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1、I ANSI C50.10-1990 for Rotating Electrical Machinery - Synchronous Machnes -m =In American National Standards Institute 1430 Broadway New York, New York 1 O01 8 -,-,- ANSI C50-10 90 W 0724150 0029934 O W American National Standard Approval of an American National Standard requires verification by AN
2、SI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. S
3、ubstantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The use of American National Standards is completely voluntary; their existence doe
4、s not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstance
5、s give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be ad- dressed to the secretaria
6、t or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this sta
7、ndard. Purchasers of American National Standards may receive current information on all standards by calling orwriting the American National Standards Institute. Published by American National Standards Institute 11 West 42nd Street, New York, NY 10036 Copyright O 1991 by American National Standards
8、 Institute All rights reserved. No part of this publication ma be reproduced in any without prior written permission of the publisher. form, in an electronic retrieva Y system or otherwise, Printed in the United States of America APS5C491118 -,-,- ANSI C50-30 90 m 0724350 0029935 2 m I ANSI C50.10-1
9、990 Revision of ANSI C50.10-1977 American National Standard for Rotating Electrical Machinery - Synchronous Machines Secretariat National Electrical Manufacturers Association Approved July 5,1990 American National Standards institute, Inc -,-,- - A N S I C50-10 90 W 0724150 002993b 4 Contents Page F
10、oreword . III . 1 2 3 4 5 6 7 8 9 10 11 12 Scope and classification 1 Normative references . 1 Service conditions 2 Rating . 3 Temperature 3 Insu tat ion systems 4 Efficiency . 6 Wave shape . 8 Tests . 8 Heat exchangers 1 O Terminal markings I O Nameplate . 1 O Table 1 Reference temperatures for use
11、 in determining /*R losses 6 Annex A Bibliography 11 -,-,- Foreword (This foreword is not part of American National Standard C50.10-1990.) This standard contains general requirements and definitions applicable to all types of 60-hertz synchronous machines, except fractional horsepower motors. Specif
12、ic topics include classification by structure-and methods of cooling, service conditions, output rating, temperature determiniation, in- sulation systems, efficiency, tests, terminal markings, and nameplate require me nt s. ANSI C50.10-1977 was developed over a period of more than two years within a
13、 working group that reflected wide industrial experience in both the manufacture and use of synchronous machines. It received unanimous approval of the (250.1 Subcommittee on Synchronous Machines and full endorsement of the Acrcredited Standards Committee C50 on Rotating Electrical Machinery. ANSI C
14、50.10-1977 was approved as an American National Standard on August 4, 1975 and published in 1977. In 1982, the C50.1 Subcommittee began revision on ANSI C50.10-1977. Subsequently, the reference temperatures (table 1) for use in determining PR losses were revised, and test voltages for armature or fi
15、eld windings rated 35 V or less were deleted. Efforts were also made to correlate ANSI C50.1 O with related American National Standards, ANSI C50.12, C50.13, and C50.14. Following lengthy review under ANSI consensus procedures, and resolution of all comments received, the revised ANSI C50.10 was app
16、roved on July 5, 1990. This standard is essential to the family of American National Standards covering synchronous machines. It provides the general requirements applicable to all synchronous machines with excitation windings. Specific requirements for each type of synchronous generator and motor a
17、re detailed in the standards that are referenced. This standard contains one informative annex. Suggestions for improvement of this standard will be welcome. They should be sent to the National Electrical Manufacturers Association, 2101 L Street, NW, Washington, DC 20037. This standard was processed
18、 and approved for submittal to ANSI by the Accredited Standards Committee on Rotating Electrical Machinery, C50. Committee approval of the standard does not necessarily imply that all committee members voted for its approval. At the time it approved this standard, Accredited Standards Committee C50
19、had the following members: Paul I. Nippes, Chairman James D. Raba, Secretary Organization Represented Name of Representative American Petroleum Institute D. C. Azbill Association of Iron and Steel Engineers Stanley C. Houk Chemical Manufacturers Association . C. James Erickson Crane Manufacturers As
