1、 本科毕业设计(论文) 35KV 变电所及配电线路设计 2011.12.10 摘要 I 摘要 随着现代文明的发展与进步, 社会生产和生活对电能供应的质量和管理 提出了越来越高的要求。作为电能传输与控制的中间枢纽,变电所必须改变 传统的设计和控制模式,才能适应现代电力系统、现代化工业生产和社会生 活的发展趋势。此工厂供电设计包括:负荷的计算及无功功率的补偿;变电 所主变压器台数和容量、型式的确定;变电所主接线方案的选择;进出线的 选择;短路计算和开关设备的选择;二次回路方案的确定及继电器保护的选 择和整定;防雷保护与接地装置的设计;车间配电线路布线方案的确定;线 路导线及其配电设备和保护设备的选
2、择;以及电气照明的设计,还有电路图 的绘制。 关键词关键词 变电所 变压器 断路器 继电器 隔离开关 互感器 熔断器 II Abstract With development and progress of modern civilization, social production and is it put forward high request more and more to quality and management that electric energy supply to live. As the pivot between what the electric energy
3、 is transmitted and controlled, the transformer substation must change the traditional design and control the mode , could meet modern power system , modernized industrial production and development trend of social life . This factory supplies power and designs including: Calculation of load and com
4、pensation of the inactive power; Transformer substation main voltage transformer platform count and capacity , sureness of pattern; Mainly wire the choice of the scheme in the transformer substation; Pass in and out the choice of the thread; Choice of shorting out and calculating and switchgear ; Tw
5、o return circuit sureness and choice that relay protect of scheme exactly make; Defend the thunder and protect the design with the earth device ; The workshop distribution line connects up the sureness of the scheme; Circuit wire and distribution equipment and protecting the choice of the equipment;
6、 And the electric design that lighted, there is drawing of circuit diagram. Keywords Transformer substation Voltage transformer Circuit breaker Relay Isolate the switch Mutual inductor Fuse box. III 目 录 摘要 .I Abstract II 第 1 章 绪论 4 1.1 课题背景 .4 第 2 章 35KV 变电所及低压配电线路设计 5 2.1 负荷计算 .5 2.2 无功补偿计算及设备选择 8 2.3 变电所位置的选择 14 2.3.1 变电所的分类 .14 2.3.2 变电所所址选择的一般的应遵循的原则 .14 2.4 变电所的主变压器台数和容量的选择 16 2.4.1 主变压器台数的选择 .16 2.4.2 主变压器容量的选择 .16 2.5 变电所主接线方案的设计 .17 2.7 变电所一次设备的选择 27 2.7.1 一次设备选择的一般要求 .27