第2章 楼宇供配电系统(英文)1

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1、Chapter2Powersupplyanddistributionsystem2.1Introduction2.2Typicalsysteminsidethebuilding2.3systemdiagramreading2.4monitoringsystem2.5ExamplesHydropowerplantThermalpowerplantNuclearpowerplantLargeruserLargeruserSubstationPowerlineTransmissionanddistributionUserUser分配distributing产生Generating传输transm

2、itting2.1IntroductionOthersPowersupplysystem110kV220kV500kV2.1Introduction2.1Introduction110kV50-150km220kV200-400km500kV500km35kV10kV380V500kV2.1Introduction2.1IntroductionAutomationinPowerDistribution◆HowdoesPowerreachus?◆BottlenecksinPowerReliability◆TheTechnologyDevelopmentMission●Communicatio

3、nandNetworking●RemoteTerminalUnit●RemotelyOperableSwitch●(ASIC)ApplicationSpecificIntegratedCircuit●DAsoftware●DistributionNetworkSimulator10kV0.4kV110kV10kV10kV110kVPowerstationTransformerDistributionsubstationsUser2.1Introduction2.2Typicalsysteminsidethebuilding(a)Onemain+onesparesinglebusMainEl

4、ectricalConnection10kVBusS1S2MainSpare主供备用（a)◆TwoinputsSinglebusbar◆Save(areaandfinance)◆Serviceinterruptionorblackout(busfailure)◆BuildingwithlowreliabilityrequirementorlowloadMainElectricalConnection（b)◆TwoinputsSectionalizingbuswithtieswitch◆Additionalbustiecabinetandvoltagetransformercabinet◆H

5、ighreliability◆Buildingwithhighreliabilityrequirementorhighload(b)Twoinputssinglebuswithtieswitch10kVBusS1S2MainSpare主备10kVBusS1S2Power1Power2Tieswitch2.2Typicalsysteminsidethebuilding(a)Onemain+onespareTwo10kVindependentpowerinputs、self-suppliedgenerator,SectionalizingSinglebusbaronlowside。10kVbu

6、sS1S2Power1Power2400Vbus10kV/400VtransformerSelf-providedgeneratoremergencyBus10kVbus(c)Twoinputswithgenerator2.2TypicalsysteminsidethebuildingGeneratoroperationdiagram3S10S5min10minMains市电generatorgeneratorMainswitchdisappearrestoreSelf-startstopMainswitchshutdown◆自备发电机组要选择有自启动装置的机组，市电停电后延时3s后开始启

7、动，启动时间约10s，发电机主开关合闸供电，当市电恢复后，机组延时约5分钟（带载运行），再空载冷却运行约10分钟后自动停车。2.2Typicalsysteminsidethebuilding两路市电与自备电源FireliftFireprotectionEmergencylightingHalllightinggeneratorMainIMainIIEmergencybusUPScomputerImportantloadi