E ICS 29.160 Supersedes EN 60034-28:2007 English version Rotating electrical machines - Part 28: Test methods for determining quantities of equivalent circuit diagrams for three-phase low-voltage cage induction motors (IEC 60034-28:201

7、2) Machines lectriques tournantes - Partie 28: Mthodes dessai pour la dtermination des grandeurs des schmas dquivalence des circuits pour moteurs induction cage basse tension triphass (CEI 60034-28:2012) Drehende elektrische Maschinen - Teil 28: Prfverfahren zur Bestimmung der Ersatzschaltbildgren d

8、reiphasiger Niederspannungs-Kfiglufer-Asynchronmotoren (IEC 60034-28:2012) This European Standard was approved by CENELEC on 2013-01-17. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a nati

9、onal standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A

10、 version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulg

11、aria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzer

12、land, Turkey and the United Kingdom. BS EN 60034-28:2013EN 60034-28:2013 - 2 - Foreword The text of document 2/1685/FDIS, future edition 2 of IEC 60034-28, prepared by IEC/TC 2 “Rotating machinery“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60034-28:2013. The follow

13、ing dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-12-14 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2016-01-17 This docu

14、ment supersedes EN 60034-28:2007. EN 60034-28:2013 includes the following significant technical changes with respect to EN 60034-28:2007: a) the formulae are now all given for equivalent star-connection equivalent circuit diagrams. They are applied even in the case of delta connected windings. All f

15、ormulae for delta connected equivalent circuit diagrams have been moved to notes; b) procedures for the determination of equivalent circuit parameters from a load curve test as an alternative to the reverse rotation and locked rotor tests have been added. Attention is drawn to the possibility that s

16、ome of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 60034-28:2012 was approved by CENELEC as a European Standard without

17、 any modification. BS EN 60034-28:2013- 3 - EN 60034-28:2013 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its

18、application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applie

19、s. Publication Year Title EN/HD Year IEC 60034-1 (mod) 2010 Rotating electrical machines - Part 1: Rating and performance EN 60034-1 + corr. October 2010 2010 IEC 60034-2-1 - Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machine

20、s for traction vehicles) EN 60034-2-1 - IEC 60034-2-2 - Rotating electrical machines - Part 2-2: Specific methods for determining separate losses of large machines from tests - Supplement to IEC 60034-2-1 EN 60034-2-2 - IEC/TS 60034-2-3 1)- Rotating electrical machines - Part 2-3: Specific test meth

21、ods for determining losses and efficiency of converter-fed AC motors - - IEC/TS 60034-25 - Rotating electrical machines - Part 25: Guidance for the design and performance of a.c. motors specifically designed for converter supply CLC/TS 60034-25 - IEC 60044 Series Instrument transformers EN 60044 Ser

22、ies IEC 60051-1 - Direct acting indicating analogue electrical measuring instruments and their accessories - Part 1: Definitions and general requirements common to all parts EN 60051-1 - IEC 60072-1 - Dimensions and output series for rotating electrical machines - Part 1: Frame numbers 56 to 400 and

23、 flange numbers 55 to 1 080 - - 1)To be published. BS EN 60034-28:2013 2 60034-28 IEC:2012 CONTENTS INTRODUCTION . 6 1 Scope . 7 2 Normative references . 7 3 Terms, definitions, symbols and conventions 7 3.1 Terms and definitions 7 3.2 Symbols 8 3.3 Subscripts . 9 3.4 Winding connection . 9 4 Test r

24、equirements 10 4.1 General . 10 4.2 Frequency and voltage 10 4.3 Instrumentation . 10 4.3.1 Measuring instruments for electrical quantities, speed and frequency 10 4.3.2 Instrument transformers . 10 4.3.3 Temperature measurement 10 5 Approximations and uncertainties . 10 6 Test procedures . 11 6.1 G

25、eneral . 11 6.2 Stator d.c. line-to-line resistance measurement . 11 6.3 Load-test at rated load 11 6.4 Load curve test 12 6.5 No-load test . 12 6.6 Reverse rotation and locked rotor tests . 13 6.6.1 General . 13 6.6.2 Reverse rotation test . 13 6.6.3 Locked rotor test 13 7 Determination of motor qu

26、antities . 13 7.1 General . 13 7.2 Resistance of stator winding Rs. 15 7.3 Total stator inductance Lts= Lm+ Ls15 7.3.1 General . 15 7.3.2 Determination procedure . 15 7.4 Equivalent resistance of iron losses Rfe16 7.4.1 Constant losses . 16 7.4.2 Friction and windage losses. 17 7.4.3 Iron losses . 1

27、7 7.5 Total leakage inductance Lt. 18 7.5.1 General . 18 7.5.2 Distribution of leakage inductances between stator and rotor. 18 7.5.3 Determination of total leakage inductance from a reverse rotation or locked rotor test (6.6) 18 7.5.4 Determination of total leakage inductance from a load curve test

28、 (6.4) 20 7.6 Magnetizing inductance Lm and voltage Um21 7.6.1 From a reverse rotation or locked rotor test (6.6) . 21 7.6.2 From a load curve test (6.4) . 21 BS EN 60034-28:201360034-28 IEC:2012 3 7.7 Stator and rotor leakage inductances Lsand Lr . 22 7.7.1 From a reverse rotation or locked rotor t

29、est (6.6) . 22 7.7.2 From a load curve test (6.4) . 22 7.8 Inductances for calculations at constant flux (rated load) . 22 7.9 Resistance of rotor cage Rr referred to the stator winding and frequency 23 7.10 Equivalent resistance of iron losses Rfe25 Annex A (informative) Sample calculation 26 Figur

30、e 1 Type-T equivalent circuit diagram 14 Figure 2 Type-T equivalent circuit diagram (iron losses disregarded) . 14 Figure 3 Type-L equivalent circuit diagram (iron losses disregarded) . 14 Figure 4 Type- equivalent circuit diagram. 15 Figure 5 Typical characteristics of inductance L over current I .

