真空有載分接開關的研究.pdf

1、東北農業(yè)大學碩士學位論文真空有載分接開關的研究姓名：李艷軍申請學位級別：碩士專業(yè)：農業(yè)電氣化與自動化指導教師：趙玉林2002.11.1StudyofVaccumLoadTapSwitchAbstractVoltageisoneoftbeimportantqualityindexesinelectricpowersystemOncetheelectricpowersystemworkinginanunusualserviceconditi

2、onsT11evoltagefluctuationwillmaketheutilizationequipmentsabnormalwhichinfluenceonproductivityanddailylifeSovolmgeregulationisoneofthemaintasksinelectricpowersystemLoad—ratiovoltageregulationoftransformeristhevoltageregul

3、ation，whichhaslargerregulatingscopeandlessinvestmentandhigherspeedandwelleffectinpoweronconditionsTheregulatingscopeis15％ormoreItcarlalsoberegulatedinrealtime，manualactioncontrolandelectromotiveeontrolandremoteelectromot

4、ivecontr01canalsobeselectedwhichisconvenienttotherealizationofautomaticmanagementLoadtapswitchisthecentralcontrivanceinloadratiovoltageregulationoftransformerThereliabilityofthetapswitchhasbeenimprovedgreatlyItsmechanicl

5、ifehasbeenimprovedto500，000andevento1000，000timesfrom200，000initiallyItselectriclireincreased50，000timesfrom20，000ItsrelativemalfunctionratehaslesstharI1520％Theshiftcapaeityalsohasbeenimprovedcontinuallyandtheshiftwaysar

6、emoreperfectwithdaysMysubjectstudyisthevaccumtapswitchoftheloadvoltageregulationwiththedrytrsnsformerwhichhasfeaturesofsafetyreliabilityandconvenienceformaintainBecauseitWasmadeofnondestructivematerials，itwillnotbegetgar

7、bagethatdoesnotneedtobehandledspeciallyThetypeofthespecificvaccumtapswitchwhichIstudyisBPK△150—10／35—9CThistapswitchissuitablefor610kvvoltagedegreewhichmaximumcurrentratingis150Aandmaximumusablefrequencyis50HzThetransfor

8、merusethistapswitchc釩beconnectedinthreephrasefreelyBytypetestingswitchproducingandoonsumerusingitcanconcludethatthequalityofthismodelhasreacheditscriterionItwoksreliablyanditsapplicationscopeiswide111atis，itwillhavewonde

9、rfulprospectinthefutureWitllthevastamountofualngoftbevacctlmloadtapswitchthestepsthatenlargetheapplyingscopewillbequickenedanditwillbeadvantageoustotherenewalandIransformofthetraditionalstyleoftheelectricpowersystemKeywo