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UPSistheabbreviationforUninterruptiblePowerSupply,andisadevicewhichsuppliespowertodevicesforafixedamountoftimewithoutstoppingevenwhen thereareproblemsoccurringwithutilitypowerandotherpowersourcesAnuninterruptiblepowersystem(UPS)isthecentralcomponentofanywell-designed powerprotectionarchitectureAUPScanhelppreventpowersupplyproblemsthatcanoftenoccuronaproductionsite,suchasaninstantaneousvoltagedrop andapowerfailureOfflineUPSWorkingPrincipleThiswhitepaperprovidesanintroductoryoverviewofwhataUPSisandwhatkindsofUPSareavailable,as wellasacomprehensiveguidetoselectingtherightUPSandaccessoriesforyourneedsIntroductionUPSWorkinginNormalMode:WhentheMainsare normal,theUPSpowerstheloadthroughtherectifierandinverterandchargesthebatteriesatthesametime,asshownintheabovefigureIntroductionMany UPSmodelscontinuallyconditionincomingpoweraswellItpreventsdatalossandcorruptionPowerPlantUPSPrincipleofOperationandWorkingModes: UninterruptedPowerSupplyUPSoperatesinthefollowingmodesbasedonthetypeofsupplyavailable.AUPSperformsthefollowingthreebasicfunctionsIt preventshardwaredamagetypicallycausedbysurgesandspikes.UsethisverybasicproceduretodeterminetheapproximateUPSratingyourSectionIncludes: TheworkspecifiedinthisSectionincludes,butshallnotbelimitedto,athree-phase,continuousduty,solidstateUPSTheUPSshallcontainafullratedinput UninterruptiblePowerSupplyWorkingUPSTopologiesFromplugandreceptaclechartsandfactsaboutpowerproblemstoanUPSsareavailablewithratings aslowasVAandashighas5,,VAormore2eatoncorporationUPSHandbook,EMEAversionUPSHandbookTheOfflineUPSisthesimplestoneofall typesUPSsareavailablewithratingsaslowasVAandashighas5,,VAIntroductionThesizeanddesignofaUPSdeterminehowlongitwillsupplypower ThebatteryisusedtofeedDCpowertotheinverter;forconvertingittoACsupplyIngeneral,aUPSprotectsITequipmentandotherelectricalloadsfrom problemsthatplagueourelectricalsupply.WelcometotheEatonUPSandPowerManagementFundamentalsHandbook.AUPSallowsforthesafe,orderly shutdownofacomputerandconnectedequipmentFigureshowstheprinciplesofoperationofanelectronicUPSSingleorthree-phasepowerisobtainedfrom thepowersystemandisTheUPSsystemshouldhavethefollowingidealfeaturesRegulatedsinusoidaloutputwithtotalharmonicdistortion(TDH)isindependent ofthechangesinloadorinputvoltage,WorkingPrincipleofaUpsSystemFreedownloadasWordDocdoc/docx),PDFFilepdf),TextFiletxt)orreadonline forfreeAUPS,orauninterruptiblepowersupply,isadeviceusedtobackupapowersupplytopreventdevicesandsystemsfrompowersupplyproblems,such asapowerfailureorlightningstrikesThiscomprehensiveguideincludesalltheinformationthatresellersneedtohelpthemunderstandandsellAUPS’spower ratingistheamountofload,involt-amperes(VA),thatit’sdesignedtosupportAsyoucansee,theloadisnormallysuppliedpowerfrommainsACsupplyFrom plugandreceptaclechartsandfactsaboutpowerproblemstoanoverviewofvariousUPStopologiesandfactorsaffectingbatterylife,you’llfindawealthof pertinentresourcesdesignedtohelpyoudeveloptheoptimumsolutionAnuninterruptiblepowersupply(UPS),alsoknownasabatterybackup,providesbackup powerwhenyourregularpowersourcefailsorvoltagedropstoanunacceptablelevelTheACsupplyisalsousedtochargethebatterybankWelcometothe EatonUPSandPowerManagementFundamentalsHandbook