31、 16 BS EN 60034-28:2013 6 60034-28 IEC:2012 INTRODUCTION Equivalent circuits are widely used in the control of adjustable speed drives with induction motors supplied by frequency inverters. The motor parameters are required for the realisation of flux oriented control or other model-based control al

32、gorithms. Their knowledge is required by suppliers and system engineers, especially when motors and frequency inverters from different suppliers are combined. This standard provides a standardized test procedure to determine the electric motor parameters. At the same time the draft offers an improve

33、d understanding of the equivalent circuit method. The procedures can be carried out in laboratories equipped for standard electric machinery tests. NOTE This standards main purpose is for assistance in modelling frequency controlled motors. Due to the simplifications the results cannot be used to de

34、termine motor performance or efficiency accurately. A related technical specification is IEC/TS 60034-25 where required motor parameters are listed, but their definition and methods of determination are not included. BS EN 60034-28:201360034-28 IEC:2012 7 ROTATING ELECTRICAL MACHINES Part 28: Test m

35、ethods for determining quantities of equivalent circuit diagrams for three-phase low-voltage cage induction motors 1 Scope This part of the IEC 60034 series applies to three-phase low-voltage cage induction motors of frame numbers 56 to 400 as specified in IEC 60072-1. This standard establishes proc

36、edures to obtain values for elements of single phase equivalent circuit diagrams from tests and defines standard elements of these diagrams. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For

37、 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60034-1:2010, Rotating electrical machines Part 1: Rating and performance IEC 60034-2-1, Rotating electrical machines Part 2-1: Standard me

38、thods for determining losses and efficiency from tests (excluding machines for traction vehicles) IEC 60034-2-2, Rotating electrical machines Part 2-2: Specific methods for determining separate losses of large machines from tests Supplement to IEC 60034-2-1 IEC 60034-2-31, Rotating electrical machin

39、es Part 2-3: Specific test methods for determining losses and efficiency of converter-fed AC motors IEC/TS 60034-252, Rotating electrical machines Part 25: A.C. Motors when used in power drive systems - Application guide IEC 60044 (all parts), Instrument transformers IEC 60051-1, Direct acting indic

40、ating analogue electrical measuring instruments and their accessories Part 1: Definitions and general requirements common to all parts IEC 60072-1, Dimensions and output series for rotating electrical machines Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080 3 Terms, definitions, symbol

41、s and conventions 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60034-1:2010 apply. 1To be published. 2A revision of this publication is currently under preparation. BS EN 60034-28:2013 8 60034-28 IEC:2012 3.2 Symbols The following symbols apply:

42、 cos is the power factor cos Nis the rated power factor f is the stator supply frequency, Hz fris the frequency of the rotor current (slip frequency), Hz fNis the rated frequency, Hz h is the height of the rotor-conductor bar, m H is the motor frame size according to IEC 60072-1 (distance from the c

43、entre-line of the shaft to the bottom of the feet (basic dimension), mm I is the stator line current, A Isis the stator phase current, A Ir is the rotor phase current, A Imis the magnetizing current, A INis the rated stator current, A kiis the skin effect factor for inductances kris the reciprocal o

44、f the temperature coefficient of resistance at 0 C of the rotor conductor material, see Note 1 ksis the reciprocal of the temperature coefficient of resistance at 0 C of the stator conductor material, see Note 1 kis the ratio of the stator to the rotor leakage inductances Lmis the magnetizing induct

45、ance, H Lsis the stator leakage inductance, H Lr is the rotor leakage inductance, H Ltis the total leakage inductance (= Ls+ Lr), H Lais the total leakage inductance disregarding the skin effect, H Ltsis the total stator inductance (= Lm+ Ls), H Ltr is the total rotor inductance (= Lm+ Lr), H n is t

46、he operating speed, min1nNis the rated speed, min1nsynis the rated synchronous speed, min1p is the number of pole pairs PSis the electrical input power, W P2Nis the mechanical output power, W Pkis the constant losses, W Pfwis the friction and windage losses, W Pfeis the iron losses, W R is the line-

47、to-line resistance, Rfeis the equivalent circuit resistance of iron losses, Rll,mis the stator line-to-line resistance at initial winding temperature, Rs,25is the stator phase-resistance corrected to a temperature of 25 C, Rr is the rotor cage resistance, Rr,25 is the rotor resistance corrected to a

48、n ambient temperature of 25 C, BS EN 60034-28:201360034-28 IEC:2012 9 Rr,m is the rotor resistance at initial winding temperature, s is the slip, in per unit value of synchronous speed sNis the rated slip U is the stator terminal voltage, V Usis the stator phase voltage, V Umis the voltage drop over

49、 the magnetizing inductance, V UNis the rated terminal voltage, V Xmis the magnetizing reactance (= 2fNLm), Xsis the stator leakage reactance (= 2fNLs), Xr is the rotor leakage reactance (= 2fNLr), Xtis the total leakage reactance (= 2fNLt), Xais the total leakage reactance disregarding the skin effect (= 2fNLa), Xtsis the total stator reactance (= 2fNLts), Xtr is the total rotor reactance (= 2fN