1、_The Institute of Electrical and Electronics Engineers, Inc.345 East 47th Street, New York, NY 10017-2394, USACopyright 1996 by the Institute of Electrical and Electronics Engineers, Inc.All rights reserved. Published 1996. Printed in the United States of America.ISBN 1-55937-582-5No part of this pu
2、blication may be reproduced in any form, in an electronic retrieval system or otherwise, without the priorwritten permission of the publisher.IEEE Std 252-1995 (R2007)(Revision of IEEE Std 252-1977)IEEE Standard Test Procedure forPolyphase Induction Motors HavingLiquid in the Magnetic GapSponsorElec
3、tric Machinery Committeeof theIEEE Power Engineering SocietyReaffirmed 26 September 2007Approved 21 September 1995IEEE-SA Standards BoardAbstract: Instructions for conducting and reporting the more generally applicable and acceptabletests to determine the performance characteristics of polyphase ind
4、uction motors having liquid inthe magnetic gap are given. Constants in several equations and form apply to three-phase motorsonly and require modification for application to motors having another number of phases. It is notintended that the procedure cover all possible tests or tests of a research n
5、ature. The procedureshall not be interpreted as requiring the making of any or all of the tests described herein in anygiven transaction.Keywords: liquid in the magnetic gap, polyphase induction motor, test procedures, three-phasemotorIEEE Standardsdocuments are developed within the Technical Commit
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15、ease contactCopyright Clearance Center, Customer Service, 222 Rosewood Drive, Danvers, MA 01923 USA;(508) 750-8400. Permission to photocopy portions of any individual standard for educational class-room use can also be obtained through the Copyright Clearance Center.Note: Attention is called to the
16、possibility that implementation of this standard mayrequire use of subject matter covered by patent rights. By publication of this standard,no position is taken with respect to the existence or validity of any patent rights inconnection therewith. The IEEE shall not be responsible for identifying al
17、l patents forwhich a license may be required by an IEEE standard or for conducting inquiries intothe legal validity or scope of those patents that are brought to its attention.iiiIntroduction(This introduction is not part of IEEE Std 252-1995, IEEE Standard Test Procedure for Polyphase Induction Mot
18、orsHaving Liquid in the Magnetic Gap.)In recent years, induction motors have found increasing usage in applications where the rotor operates in aliquid environment. Frequent applications include driving pumps in primary coolant loops in nuclearreactors, in boiler forced circulating systems, and in d
19、eep well pumping. From the viewpoint of testing andtest procedures, motors designed for these applications differ from more conventional motors principally inhaving additional loss due to circulating currents in the metallic barriers in the air gap, in having higherfriction loss, and in reduced acce
20、ssibility to the windings and rotating parts. Because of these differences andthe increasing usage of such motors, the Induction Machinery Subcommittee of the Rotating MachineryCommittee undertook the preparation of this test procedure, which was derived from AIEE Std 500 (nowIEEE Std 112-1991, IEEE
21、 Standard Test Procedure for Polyphase Induction Motors and Generators).The Institute wishes to acknowledge its indebtedness to those who have so freely given of their time andknowledge, and have conducted experimental work on which many of the IEEE publications are based.At the time this test proce
22、dure was originally approved, a working group of the Induction Machinery Sub-committee of the Electric Machinery Committee had the following membership:R. G. Rhudy,ChairThis test procedure was revised in 1977 by a working group composed of the following:R. M. Matsko,ChairThis test procedure was revi
23、sed in 1995 by a working group composed of the following:N. E. Nilsson,ChairThe following persons were on the balloting committee:F. W. BrandtL. E. DonelanIrwin RoweJ. A. RundellE. J. SchaeferJ. G. WilhiteL. E. Donelan E. J. MichaelsR.W. SchafferJ. G. WilhiteN. K. Ghai B. K. Gupta S. B. KuznetsovJ.
24、C. AndreasPeter BaldassariL. W. BuchananStanley S. BurnsDouglas H. CashmoreChing Chuen ChanMichael J. CostelloJack L. CraggsJan A. DeKockP. DiamantSteve EiringAhmed El-AntablyDale R. FarruggiaPaul C. GabersonNirmal K. GhaiFranklin H. GroomsRobert J. HarringtonM. Harry HesseThomas A. HigginsWayne E.
