IEEE 43-2000 - IEEE Recommended Practice for Testing Insulation Resistance of Rotating Machinery.pdf

1、Recognized as anAmerican National Standard (ANSI)The Institute of Electrical and Electronics Engineers, Inc.3 Park Avenue, New York, NY 10016-5997, USACopyright 2000 by the Institute of Electrical and Electronics Engineers, Inc.All rights reserved. Published 24 March 2000. Printed in the United Stat

2、es of America.Print: ISBN 0-7381-1924-5 SH94806PDF: ISBN 0-7381-1925-3 SS94806No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written per-mission of the publisher.IEEE Std 43-2000(R2006)(Revision ofIEEE Std 43-1974)IEEE Rec

3、ommended Practice for Testing Insulation Resistance of Rotating MachinerySponsorElectric Machinery Committeeof theIEEE Power Engineering SocietyApproved 12 October 2000American National Standards InstituteReaffirmed 30 March 2006Approved 6 March 2000IEEE-SA Standards BoardAbstract: This document des

4、cribes the recommended procedure for measuring insulation resistance ofarmature and field windings in rotating machines rated 1 hp, 750 W or greater. It applies to synchronousmachines, induction machines, dc machines, and synchronous condensers. Contained within thisdocumentis the general theory of

5、insulation resistance (IR) and polarization index (P.I.), as well as factorsaffectingthe results,test procedures, methods of interpretation, test limitations, and recommendedminimum values. Keywords: absorption current, conduction current, discharge current, geometric capacitive current,insulation r

6、esistance, polarization index, surface leakage current IEEE Standardsdocuments are developed within the IEEE Societies and the Standards Coordinating Com-mittees of the IEEE Standards Association (IEEE-SA) Standards Board. Members of the committees servevoluntarily and without compensation. They are

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17、n is called to the 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

18、 for identifying 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. Copyright 2000 IEEE. All rights reserved.iiiIntroduction(This introduction is not part of IEEE Std 43-2000,

19、IEEE Recommended Practice for Testing Insulation Resistance ofRotating Machinery.)Insulation resistance measurement has been recommended and used for more than half a century to evaluatethe condition of electrical insulation. Whereas individual insulation resistance measurements may be ofquestionabl

20、e value, the carefully maintained record of periodic measurements, accumulated over months andyears of service, is of unquestioned value as a measure of some aspects of the condition of the electricalinsulation. Originally, in 1950, this recommended practice was published by the AIEE as a guide to p

21、resentthe various facets associated with the measurement and understanding of electrical insulation resistance. Theguide was revised in 1961 and again in 1974. During the 1970s, several changes were made to the types ofinsulation used in electric rotating machines. The insulation resistance characte

22、ristics of these newer insula-tion systems are different from the older systems, and therefore required this substantial revision to the stan-dard for measuring insulation resistance. Other changes include the addition of further description of thetesting theory and the removal of suggestions regard

23、ing maintenance dry-out procedures for older windings(previously Annex A). Recommendations for maintenance procedures are beyond the scope of this docu-ment. With this publication as a recommended practice, the IEEE is presenting and recommending electricalinsulation resistance measurement as an imp

24、ortant factor in monitoring the condition of electrical insulationin rotating machinery.This recommended practice describes the theory, procedure, and interpretation of the insulation resistancetest. It is intended for the following: Individuals or organizations who manufacture rotating machines Ind

25、ividuals or organizations who are responsible for the acceptance of new rotating machines Individuals or organizations who test and maintain rotating machines Individuals or organizations who operate rotating machinesThis recommended practice is designed to help organizations and individuals Evaluat

26、e the condition of the electrical insulation used in rotating machines Determine if the electrical insulation of a rotating machine is suitable for return-to-service Determine if the electrical insulation of a rotating machine is suitable for high-potential testingThis recommended practice is intend

27、ed to satisfy the following objectives:a) Promote consistency for insulation test procedures and interpretationsb) Provide useful information on proper application of the insulation resistance testc) Provide useful information on the technical theory of insulation resistance testingThe revision to t

28、his recommended practice was prepared by a working group of the Materials Subcommitteeof the Electric Machinery Committee of the IEEE Power Engineering Society. Working group personnelwereVicki Warren, Chair*Chair EmeritusWilliam BartleyThomas BishopRobert DraperGuanzhong GaoTrilok C. GargJames Gran

