楼宇自动化第2章1楼宇供配电系统(英文)ppt课件

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.Hydropower plant Thermal power plant Nuclear powerplant Larger userLarger userSubstation Power lineTransmission and distribution User User分配

2、distributing 产生Generating 传输transmitting2.1 IntroductionOthersPower supply system .110kV220kV500kV2.1 Introduction.2.1 Introduction110kV 50-150km220kV 200-400km500kV 500km.35kV10kV380V500kV2.1 Introduction.2.1 IntroductionAutomation in Power Distribution How does Power reach us? Bottlenecks in Power

3、 Reliability The Technology Development Mission Communication and Networking Remote Terminal Unit Remotely Operable Switch (ASIC) Application Specific Integrated Circuit DA software Distribution Network Simulator .10kV0.4kV110kV 10kV 10kV 110kV Power stationTransformerDistribution substations User 2

4、.1 Introduction.2.2 Typical system inside the building(a) One main + one spare single busMain Electrical Connection10kV BusS1S2Main Spare 主供备用a) Two inputs Single bus bar Save (area and finance ) Service interruption or blackout ( bus failure ) Building with low reliability requirement or low load.M

5、ain Electrical Connectionb) Two inputs Sectionalizing bus with tie switch Additional bus tie cabinet and voltage transformer cabinet High reliability Building with high reliability requirement or high load(b) Two inputs single bus with tie switch 10kV BusS1S2Main Spare 主 备 10kV BusS1S2Power1 Power2

6、Tie switch2.2 Typical system inside the building(a) One main + one spare.Two 10kV independent power inputs、self-supplied generator, Sectionalizing Single bus bar on low side。10kV busS1S2Power1 Power2 400V bus 10kV/400VtransformerSelf-providedgeneratoremergency Bus10kV bus(c) Two inputs with generato

7、r 2.2 Typical system inside the building.Generator operation diagram3S10S5min10minMains市电generatorgeneratorMain switchdisappearrestore Self-startstopMain switch shut down 自备发电机组要选择有自启动安装的机组，市电停电后延时3s后开场启动，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分钟带载运转，再空载冷却运转约10分钟后自动停车。2.2 Typical system inside the buildin

8、g.两路市电与自备电源 Fire liftFire protectionEmergency lightingHall lightinggeneratorMain I Main II EmergencybusUPScomputerImportant loadinterlockG 一级负荷单独分组方案， 将消防用电等一级负荷单独分出，并集中一段母线供电，备用发电机组仅对此段母线提供备用电源。2.2 Typical system inside the building. 正常情况，消防设备等用电设备为两路市电同时供电，应急母线电源由其中一路市电供应。当两路市电失去一路，可以经过两路市电中间的联络开关

9、合闸恢复大部分供电，当两路市电全部失去时，自动启动机组ATS开关转换，应急母线由机组供电，保证消防设备等重要负荷的供电。Fire liftFire protectionEmergency lightingHall lightinggeneratorMain I Main II EmergencybusUPScomputerImportant loadInter G2.2 Typical system inside the building. 对大厅照明等稍为重要的负荷，由于配电开关上装有失压脱扣器，在市电缺点时已全部分闸，然后可根据机组负荷情况手动合闸。例如此时无火灾可全部合闸，如一旦发生火灾

10、，那么根据消防发出的指令自动跳闸。方案适用于电网稳定、大楼重要负荷较多的工程。Fire liftFire protectionEmergency lightingHall lightinggeneratorMain I Main II EmergencybusUPScomputerImportant loadinterlockG2.2 Typical system inside the building. ATS (Automatic transfer switching equipment) 自动转换开关电器 ATS: safely switching from utility power

11、to emergency generator power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 ATS: 经常运用在重要用电场所，其产品可靠性尤为重要。2.2 Typical system inside the building. main supply380V/220V bus bar Transformer10kV/400V380V/220V spare difficult to get two inputs， 400V power supply nearby m

12、ain input 10kV， 400V spare small building ,low power consumption.(d) Two inputs ( main and spare )2.2 Typical system inside the building.进线柜计量柜维护柜互感器柜变压器柜变压器柜其他变电所电容器柜维护柜进线柜metering cabinet power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapacitorcabin

13、etProtectioncabinetpower incoming cabinet .进线柜计量柜维护柜互感器柜变压器柜变压器柜其他变电所电容器柜维护柜进线柜metering cabinet power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapacitorcabinetProtectioncabinetpower incoming cabinet 1 两路10KV 进线 一路由市网供应，电缆引入，装有公用计量柜和进线开关2 另一电源为备用电源，架空引

