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1、 N NE EMMA A MG G 1 MOTORS AND GENERATORS ? ANSI Approval Date June 13, 2011 NEMA Standards Publication ANSI/NEMA MG 1-2009, (R2010) Motors and Generators Revised Pages Only Published by: National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, VA 22209 www.nema.org
2、Copyright 2010 by the National Electrical Manufacturers Association. All rights including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conv
3、entions. ? NOTICE AND DISCLAIMER The information in this publication was considered technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus does not necessarily mean that there is unanimous agreement among every pe
4、rson participating in the development of this document. The National Electrical Manufacturers Association (NEMA) standards and guideline publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings togethe
5、r volunteers and/or seeks out the views of persons who have an interest in the topic covered by this publication. While NEMA administers the process and establishes rules to promote fairness in the development of consensus, it does not write the document and it does not independently test, evaluate,
6、 or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline publications. NEMA disclaims liability for any personal injury, property, or other damages of any nature whatsoever, whether special, indirect, consequential, or comp
7、ensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA disclaims and makes no guaranty or warranty, express or implied, as to the accuracy or completeness of any information published herein, and disclaims and makes no warranty that t
8、he information in this document will fulfill any of your particular purposes or needs. NEMA does not undertake to guarantee the performance of any individual manufacturer or sellers products or services by virtue of this standard or guide. In publishing and making this document available, NEMA is no
9、t undertaking to render professional or other services for or on behalf of any person or entity, nor is NEMA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice
10、 of a competent professional in determining the exercise of reasonable care in any given circumstances. Information and other standards on the topic covered by this publication may be available from other sources, which the user may wish to consult for additional views or information not covered by
11、this publication. NEMA has no power, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compliance with any health
12、 or safetyrelated information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. ? MG 1-2009, Revision 1-2010 Summary of Changes, Page 1 Changes made for MG 1-2009, Revision 1-2010 are marked by an orange line to the left o
13、f the changed material NoteWhere text has been revised in more than one version, only the most recent is color-coded Example of change made for MG 1-2009, Revision 1-2010 Section I, Part 7 7.4.2 Replaced “inches” with “mils” 7.6.1 Revised text Figure 7-1 Renamed figure 7.8.1 Revised text Figure 7-6
14、Replaced figure Table 7-1 Revised table 7.8.2 Deleted section 7.8.3 Deleted section 7.8.4 Deleted section 7.8.5 Revised reference to table 7.8.6 Revised reference to table 7.9.1 Revised reference to table 7.9.2 Revised text and reference to table 7.9.3 Deleted section Table 7-2 Deleted table Table 7
15、-3 Deleted table Table 7-4 Added table to replace Tables 7-2 and 7-3 Section II, Part 14 14.48 Added section ? MG 1-2009, Revision 1-2010 Summary of Changes, Page 2 Changes made for MG 1-2009 are marked by a red line to the left of the changed material NoteWhere text has been revised in more than on
16、e version, only the most recent is color-coded Example of change made for MG 1-2009 Section I, Part 1 1.1Added: Reference to IEC 60034-30-2008 1.16 Deleted section 1.41.3 Added: Premium Efficiency Motor Section I, Part 2 2.2Added: “To prevent confusion with the numerals 1 and 0, the letters “I” and
17、“O” shall not be used.” Updated footnote references Added and revised markings Added: Reference to 2.67 for auxiliary devices 2.60.1.2 Revised Figure 2-48B for clarity 2.67 Added: Auxiliary Devices (entire section) Section I, Part 4 Table 4-2 Dimension revised in column 6 Section II, Part 10 Table 1
18、0-5 Adjusted table Section II, Part 12 12.41 In table, corrected synchronous speed of the 50 Hz machine 12.60.3 Added: Additional paragraphs, equation, and table Table 12-14 Replaced Table 12-14 12.62 Revised 12.62a For 12.62b and 12.62d, revised minimum insulation resistance Added: Note 12.63 Note