25、JohnsonH. E. JordanJames Glen KarolyiJames L. Kirtley, Jr.E. A. KlingshirnStephen B. KuznetsovSian H. LieThomas A. LipoF. A. LotteWalter J. MartinyNigel P. McQuinEdward J. MichaelsJames R. MichalecNils E. NilssonP. I. NippesDonald W. NovotnyChee-Mun OngE. L. OwenMichel PoloujadoffM. Azizur RahmanRic
26、hard SchiferlA. M. SharafDharmendra K. SharmaJan SteinStefan M. StoinaElias G. StrangasBarna SzabadosS. P. VermaLarry WallLongya XuJ. W. YorkivWhen the IEEE Standards Board approved this standard on September 21, 1995, it had the followingmembership:E. G. “Al” Kiener,ChairDonald C. Loughry,Vice Chai
27、rAndrew G. Salem,Secretary*Member EmeritusAlso included are the following nonvoting IEEE Standards Board liaisons:Satish K. AggarwalRichard B. EngelmanRobert E. HebnerChester C. TaylorAngela M. GirardiIEEE Standards Project EditorGilles A. BarilClyde R. CampJoseph A. CannatelliStephen L. DiamondHaro
28、ld E. EpsteinDonald C. FleckensteinJay Forster*Donald N. HeirmanRichard J. HollemanJim IsaakBen C. JohnsonSonny KasturiLorraine C. KevraIvor N. KnightJoseph L. Koepfinger*D. N. “Jim” LogothetisL. Bruce McClungMarco W. MigliaroMary Lou PadgettJohn W. PopeArthur K. ReillyGary S. RobinsonIngo RuschChee
29、 Kiow TanLeonard L. TrippHoward L. WolfmanvContentsCLAUSE PAGE1. Scope 12. References 13. General. 23.1 Kinds of tests 23.2 Choice of test . 23.3 Cautions . 24. Electrical measurements 24.1 General. 24.2 Power supply 24.3 Instrument selection. 24.4 Instrument transformers. 34.5 Voltage. 34.6 Current
30、 . 34.7 Power . 35. Performance determination 35.1 Temperature . 35.2 Pressure 35.3 Efficiency. 35.4 Losses. 65.5 Slip . 75.6 Power factor. 75.7 Tests with no load 85.8 Tests with load . 95.9 Tests with locked rotor. 105.10 Tests for stray-load loss . 105.11 Tests for speedtorque and speedcurrent. 1
31、26. Temperature test. 136.1 Purpose. 136.2 General. 136.3 Methods of temperature measurements . 136.4 Measurement of ambient and external coolant temperatures 146.5 Procedure . 146.6 Temperature rise 157. Miscellaneous tests 157.1 Insulation resistance. 157.2 Dielectric tests 167.3 Resistance measur
32、ements. 167.4 Noise 167.5 Vibration 16ANNEX A (normative) Forms. 17 1IEEE Standard Test Procedure for Polyphase Induction Motors Having Liquid in the Magnetic Gap1. ScopeThis test procedure covers instructions for conducting and reporting the more generally applicable andacceptable tests to determin
33、e the performance characteristics of polyphase induction motors having liquid inthe magnetic gap. Constants in several equations and forms apply to three-phase motors only and requiremodification for application to motors having another number of phases. It is not intended that the procedurecover al
34、l possible tests or tests of a research nature. The procedure shall not be interpreted as requiring themaking of any or all of the tests described herein in any given transaction.Test report forms are provided with this standard. For the convenience of the user, they are organized into anormative an
35、nex.2. ReferencesThis standard shall be used in conjunction with the following references:IEEE Std 4-1995, IEEE Standard Techniques for High-Voltage Testing (ANSI).1IEEE Std 43-1974 (Reaff 1991), IEEE Recommended Practice for Testing Insulation Resistance of RotatingMachinery (ANSI).IEEE Std 85-1973
36、 (Reaff 1986), IEEE Standard Test Procedure for Airborne Sound Measurements onRotating Electric Machinery (ANSI).IEEE Std 112-1991, IEEE Standard Test Procedure for Polyphase Induction Motors and Generators (ANSI).IEEE Std 118-1978 (Reaff 1992), IEEE Standard Test Code for Resistance Measurements (A
37、NSI).IEEE Std 119-1974, IEEE Recommended Practice for General Principles of Temperature Measurement asApplied to Electrical Apparatus.2IEEE Std 120-1989, IEEE Master Test Guide for Electrical Measurements in Power Circuits (ANSI).1IEEE publications are available from the Institute of Electrical and