20、sociation of America Gerald Schmid Electrical Apparatus Service Association . David L. Gebhart (Chairman) Wilson A. Gilec Preben Christensen (Alt.) (Chairman) D. E. Loberg Electric Light and Power Group Joseph J. Wilkes iii -,-,- ANSI C50.10 q O = 0724350 0029938 8 Organization Represented Name of R
21、epresentative Arnold R. Roby John S. Sawvel, Jr. Glen H. Griffin (Alt.) David E. Soffrin (Alt.) H. A. Van Wassen (Alt.) Factory Mutual Systems Demitrious M. Kardydas Institute of Electrical and Electronics Engineers S. B. Kuznetsov Hydraulic Institute Robert G. Crawford (Chairman) William C. Dumper
22、Peter R. Landrieu William R. McCown James A. Oliver M. H. Hesse (Alt.) Edgar F. Merrill (Alt.) National Electrical Contractors Association . Charles J. Hart National Electrical Manufacturers Association . John Keinz (Chairman) Joseph E. Martin Walter G. Stiff ler Dale Rawlings Society of Automotive
23、Engineers Andrew 0. Salem Technical Association of the Pulp and Paper Industry Robert A. Richardson US. Department of the Navy Harold J. Blakney Reagan Clark Individual Members Lorne W. Brotherton Calvin C. Cummins Joseph P. Fitzgerald Bjorn M. Kaupang Paul I. Nippes Joseph E. Shea J. C. White Perry
24、 A. Weyant Technical subcommittee C50.1 on Synchronous Machines, which was responsible for the development of this standard had the following members: Joseph J. Wilkes, Chairman James Fiaba, Secretary Charles J. Czech Joseph P. Fitzgerald Nirmal K. Ghai James J. Gibney, Ill Peter B. Goetz Brian E. B
25、. Gott Glen H. Griffin Howard E. Jordan P.R. Landrieu J. M. Mayher William R. McCown James R. Michalec James A. Oliver Arnold R. Roby Perry A. Weyant iv -,-,- AMERICAN NATIONAL STANDARD ANSI C50.10-1990 American National Standard for Rotating Electrical Machinery - Synchronous Machines 1 Scope and c
26、lassification 1.1 Scope The requirements for synchronous machines with excitation windings are covered by the following American National Standards. ANSI C50.1 O, Rotating electrical machinery - Synchronous machines; ANSI C50.12, Requirements for salient-pole synchronous generators and generatormoto
27、rs for hydraulic turbine applications; ANSI C50.13, Rotating electrical machinery - Cylindrical-rotor synchronous generators; ANSI (350.1 4, Requirements for combustion- gas - turbine -driven -cylindrical- ro to r synchro - nous generators; ANSI C50.15, Rotating electrical machinery - Hydrogen-coole
28、d, combustion-gas-turbine- driven, cylindrical-rotor synchronous genera- tors - Requirements; ANSIIIEEE 11 5, Test procedures for synchro- nous machines. This standard contains general requirements and definitions applicable to all types of 60-Hz synchronous machines, except fractional horsepower mo
29、tors. Specific requirements for salient-pole synchronous generators will be found in ANSI C50.12, cylindrical-rotor syn- chronous generators in ANSI C50.13, com- bustion-gas-turbine-driven, cylindrical-rotor synchronous generators in ANSI C50.14, and hydrogen-cooled, combustion-gas-turbine- driven,
30、cylindrical-rotor synchronous genera- tors in ANSI C50.15. 1.2 Classification Synchronous machines are classified structur- ally as salient-pole machines and cylindrical rotor machines. Synchronous machines are also classified with regard to cooling into indi-. rectly cooled machines and directly co
31、oled machines, as follows: - Indirectly cooled armature or field wind- ings are those in which the heat generated within the principal portion of the windings must flow through the major ground insula- tion before reaching the cooling medium: - Directly cooled armature or field wind- ings are those
32、in which coolant flows in close contact with the conductors so that the heat generated within the principal portion of the windings reaches the cooling medium without flowing through the major ground insulation. 2 Normative references The following standards contain provisions that, through referenc
33、e in this text, constitute provi- sions of this American National Standard. At the time of publication, the editions indicated were valid. All standards are subject to revi- sion, and parties to agreements based on this American National Standard are encouraged to investigate the possibility of appl
34、ying the most recent editions of the standards indicated below. ANSI C50.12-1982 (R1989), Requirements for salient-pole synchronous generators and gen- erator/motors for hydraulic turbine applications ANSI C50.13-1989, Rotating electrical ma- chinery - Cylindrical-rotor synchronous gen- era tors ANS
