施耐德VISAX

VISAXMetal-cladswitchgearupto24kVMediumVoltageDistributionCatalogueI2013MakethemostofyourenergySM3ContentsGeneralpresentation3Productdescription4Standards&Operatingconditions9Technicalcharacteristics10Rangeoffunctions15Equipmentoffunction16Dimensions&weight18InstallationLayout-cubicle19Internalarccontainment20Layout-cable22Connections23Fixingmode24Accessories25Visax4Visax5GeneralpresentationVISAXisafactoryprefabricatedairinsulatedsystem,«Smartfixedpatternswitchgear»simplifiedversionoftheVISAXrange,cubicletypeaccordingtotheI.E.C.recommendation.VISAXiswelldesignedformiddleratingsM.V.utilitiesorindustrialnetworksapplications.VISAXfunctionscanbeassembledwiththoseofbasicVISAXrange.Thissmartswitchgearcoversratingsas:■Voltagerange12,17.5and24kV■Ratedcurrentupto2500A(busbarandcouplingfuctionupto2500A)■Ratedshortcircuitcurrentupto25kA■Ratedpeakwithstandcurrentupto63kA■Internalarccontainmentupto25kAfor1s.ReliabledesignVISAXisofsimplebutrobustconstructionusingpre-galvanisedmetalsheetsincreasingthecorrosionresistance.Thefrontandendpanelsarepaintedinlightbeigecolour(RAL9003)andtheoperatingareainblue(RAL5023).VISAXprovidesthemainfunctionsofwithdrawableswitchgear(incoming/outgoinganddirectincoming)butinasimplifiedandthereforemorereliabledesign.VISAXisfittedwitha“BLV”rotatingisolatorCircuitBreakermoduleusingthelatestgenerationofvacuuminterrupter.Thestandarddooriswithhingesandcanbeboltedasanoption.Moderndigitalcontrol&monitoringunitanddigitalcontrolrelaysbringahighuser-friendlyinterface,enablingsimplicityinoperationandflexibilityintheconfigurationofthesystem.Thisoriginalconceptmeetsthemoststringentrequirementinthepersonnelsafety,easeofinstallationandoperationasdescribed:PersonnelsafetyVISAXisdesignedtobeoperatedinsafetyfromthefrontwithdoorsandcoverclosed.AstraightforwardMMIshowsveryreliablythestatusofthedisconnectormoduleandearthingswitchasthecorrespondingindicatorsareaarepartoftheCircuitBreakerdisconnectorandearthingswitchthemselves,withoutanyintermediatelinkage.Thefaultmakingcapableearthingswitchisvisiblethroughthewindowofcablescompartment.Interlockspreventunsafeoperation.VisaxPM103642PM1036436ModerndesignVISAXisbasedonanewarchitecturewhereallthemainelementsarearrangedinadirectlinefromthecablestothebusbar,sothatthenumberofconnectionandisolatingcomponentsisoptimalreduced.VISAXiscomposedofmetalliccompartmentsandfittedwithasingleductlocatedattherearoftheunittochannelthegasesofthecompartmentscables,circuitbreakerandbusbar,intheeventofinternalarcing.ProductdescriptionLateralcross-sectionofVISAXswitchgear.1Lowvoltagecompartment2Busbarcompartment3Circuitbreakercompartment4Rearcompartmentfortheextractionofhotgases5Multifunctionalbushing6Cablecompartment124563GeneralpresentationDM1029247Cablecompartment.ProductdescriptionControl&communicationcompartmentAllthefunctionsofsecondaryvoltagecircuitsaregatheredinthiscompartment;thefrontofthedoorsupportsthedigitalprotectionandmeasurementrelaysandthecontrol&monitoringunit.BusbarcompartmentThebusbarislocatedintheupperofthecubicleandcanbereachedfromthetop.Spoutsformingbarriersbetweenthebarsandtheciruit-breakercompartmentsupportit.Flatcopperbarsformthebusbar;thesectionisdependingoftheratedcurrent.CircuitbreakercompartmentThekeycomponentofVISAXisa«BLV»vacuumCircuitBreakerthatisincorporatedinarotaryisolatormodule.Vacuuminterruptersaresetinpoleslongitudinallyonacentralmetallicsupport.Thissupportcontainsalsotheoperatingmechanismwhichcomprisesonlyoneshaftforthe3polesactuatedby1spiralspringstoringtheenergyneededforfastoperationcycle.Bothcircuit-breakerandoperatingmechanismrotatetogethertoreachthefollowingpositions:Serviceposition;Disconnectedposition;Removedposition.CablecompartmentThiscompartmentisaccessiblefromthefrontafterremovingaboltedcover,fittedwithaninspectionwindowtocheckthepositionoftheearthing-switch.Ontherighthandsideofthecovertheaccessareatooperatetheearthingswitch,itsmimicdiagramandthevoltageindicatorsarelocated.Themaincomponentsofthiscompartmentare:■Barsconnectionmodulebeingmechanicalsupportforboththecableterminationsandthefixedconnectionsofthecircuitbreaker.■Afullmakingcapacityearthing-switch.Circuitbreakercompartment.Busbarcompartment.LowVoltagecompartment.1263GeneralpresentationPM103644PM103645PM103646PM1036478ProductdescriptionEaseofinstallationandoperationWithasmallfootprintVISAXScanbeeasilyinstalledinsmallareas;Allcompartmentsareaccessiblefromthefrontandalloperationsarecarriedoutfromthefrontface,soVISAXScanbemountedbacktowall,reducingtheneededspace.Allinformationfortheoperationoftheswitchgearislaidoutergonomicallyandisgroupedonthefrontfaceinthesamearea.TheoperatinginterfaceisdistinguishedinbluecolouronthedoorfortheCircuitBreakerandattherightofthecablescoverfortheearthing-switch.Operationtoplug-inorplug-outtheisolatorCircuitBreakermoduleisperformedbyusinganisolatingcrankhandle.CloseoropentheCircuitBreakercanbeperformeddirectlyviapushbuttonsontheCircuitBreakerdoor.Operatingcanalsobeperformedwiththedigitalcontrolunit,whichalsoshowsalightedmimicdiagramandhelpswithmessages.Statusoft