38、Electronics Engineers, 445 Hoes Lane, P.O. Box 1331, Piscataway,NJ 08855-1331, USA.2IEEE Std 119-1974 has been withdrawn; however, copies can be obtained from Global Engineering, 15 Inverness Way East, Engle-wood, CO 80112-5704, USA, tel. (303) 792-2181.IEEE Std 252-1995 IEEE STANDARD TEST PROCEDURE
39、 FOR POLYPHASE INDUCTION23. General3.1 Kinds of testsThese motors are normally given either a routine test or a complete test.3.1.1 Routine testThe routine test includes measurement of speed, power input, and current input at no load, rated voltage andfrequency; power input and current input with lo
40、cked rotor; and, winding resistance, insulation resistance,and dielectric test. The locked rotor test may also be performed with single-phase power applied to themotor. Form 1 may be used for reporting such data.3.1.2 Complete testThe complete test includes a routine test plus additional tests neces
41、sary to determine efficiency, power factor,starting torque, breakdown torque, rated-load slip, and rated-load temperature rise.Form 2 may be used for reporting such data. Additional tests, such as measurement of noise, vibration, andspeed-torque characteristics that are described in this test proced
42、ure, and other tests, such as measurement ofshaft currents that are not covered in this test procedure, may be used.3.2 Choice of testA complete list of tests covered by this procedure is given in the contents. Alternate methods are describedfor making many of the tests. In some cases the preferred
43、method is indicated.3.3 CautionsMany IEEE and ANSI standards are referenced in this document. The standards referenced will be those ineffect when this revision is approved. Users are cautioned to carefully review the history of old machineswith respect to IEEE and ANSI standards in effect at the ti
44、me when they were manufactured.4. Electrical measurements4.1 GeneralElectrical measurements shall be made in accordance with IEEE Std 120-1989.34.2 Power supplyThe supply voltage shall closely approach sine-wave form and shall provide balanced phase voltages. Thevoltage waveform deviation shall not
45、exceed 10%. The frequency shall be closely regulated and shall bemeasured within an accuracy of 0.1% of rated value.4.3 Instrument selectionThe instruments used in electrical measurements shall be selected to give indications well up on the scale,i.e., where a fraction of a division is easily estima
46、ted and where such a fraction is a small percentage of thevalue read. The indicating instruments shall bear record of calibration within 12 months of the test, indicat-ing limits of error no greater than 0.5% of full scale. 3Information about references can be found in clause 2.IEEEMOTORS HAVING LIQ
47、UID IN THE MAGNETIC GAP Std 252-199534.4 Instrument transformersWhen current and voltage instrument transformers are used, corrections shall be made for ratio errors involtage and current measurements and for ratio and phase-angle errors in power measurements. The errorsof the instrument transformer
48、s shall not be greater than 0.5%.4.5 VoltageThe phase voltages shall be read at the motor terminals. The arithmetic average of the root-mean-squarephase voltages shall be used in calculating machine characteristics.4.6 CurrentThe line currents to each phase shall be measured. The arithmetic average
49、of the root-mean-square linecurrents shall be used in calculating machine characteristics.4.7 PowerThe average power input to a three-phase machine shall be measured by three single-phase wattmetersconnected in Y as in the three-wattmeter method, or by two single-phase wattmeters connected as in the two-wattmeter method, or by a single polyphase wattmeter. Correction shall be made for instrument losses.5. Performance determination45.1 TemperaturePrecautions shall be taken that the internal coolant approximates the design temperature. All performancedeterminatio