19、2: Updated reference to 20.8 Section II, Part 13 13.2 Revised frame size Section II, Part 18: 18.131 Figure 18-16: Dimension revised to 5.875 Section III, Part 20: 20.18.1 Revised 20.18.1a For 20.18.1b and 20.18.1d, revised minimum insulation resistance 20.18.2 Revised 20.18.2a For 20.18.2b and 20.1
20、8.2d, revised minimum insulation resistance Added: Note Section IV, Part 30: Table 30-1 Revised footnote G.1 reference to 12.53 ? MG 1-2009, Revision 1-2010 Summary of Changes, Page 3 Changes made for MG 1-2006 Revision 1, published Nov. 20, 2007 (includes MG 1- 2006 Errata) are marked by a blue lin
21、e to the left of the changed material NoteWhere text has been revised in more than one version, only the most recent is color-coded Example of change made for MG 1-2006 Revision 1 Contents Entire Table of Contents was revised due to added sections and repagination Section I, Part 1 1.16 NEMA PREMIUM
22、EFFICIENCY ELECTRIC MOTOR Changed TM to Deleted general paragraph, added: 1.16.1 60 Hz 1.16.2 50 Hz Section I, Part 2 2.2 TERMINAL MARKINGS Footnotes 2.20.2 Induction Machines 2.24 DIRECTION OF ROTATION 2.60.1.1 Terminal Markings Using “T” 2.60.1.2 Terminal Markings in Accordance with IEC 60034-8 Us
23、ing U, V, W FIGURE 2-48B Added figure 2.61.6 Sixth Revised text Section I, Part 3 3.1.8 Accessories and Components Inserted sentence Section I, Part 4 4.9.4 Parallelism of Keyseats to Shaft Centerline 4.9.5 Lateral Displacement of Keyseats Figure 4-7 Corrected specifications 4.9.8 Shaft Extension Ke
24、y(s) Table 4-7 Corrected specifications Section II, Part 10 RatingsAC Motors 10.38 NAMEPLATE TEMPERATURE RATINGS FOR ALTERNATING-CURRENT SMALL AND UNIVERSAL MOTORS Corrected reference 12.42.3 10.40.1 Medium Single-Phase and Polyphase Squirrel-Cage Motors Corrected references in text and footnote 2 1
25、0.42.2 Polyphase Wound-Rotor Motors Corrected references in text Section II, Part 10 RatingsDC Motors 10.66.2 Small Motors Except Those Rated 1/20 Horsepower and Less Corrected footnote references ? MG 1-2009, Revision 1-2010 Summary of Changes, Page 4 Section II, Part 12 Ratings Tests and Performan
26、ce AC Motors 12.42.4 Temperature Rise for Air-Cooled Machines for Ambients Lower than 40 C, but Not Below 0 C (Added section) 12.43.2 Temperature Rise for Air-Cooled Machines for Ambients Lower than 40 C, but Not Below 0 C (Added section) 12.60 EFFICIENCY LEVEL OF PREMIUM EFFICIENCY ELECTRIC MOTORS
27、(Added throughout) Tables 12-12 through 12-14 (Added ) 12-13 FULL-LOAD EFFICIENCIES FOR 60 HZ NEMA PREMIUM EFFICIENCY ELECTRIC MOTORS (Added ), edited table title 12.62 MACHINE WITH ENCAPSULATED OR SEALED WINDINGSCONFORMANCE TESTS (Clarified text in b and d) Section II, Part 12 Ratings Tests and Per
28、formance DC Motors 12.67.5 Temperature Rise for Air-Cooled Machines for Ambients Lower than 40 C, but Not Below 0 C Added section Section II, Part 15 15.41.2 Temperature Rise for Ambients Higher than 40C Added section Section III, Part 20 20.8.1 Machines with a 1.0 Service Factor at Rated Load Corre
29、cted reference in footnote 20.8.2 Machines with a 1.15 Service Factor at Service Factor Load Corrected reference in footnote 20.18.1 Test for Stator Which Can Be Submerged Clarified text in b and d 20.18.2 Test for Stator Which Can Be Submerged Clarified text in b and d Section III, Part 20 21.10.5
30、Temperature Rise for Air-Cooled Motors for Ambients Lower than 40 C, but Not Below 0 C Deleted lower ambients in a and b 21.28.3 Unusual Service Conditions Corrected references in subclause b. 21.37 COMPRESSOR FACTORS Corrected reference 21.38 SURGE CAPABILITIES OF AC WINDINGS WITH FORM-WOUND COILS
31、Corrected reference Section III, Part 23 23.9.3 Temperature Rise for Air-Cooled Machines for Ambients Lower than 40 C, but Not Below 0 C Added section Section III, Part 24 24.40.3 Temperature Rise for Air-Cooled Machines for Ambients Lower than 40 C, but Not Below 0 C Added section ? MG 1-2009, Revi
32、sion 1-2010 Summary of Changes, Page 5 Section IV, Part 31 31.4.1.6 Temperature Rise for Air-Cooled Machines for Ambients Lower than 40 C, but Not Below 0 C Added section Section IV, Part 32 Table 32-3 corrected reference 32.6.2 Temperature Rise for Air-Cooled Machines for Ambients Lower than 40 C,
33、but Not Below 0 C Added section 32.26 GENERATOR TERMINAL HOUSING Added “housing” Section IV, Part 33 33.3.2.5 Temperature Rise for Air-Cooled Machines for Ambients Lower than 40 C, but Not Below 0 C Added section ? MG 1-2009, Revision 1-2010 Summary of Changes, Page 6 Changes made for MG 1-2003 Revi