14、入，由本企业引入。无计量柜,有进线维护柜。.进线柜计量柜维护柜互感器柜变压器柜变压器柜其他变电所电容器柜维护柜进线柜metering cabinet power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapacitorcabinetProtectioncabinetpower incoming cabinet 3 Incoming line protection cabinet: 进线维护柜，当变配电系统或母线出现短路和过载时断路器自动跳闸。circui

15、t breaker operate automatically.进线柜计量柜维护柜互感器柜变压器柜变压器柜其他变电所电容器柜维护柜进线柜metering cabinet power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapacitorcabinetProtectioncabinetpower incoming cabinet 4 Voltage transformer cabinet: metering and protection.进线柜计量柜维护

16、柜互感器柜变压器柜变压器柜其他变电所电容器柜维护柜进线柜metering cabinet power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapacitorcabinetProtectioncabinetpower incoming cabinet 5 Power transformer: 两台10/0.4KV电力变压器Y/Y0，由高压断路器进展高压侧短路维护和过载维护。.进线柜计量柜维护柜互感器柜变压器柜变压器柜其他变电所电容器柜维护柜进线柜mete

17、ring cabinet power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapacitorcabinetProtectioncabinetpower incoming cabinet 6 High voltage output to other power station. 高压引出线：去往其他变电所或杆上变压器，也是由高压断路器进展短路和过载维护。.进线柜计量柜维护柜互感器柜变压器柜变压器柜其他变电所电容器柜维护柜进线柜metering cabin

18、et power incoming cabinet otherstationsProtectioncabinetVoltagetransformercabinettransformercabinetcapacitorcabinetProtectioncabinetpower incoming cabinet 7 Capacitor cabinet: reactive power compensation. 电容器柜：在高压侧进展无功功率补偿，将本系统的功率因数提高到电业部门所规定的数值。普通在0.95左右。power supply bureau.B1B22 Two inputs Section

19、alizing with tie switch1 low voltage bus4 Power feeder panel 3 Capacitor compensation cabinet 5 Lighting feeder panel 2.2 Typical system inside the building.2.3 Diagram reading ()1 Diagram type 系统图？什么系统图？ 当拿到一张图纸时,假设看到有母线,就是变配电所的主电路图。然后看能否有电力变压器，假设有电力变压器就是变电所主电路图，假设没有那么是配电所的主电路图。2 single wire diagra

20、m元件技术数据采用两种方式表示：Datasheet1标注在图形符号的旁边 如变压器、发电机等2以表格方式给出如开关设备等Transformation station 变电所Distribution Station 配电所.4 Analysis methods 图的分析方法从电源进线开场，按照电能流动的方向进展。Bus 母线 Main wiring diagram主接线图Cabinet Type 配电屏型号Serial number编号3 Construction 图的构成2.3 Diagram reading ().5 Incoming lines电源进线 两路进线1采用LJ-325mm23根

21、25mm2的铝绞线，架空引入，经过负荷开关QLFN3-10/30-50R、熔断器FURW4-10-50/30A送入主变压器SL7-315kVA，10/0.4kV，将10kV的电压变换为0.4kV的电压送入3号配电屏，然后进到母线上。2备用发电机经QF低压断路器和QS刀开关进入2号配电屏，之后到母线2.3 Diagram reading ().Circuit breaker: 低压断路器对发动机进展过流维护.Knife switch: 刀开关起隔离带电母线作用，便于检修发动机出线的自动空气断路器。5 Incoming lines电源进线 两路进线1采用LJ-325mm23根25mm2的铝绞线，架

22、空引入，经过负荷开关QLFN3-10/30-50R、熔断器FURW4-10-50/30A送入主变压器SL7-315kVA，10/0.4kV，将10kV的电压变换为0.4kV的电压送入3号配电屏，然后进到母线上。2备用发电机经QF低压断路器和QS刀开关进入2号配电屏，之后到母线2.3 Diagram reading ().Distribution cabinet 第3号配电屏 Type ：BSL-11-01 低压配电屏用于电源进线。 有两个刀开关都起隔离作用，一个隔离变压器供电，一个隔离母线，防止备用发动机供电，便于检修低压断路器 有一个万能型低压断路器 型号为DW10，额定电流为600A，电磁脱扣器的动作整定电流为800A，能对变压器进展过电流维护Operation sequence: 配电屏操作顺序：断电时：先断开断路器，后断开隔离刀开关送电时：先合刀开关，后合断路器2.3 Diagram reading ().Transformer protection 变压器维护 lightning rod 避雷器 型号：FS-10型 维护变压器，防止雷电袭击。 在变压器高压侧进线端安装了一组共3个2.3 Diagram reading ().8 Main electrical connection 主结线 分段 单母线 隔离刀开关联络 Ra