泰安高新开发区110kV变电所电气设计计算书.doc

1、泰安高新开发区110kV变电所电气设计摘要：本文主要进行110KV变电所设计。首先根据任务书上所给系统及线路和所有负荷的参数，通过对所建变电站及出线的考虑和对负荷资料分析，满足安全性、经济性及可靠性的要求确定了110KV、35KV、10KV侧主接线的形式，然后又通过负荷计算及供电范围确定了主变压器台数、容量、及型号，从而得出各元件的参数，进行等值网络化简，然后选择短路点进行短路计算，根据短路电流计算结果及最大持续工作电流，选择并校验电气设备，包括母线、断路器、隔离开关、电压互感器、电流互感器等，并确定配电装置。根据负荷及短路计算为线路、变压器、母线配置继电保护并进行整定计算。本文同时对防雷接地

2、及补偿装置进行了简单的分析，最后进行了电气主接线图及110KV配电装置间隔断面图的绘制。关键词：变电所设计，变压器，电气主接线，设备选择Taian Hi-tech Development Zone 110kV substation electrical designAbstract：This paperdesign a 110KV substation.Firstly,according to the gaved system, electricity line and the parameters of load ,which provided by the assignment book,

3、through considering the substation which will be built and feeders,analysising load materials,confirming the Main electrical wiring form of 110KV、35KV、10KV side based on security,economy and reliability,then conform the numbers,volume and type of the main transformer through load calulation and supp

4、ly district,thus getting the parameters of all the component,simplify electric circuit,select short point carry on short circuit calculations operation circuit, select and check out electrical equipment, including bus,breaker, disconnect switch, voltage transformer, current transformer and so on,so

5、that conform the distribution apparatus.Configurating relay protection and setting-calculation for the electricity line,transformer and bus according to the load and short calculations.At the same time,this paper analyse simply lightning protection and grounding system.Finally,two pictures be drawed

6、 which include Main electrical wiring diagram and 110KV Power distribution equipment sectional drawing interval.KeyWords: Substation design,Transformer,Main electrical wiring,Equipment election目录摘要 Abstract71 引言91.1变电站的作用91.2我国变电站的设计及发展的趋势91.3变电站的设计原则和分类102 任务书112.1设计的原始资料112.2设计的要求133 电气主接线设计133.1

7、电气主接线设计概述133.2 电气主接线的基本形式133.3 电气主接线选择144 变压器的选择154.1 变电所主变压器的选择有以下几点原则：164.2 主变台数的确定164.3 主变压器容量的确定164.4 变压器类型的确定174.4.1相数的选择174.4.2绕组形式174.5 变压器型号的确定185 短路电流计算215.1 短路的危害215.2 短路电流计算的目的215.3 短路电流计算方法225.4 选择短路电流计算点225.5发电机及变电所的各种数据225.6计算各短路点的最大短路电流236 导线的选择246.1 导线的选择和校验246.1.1导体截面的选择：246.1.2、导体的

8、校验：256.2 确定线路导线的规格266.3 10KV297 配电装置及电气设备的配置与选择317.1 导体和电气设备选择的一般条件317.1.1 一般原则317.1.2技术条件31 7.1.3 环境条件337.2 断路器的选择337.2.1 110kV断路器的选择337.2.2 主变35kV侧断路器及分段断路器的选择347.2.3 35kV出线断路器选择367.2.4 主变10kV侧断路器及分段断路器的选择377.2.5 10kV出线断路器的选择387.3 隔离开关的选择397.3.1 110kV隔离开关的选择397.3.2 35kV主变总断路器及分段断路器两侧隔离开关的选择407.3.3

9、 35kV出线断路器两侧及35KV母线PT隔离开关的选择417.3.4 主变10kV侧断路器及10KV分段断路器两侧隔离开关的选择427.3.5 10kV出线断路器两侧隔离开关及10KV母线PT隔离开关的选择437.4 电流互感器的选择447.4.1 110KV电流互感器选择447.4.2 主变35KV侧总开关CT及35KV分段开关CT选择457.4.3 35KV 汽配厂化肥厂线路CT选择467.4.4 35KV 糖厂线 路钢铁厂CT选择467.4.5 主变10KV侧总开关CT及10KV分段CT选择477.4.6 10KV 大江毛纺厂大江纸厂皮革厂自来水厂东配电站485.4.7 10KV 西配

10、电站线路CT选择497.4.8 10KV 红星化工厂线路CT选择497.5 电压互感器选择507.5.1 110kV线路CVT选择507.5.2 35kV侧PT选择507.5.3 10kV侧PT选择518 避雷器和母线选择518.1防雷保护518.1.2 侵入波保护518.1.3 目的518.1.4根据各级电压等级确定避雷器的额定电压518.2 主母线选择528.2.1 35kV侧母线选择(软母线)528.2.2 10kV侧母线选择（硬母线）529 继电保护配置539.1 继电保护的基本知识539.2 110KV部分549.3 35KV部分549.4 10KV部分5410 主变压器保护配置、配

11、电装置、接地装置5410.1 保护装置5410.2 母线保护5510.3 线路保护5510.4 接地装置的设计5610.5 配电装置56参考文献57致谢5857catalogue摘要7Abstract81 Introduction91.1 Role substation91.2 Design and development trend of substation91.3 Design principles and classification substation102 mission statement112.1 Design of raw materials112.2 Design req

12、uirements133 Electric main wiring design133.1 Main Electrical Wiring Design Overview133.2 The basic form of the main Electrical Wiring133.3 Main Electrical Connection Selec144 Select transformer154.1 Select the main transformer substation are the following principles:164.2 determine the number of ma

13、in transformer station164.3 Main transformer capacity is determined164.4 determine the type of transformer174.4.1 Select the number of phases174.4.2 winding form174.5 transformer models to determine185 short circuit calculation215.1 shorting hazards215.2 The purpose of the short-circuit current calc

14、ulation215.3 short-circuit current calculation method225.4 short-circuit current calculation points selection225.5 variety of data generators and substations225.6 calculate the maximum short-circuit current of short circuit236 wire option246.1 wire selection and validation246.1.1 Selection conductor

15、 cross-section:246.1.2 conductor check:256.2 determine the line wire specifications266.3 10KV297 distribution configuration and selection means and electrical equipmentGeneral Conditions 317.1 conductors and electrical equipment selection317.1.1 General Principles317.1.2 Technical conditions31 7.1.3 Environmental conditions337