The purpose of impact test of power transformer before commissioning
New put into operation of the transformer, in addition to the handover test standards to do some necessary tests and protection, quadratic surface test, before the formal input, usually have to do the no-load full voltage switching impact test.
Structure of Power Transformer
StructureofPowerTransformer Powertransformerismainlycomposedofmagneticcoreandconductivecoil.Thecoilandironcoreareinstalledintheoiltankfilledwithtransformeroil,andtheendofthecoilisledtotheoutsideofth
What are the causes of transformer leakage?
Leakageoftransformersisacommonproblemintransformerfaults.Inparticular,sometransformersthathavebeeninoperationforalongtimearemorecommon.Theappearanceoflightpollutionequipmentisbeautiful,andtheheavyequipmentthreatensthesafeoperationofequipmentandeventhelifeofpersonnel.Leakageoftransformersincludesairinandout(Normallyexceptfortheairenteringthedehumidifier)andoilleakage.So,whatarethecausesoftransformerleakage?Todayweexplainindetailthecausesoftransformerleakage. Therearetwomainreasonsfortheleakage:ontheonehand,itislatentinthetransformerdesignandmanufacturingprocess;ontheotherhand,itiscausedbyimproperinstallationandmaintenanceofthetransformer.Themainleakagepartsofthetransformeroftenappearinradiatorinterfaces,flatdiscvalvehats,casings,porcelainbottles,welds,sandholes,flangesandotherparts.
What is the prospect of the variable frequency power supply market?
Sincethepromulgationofthe12thFive-YearPlan,energyconservationandemissionreductionhavebecomethekeytothedevelopmentofvariousindustries,constantlyregulatingvariousenergy-savingandenvironmentallyfriendlyproducts,makingtheapplicationoftheindustrymoreextensiveandtheprospectsclearer. Benefitingfromthestrategyofenergysaving,greeningandenvironmentalprotection,thesustainabledevelopmentofChina'svariablefrequencypowersupplyindustryhasbeenaccelerated,makingChina'svariablefrequencypowersupplyindustrycontinuetoexpandthemarketshareoftheindustry,andrelyingonstrongdevelopmenttobecomeanimportantpartofChina'sindustrialeconomicdevelopment.basepoint. Atpresent,Chinaisinthestageofacceleratingindustrializationandurbanization.Theshortageofenergyresourcesandthefragileecologicalenvironmentwillbefurtheraggravated.Therefore,thelevelofenergy-savingandenvironmentalprotectiontechnologyequipmentandservicesinChinawillbecontinuouslyimproved,andlarge-scaleenergy-savingemissionreductionandvigorousdevelopmentcyclewillbecarriedout.ProvidingsolidindustrialsupportisaninevitablechoiceforChinatochangeitsdevelopmentmodeandadjustitseconomicstructure. Fromthisperspective,China'senergy-savingandenvironmentalprotectionindustryhasgreatpotentialandstimulatesbroadprospectsforeconomicgrowth.China'svariablefrequencypowersupplymarketiscurrentlyinaperiodofrapidgrowth,andiswidelyusedintextilemachinery,airconditioning,elevators,metallurgyandotherindustries.Inthepastfewyears,themarketofChineseinvertershasmaintainedahighgrowthrate. Inrecentyears,China'svariablefrequencypowersupplymarketismaintainingagrowthrateof12%-15%.Itisexpectedthatwithinfiveyears,themarketdemandforvariablefrequencypowersupplywillcontinuetomaintainagrowthrateofmorethan10%.After10years,thevariablefrequencypowersupplymarketwillgraduallybecomesaturated.