29、tGary GriffithGary HeustonAlan M. IversonKen JacksonWayne JohnsonChaman L. KaulWalter MartinyWilliam McDermidCharles MilletBeant NindraMadan RanaLarry RodlandDavid SchumpSusan SoergelGreg C. StoneGeorge StranovskyChuck WilsonJohn WilsonDaniel I. Young* ivCopyright 2000 IEEE. All rights reserved.The

30、following members of the balloting committee voted on this recommended practice:The final conditions for approval of this standard were met on 6 March 2000. This standard was condition-ally approved by the IEEE-SA Standards Board on 30 January 2000, with the following membership:Richard J. Holleman,

31、ChairDonald N. Heirman,Vice ChairJudith Gorman,Secretary*Member EmeritusAlso included is the following nonvoting IEEE-SA Standards Board liaison:Robert E. HebnerNoelle D. HumenickIEEE Standards Project EditorVaino AareEdwin AverillRoy L. BalkeWilliam H. BartleyKevin D. BeckerKarl W. BergerThomas H.

32、BishopPaul G. CummingsPaul L. DandenoJames H. DymondJames S. EdmondsFranklin T. EmeryJorge Fernandez-DaherGuanzhong GaoTrilok C. GargNirmal K. GhaiBrian E. B. GottJames GrantFranklin H. GroomsBal K. GuptaHoward B. HamiltonThomas J. HammonsRichard A. HuberAlan M. IversenChaman L. KaulRigsby Kavanaugh

33、Tim KeckStephen B. KuznetsovPeter H. LandrieuWalter J. MartinyWilliam R. McCownWilliam McDermidLloyd McSparranEdward J. MichaelsJ. R. MichalecCharles MilletGerhard J. NeidhoeferNils E. NilssonBeant S. NindraJ. L. OldenkampJames A. OliverWilliam B. PennMadan RanaRobert H. RehderLaurence RodlandCharle

34、s M. RoweDavid E. SchumpManoj R. ShahJohn SheaJan SteinKen StenroosGreg C. StoneJames E. TimperleyPaul VollmarPaul Dieter WagnerVicki WarrenRichard F. WeddletonCharles A. WilsonJohn WilsonEdward J. WoodsDaniel I. YoungMartin ZgraggenSatish K. AggarwalDennis BodsonMark D. BowmanJames T. CarloGary R.

35、EngmannHarold E. EpsteinJay Forster*Ruben D. GarzonJames H. GurneyLowell G. JohnsonRobert J. KennellyE. G. “Al” KienerJoseph L. Koepfinger*L. Bruce McClungDaleep C. MohlaRobert F. MunznerLouis-Franois PauRonald C. PetersenGerald H. PetersonJohn B. PoseyGary S. RobinsonAkio TojoHans E. WeinrichDonald

36、 W. Zipse Copyright 2000 IEEE. All rights reserved.vContents1. Overview. 11.1 Scope. 11.2 Purpose. 12. References. 23. Definitions. 34. Safety considerations . 35. Insulation resistancegeneral theory. 45.1 Components of the measured direct current . 45.2 Characteristics of the measured direct curren

37、t. 65.3 Insulation resistance readings . 65.4 Polarization index readings. 75.5 Discharge current. 86. Factors affecting insulation resistance. 86.1 Effect of surface condition. 86.2 Effect of moisture . 96.3 Effect of temperature . 96.4 Effect of test voltage magnitude . 116.5 Effect of existing ch

38、arge on winding resistance measurements . 127. Conditions for measuring insulation resistance . 128. Winding connections for insulation resistance tests . 129. Methods of measuring insulation resistance. 139.1 Direct measurement . 139.2 Calculated measurement . 1310. Precautions. 1311. Interpretatio

39、n of insulation resistance and polarization index test results . 1411.1 Monitoring insulation condition . 1411.2 Suitability for operation or continued testing . 1411.3 Limitations of the insulation resistance test.1512. Recommended minimum value of polarization index and insulation resistance. 1512.1 Minimum values . 1512.2 Polarization index . 1512.3 Insulation resistance.