02国家电网公司英语考试实用教程短文判断题2014校对版

1电力职称英语短文判断PassageIFeatureofpowergeneration发电特性——P43Thesimultaneousnessoftheelectricpowergenerationmeansthattheelectricpowergeneration,transmission,transformation,distributionandutilizationmustbeperformedatthesameinstant.Theelectricpowercan'tbestored.Therefore,thebalancemustbekeptatanytimeduringtheelectricpowergeneration,distribution,andutilization.Theelectricpowersystemconsistsofpowerplants,transmissionnetworks,distributionnetworksandtheconsumer'selectricutilizationequipment.Theunificationofpowersystemequipmentmeansthatthegenerationequipments,transformationequipments,transmissionlines,distributionlinesandpowerutilizationequipmentofapowersystemformanundividedinteger.Withoutanyofthem,thepowernetworkcanyouoperatenormally.Thetransmissionlineconnectingtwopowernetworksiscalledlinkline.Someelectricpowersystemsaremutuallyconnectedbytransmissionlinestorealizepowerexchangebetweenthesesystems.Thus,theinter-connectedpowersystemisformed.Electricpowernetworkisthegeneralnameofthetransmissionnetworkcomposedoftransmissionlinesandvariousconnectedsubstations.Itissimplycalledthepowernetwork.Thefeaturesofamodempowernetworkframeare:(1)ThemainnetworkframeisformedbyastrongEHV(UHV)system;(2)Thenetworksareconnectedcloselytoeachother;(3)thevoltageclassesaresimplified.发电的同时性意味着发电，输电，变电，分发和使用，必须在相同的时刻进行。电力不能被存储。因此，平衡必须保持随时发电，配电和利用过程中。电力系统由发电厂，传输网络，分配网络和消费者的电动设备的利用率。电力系统设备的统一表示的电力系统的发电设备，改造设备，传输线，配电线和功率利用设备构成一个不可分割的整数。没有任何一个，该电力网络可你正常操作。传输线连接两个电网被称为链接线。一些电力系统相互连接通过传输线来实现这些系统之间的电力交换。因此，相互连接的电力系统中形成。电力网络是传输线和各个连接的变电站组成的传输网络的总称。它被简单地称为电力网。调制解调器电网架的特点是：（1）主网架是由一个强大的超高压（特高压）系统形成;（2）网络紧密连接在一起;（3）电压等级被简化。1.Theelectricpowercanbestored.电力可以被存储。A.Right.B.Wrong2.Thepowersystemismadeupof4parts.电源系统由4个部分组成。A.Right.B.Wrong3.Theunificationofpowersystemequipmentisformedby4equipments.电力系统设备统一由4个设备构成。A.Right.B.Wrong4.Apowersystemisanundividedinteger.一个电力系统是一个不可分割的整数。A.RightB.Wrong5.Thepowernetworkcanoperatenormallywithouttheintegrationofother3equipments.电力网的工作能够正常运行无其他3设备的集成。A.Right.B.Wrong6.Alinklineiscalledatransmissionline.链接线被称为传输线。A.Right.B.Wrong27.Alinklineisformedby3powernetworks.链接线由3电网工程组成。A.Right.B.Wrong8.Anelectricpowernetworkissimplycalledapowernetwork.一种电力网的工作简称为电网工作。A.Right.B.Wrong9.ThemainnetworkframeisformedbyaweakEHVsystem.主力净工作框架是由弱超高压系统的形成。A.Right.B.Wrong10.Thenetworksarenotcloselylinkedwitheachother.网作品并不密切相互联系在一起的。