康平嘉和小区供配电设计计算书.doc

1、目 录摘要IAbstract II引言11设计说明21.1 工程概况2 1.2 设计依据2 1.3 设计原则2 1.4 小区资料2 1.5 设计成果32小区负荷计算33无功功率计算及补偿4 3.1无功补偿方式4 3.2无功补偿容量4 3.3并联电容器的选择及其控制44变配电所位置和型式的选择5 4.1变配电所位置的确定5 4.2变配电所的总体布置55主变压器台数和容量的确定5 5.1变压器主变台数的选择5 5.2变压器容量的选择66变配电所主接线方案的选择6 6.1变电所主接线方案的评价67短路电流的计算77.1短路计算的意义和方法7 7.2相关节点的短路计算7 7.2.1电路图7 7.2.2

2、确定基准值7 7.2.3计算短路电路中各主要元件的电抗标么值8 7.2.4求K-1点的短路电流计算8 7.2.5求K-2点的短路电流计算98变电所高压侧一次设备的选择与校验9 8.1电缆的选择9 8.1.1进线电缆的选择9 8.1.2高压母线的选择10 8.1.3高压出线电缆的选择10 8.2高压设备的选择与校验11 8.2.1高压开关柜11 8.2.2高压断路器11 8.2.3高压熔断器12 8.2.4电流互感器12 8.2.5电压互感器12 8.2.6其他139变电所低压侧一次设备的选择与校验13 9.1低压配电柜的选择13 9.1.1低压母线的选择与校验13 9.2低压电缆、设备的选择与

3、校验13 9.2.1电缆的选择14 9.2.2低压断路器的选择与校验15 9.2.3低压刀开关的选择与校验16 9.2.4电流互感器的选择与校验1610变压器保护设置16 10.1 变电所10kV馈线保护17 10.2变电所10kV母线保护1911小区单体设计19 11.1电气照明设计19 11.1.1小区照明概述19 11.1.2照明设计的要点19 11.1.3灯具的选择与布置及照度计算20 11.2插座31 11.3线路和断路器的选择与布置32 11.3.1导线选择33 11.3.2低压断路器的选择34 11.3.3断路器的整定35 11.4弱电系统设计35 11.4.1电话35 11.4

4、.2网络36 11.4.3有线电视3612防雷接地系统设计36 12.1概述36 12.2 变电所防雷接地系统设计36 12.3 单体楼的防雷接地系统设计37参考文献39致谢40ContentsIntroductionIAbstract IIPreface11 Design elucidation2 1.1 Engineering general situation2 1.2 Design basis2 1.3 Design principle2 1.4 Small area data2 1.5 Design result32 Small area burden calculation33 H

5、ave no achievement power calculation and compensate4 3.1 Have no achievement repair way4 3.2 Have no achievement repair capacity4 3.3 Merge the choice of capacitor and it control44 Change to go together with an electricity position and pattern of choice5 4.1 Change to go together with an electricity

6、 position of assurance5 4.2 Change to go together with an electricity of total decoration55 Lord transformer set number and capacity of assurance5 5.1 Transformer lords change set number of choice5 5.2 The choice of 2 transformer capacities66 Change to go together with an electricity lord connect a

7、line project of choice6 6.1 Substation lords connect the evaluation of line project67 The calculation of the short circuit electric current7 7.1 Short circuit calculation of meaning and method7 7.2 The short circuit of 2 related nodes calculation7 7.2.1 Electric circuit diagram7 7.2.2 Assurance basi

8、s value7 7.2.3 Calculation short circuit each main component in the electric circuit of electricity anti- mark Yao value8 7.2.4 Beg the short circuit electric current of point K-1 a calculation8 7.2.5 Beg the short circuit electric current of point K-2 a calculation98 The side a choice of equipments

9、 and school of the substation high pressure check9 8.1 The choice of one electric cable9 8.1.1 The choice entered line electric cable9 8.1.2 High pressure mother line of choice10 8.1.3 Choice of line electric cable10 8.2 Choice and school of 2 high pressure equipmentses check11 8.2.1 High pressure s

10、witch cabinet11 8.2.2 High pressure chopper11 8.2.3 High pressure Rongs break a machine12 8.2.4 Electric current with each other feeling machine12 8.2.5 Electric voltage with each other feeling machine12 8.2.6 Others139 Substation low pressure side the choice of an equipments check with school13 9.1

11、 Low pressure mother line of choice check with school13 9.1.1 Low pressure electric cable, equipments check13 9.2 Low pressure electric cable, equipments check13 9.2.1 The choice of electric cables14 9.2.2 Low pressure choppers check with school15 9.2.3 Low pressure knife the choice of the switch ch

12、eck with school16 9.2.4 Electric current with each other choice and school of feeling machine check1610 Transformer protection constitution16 10.1 The substation 10 kV Kui line protection17 10.2 The substation 10 kV mother line protection1911 Small rea list body design19 11.1 Electricities illuminat

13、e a design19 11.1.1 Small areas illuminate to all say19 11.1.2 The important point illuminated a design19 11.1.3 The choice of lamps with arrange and shine on a degree calculation20 11.2 Electric outlet31 11.3 The lead a line choice system design32 11.3.1 The choice of line33 11.3.2 The choice of lo

14、w pressure choppers34 11.3.3 Chopper of whole settle35 11.4 Weak electricity system design35 11.4.1 Telephone35 11.4.2 Network36 11.4.3 Cabled T.V3612 Defend the thunder connect a ground of system design36 12.1 All say36 12.2 The substation defend thunder to connect a ground of system design36 12.3 The list body building defend thunder to connect a ground of system Design37Reference39Acknowledgement40