35、I C50.14-1977 (R1989), Requirements for CO mbus tion -gas - tu rbine -drive n cy lin drica I- rotor synchronous generators 1 -,-,- ANSI C50-10 90 0724350 0029940 b ANSI C50.10-1990 ANSI C50.15-1989, Rotating electrical ma- chinery - Hydrogen-cooled, combustion-gas- turbine-driven, cylindrical-rotor
36、synchronous generators - Requirements ANSMEEE 1-1 986, General principles for temperature limits in the rating of electric equipment and for the evaluation of electrical insulation ANSMEEE 100-1 988, Standard dictionary of electric and electronics terms ANSVIEEE 115-1983, Test procedures for synchro
37、nous machines NEMA MG1-1987, Motors and generators 3 Service conditions Machines conforming to this standard shall be suitable for carrying load in accordance with their ratings under usual service conditions. 3.1 Usual service conditions Usual service conditions are - when and where the temperature
38、 of the cooling medium of air-cooled machines, ex- cluding synchronous generators driven by combustion gas turbines, included within the scope of ANSI C50.14, does not exceed 40C and is not less than 10C; - when and where the temperature of the cooling hydrogen of hydrogen-cooled ma- chines does not
39、 depart, at the rated pres- sure, from the values listed in ANSI C50.13 or C50.15; - where the altitude, for air-cooled ma- chines, does not exceed 3300 ft (1000 m); - where the pressure of hydrogen-cooled machines, when operating at altitudes above 3300 ft (1000 m), is maintained at the same absolu
40、te internal pressure as that required for operation at sea level. 3.2 Unusual service conditions Unusual service conditions should be brought to the attention of those responsible for the design, manufacture, application, and opera- tion of the machines. Among such unusual conditions are - Exposure
41、to: - abrasive or conducting dust; - chemical fumes; - combustible dust; - dusts of explosives; - flammable gases; - lint; - nuclear radiation; - oll vapor; - salt air; - steam. - operation in pits, entirely enclosed boxes, poorly ventilated rooms, damp or very dry places; - operation at speeds othe
42、r than rated. (This excludes normal overspeed tests.); - exposure to ambient temperatures above 40C or below 10C (air-cooled machines, excluding synchronous generators driven by combustion-gas turbines included within the scope of ANSI C50.14); - exposure to cooling media where the temperature value
43、s depart from those listed in ANSI C50.13, C50.14, or C50.15; - exposure to abnormal shock or vibra- tion; - where departure from rated voltage, or frequency, or both, exceed limits given in ANSI C50.13, C50.14 or C50.15; - where the phase voltages, or currents, or both, are unbalanced, and the amou
44、nt of current unbalance exceeds the limits given in ANSI C50.13 for cylindrical-rotor syn- chronous generators; ANSI C50.14 for com- bustion-gas-turbine-driven, cylindrical-rotor synchronous generators; or ANSI C50.15 for hydrogen-cooled, combustion-gas-tur- bine-driven, cylindrical-rotor synchronou
45、s generators; Available from the National Electrical Manufacturers Association, 21 O1 L Street, NW, Washington, DC 20037. 2 -,-,- . . - - where low noise levels are required; - exposure to external mechanical loads involving thrust or overhang; - subject to operation in an inclined posi- tion; - sub
46、ject to intermittent, periodic, or vary- ing duty; - operation above 3300 ft (1000 m). 4 Rating 4.1 Output rating The output rating of a machine shall consist of the kVA (kilovolt-ampere) or horsepower to- gether with any other characteristics, such as speed, voltage, frequency, current, power fac-
47、tor, and hydrogen pressure assigned to it by the manufacturer. The characteristics apply- ing to output rating of a specific type of syn- chronous machine are given in ANSI C50.12, C50.13, C50.14, and C50.15. 4.2 Continuous output rating The continuous output rating defines the load that can be carr
48、ied for an indefinitely long time in accordance with this standard. 4.3 Contlnuous output rating implied In the absence of any specification as to the kind of rating, the continuous output rating shall be implied. 4.4 capability Capability of a synchronous machine is the highest acceptable continuous loading (kVA) through the full range of power factor at a specified condition. 4.5 Frequency The standard frequency shall be 60 Hz. 0724350 0029943 B W - ANSI C50.10-1990 5 Temperature 5.1 Methods of temperature determina- tion*) 3