楼宇供配电系统英.ppt
《楼宇供配电系统英.ppt》由会员分享,可在线阅读,更多相关《楼宇供配电系统英.ppt(36页珍藏版)》请在淘文阁 - 分享文档赚钱的网站上搜索。
1、Chapter 2 Power supply and distribution system2.1 Introduction2.2 Typical system inside the building2.3 system diagram reading2.4 monitoring system2.5 Examples分配分配distributing 产生产生Generating 传输传输transmitting2.1 IntroductionPower supply system 110kV220kV500kV2.1 Introduction2.1 Introduction110kV 50-1
2、50km220kV 200-400km500kV 500km35kV10kV380V500kV2.1 Introduction2.1 IntroductionAutomation in Power Distribution How does Power reach us?Bottlenecks in Power Reliability The Technology Development Mission Communication and Networking Remote Terminal Unit Remotely Operable Switch (ASIC)Application Spe
3、cific Integrated Circuit DA software Distribution Network Simulator 10kV0.4kV110kV 10kV 10kV 110kV Power stationTransformerDistribution substations User 2.1 Introduction2.2 Typical system inside the building(a)One main+one spare single busMain Electrical Connection10kV Bus10kV BusS1S2Main Main Spare
4、 Spare 主供主供备用备用(a)Two inputs Single bus bar Save(area and finance)Service interruption or blackout(bus failure)Building with low reliability requirement or low loadMain Electrical Connection(b)b)Two inputs Sectionalizing bus with tie switch Additional bus tie cabinet and voltage transformer cabinet
5、High reliability Building with high reliability requirement or high load(b)Two inputs single bus with tie switch 10kV Bus10kV BusS1S2Main Main Spare Spare 主主 备备 10kV Bus10kV BusS1S2Power1 Power1 Power2 Power2 Tie switchTie switch2.2 Typical system inside the building(a)One main+one spareTwo 10kV ind
6、ependent power inputs、self-supplied generator,Sectionalizing Single bus bar on low side。10kV bus10kV busS1S1S2S2Power1 Power1 Power2 Power2 400V bus 400V bus 10kV/400V10kV/400VtransformerSelf-providedSelf-providedgeneratorgeneratoremergency Bus Bus10kV bus10kV bus(c)Two inputs with generator(c)Two i
7、nputs with generator 2.2 Typical system inside the buildingGenerator operation diagram3S3S 10S10S5min5min10min10minMains市电市电generatorgeneratorMain Main switchdisappearrestore Self-startstopMain switch shut down 自自备发电备发电机机组组要要选择选择有自启有自启动动装置的机装置的机组组,市,市电电停停电电后延后延时时3s后开始后开始启启动动,启,启动时间约动时间约10s,发电发电机主开关合
8、机主开关合闸闸供供电电,当市,当市电电恢复后,机恢复后,机组组延延时约时约5分分钟钟(带载带载运行),再空运行),再空载载冷却运行冷却运行约约10分分钟钟后自后自动动停停车车。2.2 Typical system inside the building两路市两路市电电与自与自备电备电源源 Fire liftFire protectionEmergency lightingHall lightinggeneratorMain I Main II EmergencybusUPS computerImportant loadinterlockG 一一级负级负荷荷单单独分独分组组方案,方案,将消防用将
9、消防用电电等一等一级负级负荷荷单单独分出,并集中一独分出,并集中一段母段母线线供供电电,备备用用发电发电机机组仅对组仅对此段母此段母线线提供提供备备用用电电源。源。2.2 Typical system inside the building 正常情况,消防正常情况,消防设备设备等用等用电设备为电设备为两路市两路市电电同同时时供供电电,应应急母急母线电线电源源由其中一路市由其中一路市电电供供给给。当两路市。当两路市电电失去一路,可以通失去一路,可以通过过两路市两路市电电中中间间的的联络联络开关合开关合闸闸恢复大部分供恢复大部分供电电,当两路市,当两路市电电全部失去全部失去时时,自,自动动启启动动
10、机机组组ATS开关开关转换转换,应应急母急母线线由机由机组组供供电电,保,保证证消防消防设备设备等重要等重要负负荷的供荷的供电电。Fire liftFire protectionEmergency lightingHall lightinggeneratorMain I Main II EmergencybusUPS computerImportant loadInter G2.2 Typical system inside the building 对对大大厅厅照明等稍照明等稍为为重要的重要的负负荷,由于配荷,由于配电电开关上装有失开关上装有失压压脱扣器,在脱扣器,在市市电电故障故障时时已全
11、部分已全部分闸闸,然后可根据机,然后可根据机组负组负荷情况手荷情况手动动合合闸闸。例如此。例如此时时无火灾可全部合无火灾可全部合闸闸,如一旦,如一旦发发生火灾,生火灾,则则根据消防根据消防发发出的指令自出的指令自动动跳跳闸闸。方案适用于方案适用于电电网网稳稳定、大楼重要定、大楼重要负负荷荷较较多的工程。多的工程。Fire liftFire protectionEmergency lightingHall lightinggeneratorMain I Main II EmergencybusUPS computerImportant loadinterlockG2.2 Typical syst
12、em inside the building ATS(Automatic transfer switching equipment)自动转换开关电器自动转换开关电器 ATS:safely switching from utility power to emergency generator power主要用在紧急供电系统主要用在紧急供电系统 ATS:switching from a primary source to a secondary 将负载从一个电源自动换接至另一个(备用)电源将负载从一个电源自动换接至另一个(备用)电源 ATS:常常应用在重要用电场所,其产品可靠性尤为重要。常常应用在
13、重要用电场所,其产品可靠性尤为重要。2.2 Typical system inside the building main supply main supply380V/220V bus bar 380V/220V bus bar Transformer10kV/400V10kV/400V380V/220V spare 380V/220V spare difficult to get two inputs,400V power supply nearby main input 10kV,400V spare small building,low power consumption.(d)Two
14、 inputs(main and spare)(d)Two inputs(main and spare)2.2 Typical system inside the building进进线线柜柜计计量量柜柜保保护护柜柜互互感感器器柜柜变变压压器器柜柜变变压压器器柜柜其其他他变变电电所所电电容容器器柜柜保保护护柜柜进进线线柜柜metering cabinet power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapacitorcabinetProtectio
15、ncabinetpower incoming cabinet 进进线线柜柜计计量量柜柜保保护护柜柜互互感感器器柜柜变变压压器器柜柜变变压压器器柜柜其其他他变变电电所所电电容容器器柜柜保保护护柜柜进进线线柜柜metering cabinet power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapacitorcabinetProtectioncabinetpower incoming cabinet 1 两路两路10KV 进线进线 一路由市网供给,电缆引入
16、,(装有专用计量柜和进线开关)一路由市网供给,电缆引入,(装有专用计量柜和进线开关)2 另一电源为备用电源,架空引入,由本企业引入。无计量柜另一电源为备用电源,架空引入,由本企业引入。无计量柜,有进线保护柜。有进线保护柜。进进线线柜柜计计量量柜柜保保护护柜柜互互感感器器柜柜变变压压器器柜柜变变压压器器柜柜其其他他变变电电所所电电容容器器柜柜保保护护柜柜进进线线柜柜metering cabinet power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapa
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 楼宇 配电 系统
限制150内