34、sion 2, published as MG 1-2006, are marked by a purple line to the left of the changed material NoteWhere text has been revised in more than one version, only the most recent is color-coded Example of change made for MG 1-2003 Revision 2, published as MG 1-2006 Section I, Part 1 1.1 Referenced Stand
35、ards updated to reflect current editions 1.70 NAMEPLATE MARKING Entire section added Section I, Part 3 3.1.8 Accessories and Components Correction 3.1.11 Tests of an Assembled Group of Machines and Apparatus Correction Section I, Part 4 4.4.1 Dimensions for Alternating-Current Foot-Mounted Machines
36、with Single Straight-Shaft Extension Notes correction 4.4.2 Notes correction 4.4.3 Notes correction 4.5.1 Notes correction 4.5.2Notes correction 4.5.3Notes 4.9.3 Bottom of Keyseat to Shaft Surface Figure 4-7 Corrected dimension 4.9.8 Shaft Extension Key(s) correction Section I, Part 9 9.1SCOPE chang
37、ed “electrical motors” to “machines” 9.4METHODS OF MEASUREMENT updated references to ANSI standards 9.4.2 “The” (added; “Either” deleted) method specified in ANSI S12.56 may be used. 9.6.2 Corrected reference to 9.6.2b Table 9-4 Updated ANSI standard references; added third column Section II, Part 1
38、0 10.39 corrected section reference 10.39.6 deleted 10.40.1 Medium Single-Phase and Polyphase Squirrel-Cage Motors corrected section reference 10.66 NAMEPLATE MARKING correction 10.66.3 Medium Motors correction Section II, Part 12 12.3 HIGH-POTENTIAL TEST VOLTAGES FOR UNIVERSAL, INDUCTION, AND DIREC
39、T- CURRENT MOTORS MG 1-2009, Revision 1-2010 Summary of Changes, Page 7 Corrections to Effective Test Voltage Corrections to Note 3 80 percent 12.35 LOCKED-ROTOR CURRENT OF 3-PHASE SMALL AND MEDIUM SQUIRREL-CAGE INDUCTION MOTORS deleted reference “60-hertz” and “rated at 230 volts” 12.40.1 Design A
40、and B Motors The pull-up torque of Design A and B Added: 60- and 50-hertz 12.40.2 Design C Motors The pull-up torque of Design C Added: 60- and 50-hertz, single speed, polyphase squirrel-cage medium motors 12.54.1 Normal Starting Conditions 12.54.3 Considerations for Additional Starts Table 12-7SQUI
41、RREL-CAGE INDUCTION MOTORS Revised specifications Section II, Part 14 14.43 ASEISMATIC CAPABILITY Table 14-1 MEDIUM MOTORSPOLYPHASE INDUCTION Correction to conventional specifications Section II, Part 15 15.12 NAMEPLATE MARKING Section II Part 18 Added and corrected headers throughout (editorial) !D
42、EFINITE PURPOSE MACHINES !MOTORS FOR HERMETIC REFRIGERATION COMPRESSORS !SMALL MOTORS FOR AIR CONDITIONING CONDENSERS AND EVAPORATOR FANS !SMALL MOTORS FOR GASOLINE DISPENSING PUMPS !SMALL MOTORS FOR HOME LAUNDRY EQUIPMENT !MEDIUM AC POLYPHASE ELEVATOR MOTORS !MEDIUM AC CRANE MOTORS !MEDIUM SHELL-TY
43、PE MOTORS FOR WOODWORKING AND MACHINE- TOOL APPLICATIONS 18.9 VARIATIONS updated reference to 12.44 18.27 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.41 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.52 VARIATIONS FROM RATED VOLTAG
44、E AND RATED FREQUENCY updated reference to 12.44 18.74 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.101 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.111 NAMEPLATE MARKING 18.116 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY up
45、dated reference to 12.44 18.128 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.142 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 MG 1-2009, Revision 1-2010 Summary of Changes, Page 8 18.152 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUE
46、NCY updated reference to 12.44 18.153 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.165 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.166 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.177 VARIATIONS
47、 FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.178 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.210 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.211 NAMEPLATE MARKING 18.216 NAMEPLATE MARKING (Revised refere
48、nce) 18.225 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY updated reference to 12.44 18.230 DIMENSIONS AND TOLERANCES FOR ALTERNATING-CURRENT OPEN AND TOTALLY ENCLOSED WOUND-ROTOR CRANE MOTORS HAVING ANTIFRICTION BEARINGS Deleted note 18.247 VARIATIONS FROM RATED VOLTAGE AND RATED FREQUENCY upda
49、ted reference to 12.44 18.264 NAMEPLATE MARKING 18.269.1 AC Torque Motors 18.269.2 DC Torque Motors Section III Part 20 20.5 VOLTAGE RATINGS (complete replacement of existing text) 20.7.3.1 General 20.8.5 Temperature Rise for Air-Cooled Machines for Ambients Lower than 40C, but Not Below 0 C Added section 20.10.3 Motor Torques When Customer Specifies A Custo