IEC/IEEE61850-9-3Edition1.02016-05INTERNATIONALSTANDARDCommunicationnetworksandsystemsforpowerutilityautomation–Part9-3:PrecisiontimeprotocolprofileforpowerutilityautomationIEC/IEEE61850-9-3:2016-05(en)®THISPUBLICATIONISCOPYRIGHTPROTECTEDCopyright©2016IEC,Geneva,SwitzerlandCopyright©2016IEEEAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingbeingsecured.RequestsforpermissiontoreproduceshouldbeaddressedtoeitherIECattheaddressbeloworIEC’smemberNationalCommitteeinthecountryoftherequesterorfromIEEE.IECCentralOfficeInstituteofElectricalandElectronicsEngineers,Inc.3,ruedeVarembé3ParkAvenueCH-1211Geneva20NewYork,NY10016-5997SwitzerlandUnitedStatesofAmericaTel.:+41229190211stds.ipr@ieee.orgFax:+41229190300www.ieee.orginfo@iec.chwww.iec.chAbouttheIECTheInternationalElectrotechnicalCommission(IEC)istheleadingglobalorganizationthatpreparesandpublishesInternationalStandardsforallelectrical,electronicandrelatedtechnologies.AbouttheIEEEIEEEistheworld’slargestprofessionalassociationdedicatedtoadvancingtechnologicalinnovationandexcellenceforthebenefitofhumanity.IEEEanditsmembersinspireaglobalcommunitythroughitshighlycitedpublications,conferences,technologystandards,andprofessionalandeducationalactivities.AboutIEC/IEEEpublicationsThetechnicalcontentofIEC/IEEEpublicationsiskeptunderconstantreviewbytheIECandIEEE.Pleasemakesurethatyouhavethelatestedition,acorrigendumoranamendmentmighthavebeenpublished.IECCatalogue-webstore.iec.ch/catalogueThestand-aloneapplicationforconsultingtheentirebibliographicalinformationonIECInternationalStandards,TechnicalSpecifications,TechnicalReportsandotherdocuments.AvailableforPC,MacOS,AndroidTabletsandiPad.IECpublicationssearch-www.iec.ch/searchpubTheadvancedsearchenablestofindIECpublicationsbyavarietyofcriteria(referencenumber,text,technicalcommittee,…).Italsogivesinformationonprojects,replacedandwith...