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IEC 60034-30-1 Edition 1.0 2014-03 INTERNATIONAL STANDARD NORME INTERNATIONALE

IEC 60034-30-1 Edition 1.0 2014-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Rotating electrical machines – Part 30-1: Efficiency classes of line operated AC motors (IE code) Machines électriques tournantes – Partie 30-1: Classes de rendement pour les moteurs à courant alternatif alimentés par le réseau (code IE) INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE T ICS 29.160 PRICE CODE CODE PRIX ISBN 978-2-8322-1415-2 ® Registered trademark of the International Electrotechnical Commission Marque déposée de la Commission Electrotechnique Internationale ® Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé. This is a preview - click here to buy the full publication – 2 – IEC 60034-30-1:2014 © IEC 2014 CONTENTS FOREWORD ........................................................................................................................... 3 INTRODUCTION ..................................................................................................................... 5 1 Scope .............................................................................................................................. 7 2 Normative references ...................................................................................................... 8 3 Terms, definitions and symbols ....................................................................................... 9 3.1 Terms and definitions ......................................................................................... 9 3.2 Symbols ............................................................................................................. 9 4 Fields of application ...................................................................................................... 10 5 Efficiency....................................................................................................................... 11 5.1 Determination .................................................................................................. 11 5.1.1 General .......................................................................................... 11 5.1.2 Rated voltages, rated frequencies and rated power ........................ 11 5.1.3 Auxiliary devices ............................................................................. 12 5.2 Rating .............................................................................................................. 12 5.3 Classification and marking ............................................................................... 13 5.3.1 General .......................................................................................... 13 5.3.2 Efficiency classification ................................................................... 13 5.3.3 Motors below IE1 efficiency ............................................................ 13 5.3.4 Marking .......................................................................................... 13 5.4 Nominal limits for efficiency classes IE1, IE2, IE3 and IE4 ............................... 13 5.4.1 Nominal efficiency limits for IE1 ...................................................... 14 5.4.2 Nominal efficiency limits for IE2 ...................................................... 16 5.4.3 Nominal efficiency limits for IE3 ...................................................... 18 5.4.4 Nominal efficiency limits for IE4 ...................................................... 20 5.4.5 Interpolation of nominal efficiency limits of intermediate rated powers for 50 Hz mains supply frequency ....................................... 21 5.4.6 Interpolation of nominal efficiency limits of intermediate rated powers for 60 Hz mains supply frequency ....................................... 23 Annex A (informative) Nominal limits for efficiency class IE5 ............................................... 24 Bibliography .......................................................................................................................... 25 Table 1 – Motor technologies and their energy-efficiency potential ....................................... 10 Table 2 – IE-Efficiency classification ..................................................................................... 13 Table 3 – Nominal efficiency limits (%) for 50 Hz IE1 ............................................................ 14 Table 4 – Nominal efficiency limits (%) for 60 Hz IE1 ............................................................ 15 Table 5 – Nominal efficiency limits (%) for 50 Hz IE2 ............................................................ 16 Table 6 – Nominal efficiency limits (%) for 60 Hz IE2 ............................................................ 17 Table 7 – Nominal efficiency limits (%) for 50 Hz IE3 ............................................................ 18 Table 8 – Nominal efficiency limits (%) for 60 Hz IE3 ............................................................ 19 Table 9 – Nominal efficiency limits (%) for 50 Hz IE4 ............................................................ 20 Table 10 – Nominal efficiency limits (%) for 60 Hz IE4 .......................................................... 21 Table 11 – Interpolation coefficients for 0,12 kW up to 0,74 kW ............................................ 22 Table 12 – Interpolation coefficients for 0,75 kW up to 200 kW ............................................. 22 This is a preview - click here to buy the full publication IEC 60034-30-1:2014 © IEC 2014 – 3 – INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________ ROTATING ELECTRICAL MACHINES – Part 30-1: Efficiency classes of line operated AC motors (IE code) FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60034-30-1 has been prepared by IEC technical committee 2: Rotating machinery. This first edition of IEC 60034-30-1 cancels and replaces IEC 60034-30 (2008). It also cancels and replaces Annex A of IEC 60034-31 (2010). In the next revision of IEC 60034- 31:2010 this annex will be removed from its contents. The text of this standard is based on the following documents: FDIS Report on voting 2/1729/FDIS 2/1739/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This is a preview - click here to buy the full publication – 4 – IEC 60034-30-1:2014 © IEC 2014 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. NOTE A table of cross-references of all IEC TC 2 publications can be found on the IEC TC 2 dashboard on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be • reconfirmed, • withdrawn, • replaced by a revised edition, or • amended. This is a preview - click here to buy the full publication IEC 60034-30-1:2014 © IEC 2014 – 5 – INTRODUCTION This IEC standard provides for the global harmonization of energy-efficiency classes of electric motors. It deals with all kinds of electric motors that are rated for line operation (including starting at reduced voltage). This includes all single- and three-phase low voltage induction motors, regardless of their rated voltage and frequency, as well as line-start permanent-magnet motors. A second part of this standard series (IEC 60034-30-2) will be prepared for motors rated for variable voltage and frequency supply, such as synchronous motors. The second part will also provide for harmonic voltage losses in motors capable of line operation when fed by frequency converters. IEC 60034-30-1 widens the product range covered in the first edition of IEC 60034-30 significantly. The power range has been expanded (starting at 0,12 kW and ending at 1 000 kW). All technical constructions of electric motors are covered as long as they are rated for on-line operation and not just three-phase, cage-induction motors as in the first edition. The IE4 class is newly included in this standard. The informative definition of IE4, which was previously included in IEC/TS 60034-31:2010, is therefore outdated. The new class IE5 is not yet defined in detail but is envisaged for potential products in a future edition of the standard. For a given power and frame size it is generally easier to achieve a higher motor efficiency when the motor is designed for and operated directly on-line with a 60 Hz supply frequency rather than on 50 Hz as explained in Note 1. NOTE 1 As the utilization and size of motors are related to torque rather than power the theoretical power of single-speed motors increases linearly with supply frequency (and hence with speed), i.e. by 20 % from 50 Hz to 60 Hz. I2R winding-losses are dominant especially in small and medium sized induction motors. They basically remain constant at 50 Hz and 60 Hz as uploads/Industriel/international-standard-norme-internationale 8 .pdf