IEEE-STD-C62.92.2

RecognizedasanAmericanNationalStandard(ANSI)Copyright©1989byTheInstituteofElectricalandElectronicsEngineers,Inc.3ParkAvenue,NewYork,NY10016-5997,USANopartofthispublicationmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.IEEEStdC62.92.2™-1989(R2005)IEEEGuidefortheApplicationofNeutralGroundinginElectricalUtilitySystemsPartII-GroundingofSynchronousGeneratorSystemsSponsorSurgeProtectiveDevicesCommitteeoftheIEEEPowerEngineeringSocietyReaffirmedOctober30,2000ApprovedOctober13,1989AmericanNationalStandardsInstituteReaffirmedJune9,2005ApprovedFebruary2,1989IEEE-SAStandardsBoardAuthorizedlicenseduselimitedto:HarbinEngineeringUnivLibrary.DownloadedonMay07,2014at01:35:22UTCfromIEEEXplore.Restrictionsapply.IEEEStandardsdocumentsaredevelopedwithintheTechnicalCommitteesoftheIEEESocietiesandtheStandardsCoordinatingCommitteesoftheIEEEStandardsBoard.Membersofthecommitteesservevoluntarilyandwithoutcompensation.TheyarenotnecessarilymembersoftheInstitute.ThestandardsdevelopedwithinIEEErepresentaconsensusofthebroadexpertiseonthesubjectwithintheInstituteaswellasthoseactivitiesoutsideofIEEEwhichhaveexpressedaninterestinparticipatinginthedevelopmentofthestandard.UseofanIEEEStandardiswhollyvoluntary.TheexistenceofanIEEEStandarddoesnotimplythattherearenootherwaystoproduce,test,measure,purchase,market,orprovideothergoodsandservicesrelatedtothescopeoftheIEEEStandard.Furthermore,theviewpointexpressedatthetimeastandardisapprovedandissuedissubjecttochangebroughtaboutthroughdevelopmentsinthestateoftheartandcommentsreceivedfromusersofthestandard.EveryIEEEStandardissubjectedtoreviewatleasteveryfiveyearsforrevisionorreaffirmation.Whenadocumentismorethanfiveyearsold,andhasnotbeenreaffirmed,itisreasonabletoconcludethatitscontents,althoughstillofsomevalue,donotwhollyreflectthepresentstateoftheart.UsersarecautionedtochecktodeterminethattheyhavethelatesteditionofanyIEEEStandard.CommentsforrevisionofIEEEStandardsarewelcomefromanyinterestedparty,regardlessofmembershipaffiliationwithIEEE.Suggestionsforchangesindocumentsshouldbeintheformofaproposedchangeoftext,togetherwithappropriatesupportingcomments.Interpretations:Occasionallyquestionsmayariseregardingthemeaningofportionsofstandardsastheyrelatetospecificapplications.WhentheneedforinterpretationsisbroughttotheattentionofIEEE,theInstitutewillinitiateactiontoprepareappropriateresponses.SinceIEEEStandardsrepresentaconsensusofallconcernedinterests,itisimportanttoensurethatanyinterpretationhasalsoreceivedtheconcurrenceofabalanceofinterests.ForthisreasonIEEEandthemembersofitstechnicalcommitteesarenotabletoprovideaninstantresponsetointerpretationrequestsexceptinthosecaseswherethematterhaspreviouslyreceivedformalconsideration.Commentsonstandardsandrequestsforinterpretationsshouldbeaddressedto:Secretary,IEEEStandardsBoardP.O.Box1331445HoesLanePiscataway,NJ08855-1331USAIEEEStandardsdocumentsareadoptedbytheInstituteofElectricalandElectronicsEngineerswithoutregardtowhethertheiradoptionmayinvolvepatentsonarticles,materials,orprocesses.Suchadoptiondoesnotassumeanyliabilitytoanypatentowner,nordoesitassumeanyobligationwhatevertopartiesadoptingthestandardsdocuments.Authorizedlicenseduselimitedto:HarbinEngineeringUnivLibrary.DownloadedonMay07,2014at01:35:22UTCfromIEEEXplore.Restrictionsapply.iiiForeword(ThisForewordisnotapartofIEEEC62.92.2-1989,IEEEGuidefortheApplicationofNeutralGroundinginElectricalUtilitySystems,PartII—GroundingofSynchronousGeneratorSystems.)Thisguideisthesecondinaseriesofdocumentsonneutralgroundinginelectricutilitysystems.PartIIcoverstheconsiderationsandpracticesrelatingtothegroundingofsynchronousgeneratorsystems.Emphasisinthisguideistobedirectedtowardthegroundingofsynchronousgeneratorsystemsinelectricutilitysystems.Generatorgroundingpracticesusedinindustrialsystemsarecoveredinotherguidesandstandards.Atthetimethisguidewasapproved,theWorkingGroupforPartIIhadthefollowingmembership:S.G.Whisenant,ChairS.MazumdarW.S.OssmanG.S.HaralampuD.W.JacksonI.B.JohnsonJ.L.KoepfingerE.R.Taylor,Jr.O.NigolJ.R.DetweilerThefollowingpersonswereontheballotingcommitteethatapprovedthisdocumentforsubmissiontotheIEEEStandardsBoard:R.D.BallC.L.BallentineG.D.BreuerJ.J.BurkeJ.G.DaltonD.C.DawsonR.W.FlugumH.E.FoelkerG.L.GaibroisE.A.GoodmanR.HaasC.D.HansellG.S.HaralampuD.E.HedmanJ.A.HetrickA.R.HilemanW.W.HinesD.W.JacksonR.A.JonesS.S.KershawJ.L.KoepfingerS.KuznetsovG.E.LeeF.Lembo,Jr.D.W.LenkW.A.MaguireJ.A.MambueaE.H.Marrow,Jr.F.D.MartzloffD.J.MelvoldJ.J.NapiorkowskiO.NigolR.OdenbergJ.C.OsterhoutM.ParenteS.A.PotocnyR.RichmanE.RothongK.B.StumpL.D.SweeneyA.SweetanaD.P.SymanskiE.R.Taylor,Jr.A.C.WestromS.G.WhisenantE.J.YasudaWhentheIEEEStandardsBoardapprovedthisstandardonFebruary2,1989,ithadthefollowingmembership:DennisBodson,ChairMarcoW.Migliaro,ViceChairAndrewG.Salem,SecretaryArthurA.BlaisdellFletcherJ.BuckleyAllenL.ClappJamesM.DalyStephenR.DillonDonaldC.FleckensteinEugeneP.FogartyJayForster*ThomasL.HannanKennethD.HendrixTheodoreW.Hissey,Jr.JohnW.HorchDavidW.HutchinsFran