A.Right.B.WrongPassage2Typesofcircuitbreaker断路器的类型——P57Thehighvoltagecircuitbreakerismainlycomposedofcontactors,arc-extinguishingelements,insulationmaterial,operatingmechanism.Theinsulationstructureofahighvoltagecircuitbreakermainlyincludestheinsulationofconductivepartstoground,phase-to-phaseandtheinsulationbetweenbreakingcontacts.Accordingtothearc-extinguishingmediums,itcanbedividedintooilcircuitbreaker(bulk-oilcircuitbreaker,oilminimumcircuitbreaker),airblastcircuitbreaker,SF6circuitbreaker,vacuumcircuitbreakeretc.Thecircuitbreakerwithoilasarc-extinguishingandinsulationmediumarecalledoilcircuitbreaker.Thecircuitbreakerwhosecontactorscloseandopeninhighvacuumiscalledvacuumcircuitbreaker.SF6circuitbreakeristhecircuitbreakerinwhichgasSF6isusedasthearc-extinguishingandinsulationmedium.ThepureSF6gasisagoodarc-extinguishingmedium.Itsinsulationstrengthishigherthanairandvacuum,andithasgoodheatdissipationcapability.Besides,thereisn'tanydangerofburningorexplosion.Now,themostlyusedcircuitbreakersinthepowergridareoilminimumcircuitbreaker,vacuumcircuitbreakerandSF6circuitbreaker.高压断路器主要由接触器，灭弧元件，绝缘材料，操作机构。高压断路器的绝缘结构主要由导体部件接地，相-相和破触头之间的绝缘的绝缘层。根据消弧介质，它可分为油断路器（散装油断路器，油最低断路器），空气鼓风断路器，SF6断路器，真空断路器等的电路断路器以油为弧-extinguishing和绝缘介质被称为油断路器。该断路器的接触紧密，并在高真空开叫真空断路器。SF6断路器是在其中气体的SF6作为灭弧和绝缘介质的断路器。纯SF6气体是一种良好的灭弧介质。LTS绝缘强度比空气和真空更高，并且它具有良好的散热性。此外，不存在燃烧或爆炸的危险。现在，在电网中最常使用的断路器油最低的断路器，真空断路器和SF6断路器。1.Contactors,arc-extinguishingelements,insulationmaterialandoperatingmechanismformthehighvoltagecircuitbreaker.接触器，灭弧元件，绝缘材料和操作机构形成的高压断路器。A.RightB.Wrong2.Theinsulationstructureismadeupof3parts.绝缘结构是由3部分组成。A.RightB.Wrong3.Thearc-extinguishingmediumcanbedividedintoonly3parts.灭弧介质可以分为仅3份。A.RightB.Wrong4.Anoilcircuitbreakermeansacircuitbreakerwithoilasarc-extinguishingandinsulationmedium.油断路器是指断路器油作为灭弧和绝缘介质。A.RightB.Wrong5.Avacuumcircuitbreakerisnotacircuitbreakerwithcloseandopencontactorsinhighvacuum.3真空断路器是不是一个断路器在高真空和密切接触开放。A.RightB.Wrong6.ApureSF6gasisnotagoodarc-extinguishingmedium.纯SF6气体是不是一个很好的灭弧介质。A.RightB.Wrong7.TheinsulationstrengthofSF6gasishigherthanairandvacuum.SF6气体的绝缘强度比空气和真空更高。A.RightB.Wrong8.Anoilminimumcircuitbreakerisverysafeinuse.油最低断路器是非常安全的使用。A.RightB.Wrong9.Anoilminimumcircuitbreakerhasbadheatdissipationcapability.油最低断路器具有不错的散热能力。A.RightB.Wrong10.Anoilminimumcircuitbreakerisoneofthemostlyusedcircuitbreakersinthepowergrid油最低断路器是在电网中最常使用的电路断路器中的一个。A.RightB.WrongPassage3Opticalfibercommunication光纤通信——P67Opticalfibercommunicationisakindofinformationcommunicationbyopticalfiber.Inpowersystem,thecompositeopticalfibergroundwireorOPGWiswidelyused.Theopticalfibermainnetworkismainlyresponsibleforthetransmissiontaskofpowerdispatchingtelephone,administration