曹磊 10kV中心变电所的设计.docVIP

摘 要 变电所是电力系统的重要组成部分，也是电力生产和电力使用的中间重要环节。10kV中心变电所还是的输电系统的终端，起着输送，变压，分配电能的作用。10kV中心变电所是工农业生产和城乡居民生活供电系统的枢纽。10kV中心变电所广泛应用在工厂，经济开发区，农业产业园区，农业畜牧业养殖基等工农业生产中。对于10kV中心变电所在现实生活中出现的用电负荷增大，操作频繁，保护易受外界损坏，安全运行系数不高等问题。给工农业生产和人民生活带来了许多不便。针对以上生产生活中的问题，由我来完成这一篇关于10kV中心变电所的毕业设计。该篇设计主要介绍10kV中心变电所电气设备的选择和校验，电力负荷的分配，短路保护的设计，配电装置的布置，防雷保护和接地装置的设计等内容。 关键词：电气设备;电力负荷;防雷保护;接地装置 Abstract Substation is an important part of power system, also is the important link in the middle of the electric power production and power use. Center of 10kV substation or transmission system of the terminal, plays a conveyor, variable pressure, the distribution of electric energy effect. Center of 10kV substation is the industrial and agricultural production power supply system of the hub and urban and rural residents. Center of 10kV substation are widely used in factories, economic development zone, agricultural industrial park, agricultural livestock breeding base, and other industrial and agricultural production for 10kV. substation in the real life at the center of the load increase, frequent operation, protect vulnerable to damage to the outside world, the safe operation of the coefficient is not high. To the industrial and agricultural production and peoples life brought a lot of inconvenience. In view of the above problems in production and life, Ill finish this essay about 10kV substation at the center of the graduation design. This article mainly introduces the center 10kV substation electrical equipment selection and calibration, the distribution of the power load, short circuit protection design, layout of power distribution equipment, and the design of the lightning protection and grounding device, etc. Keywords: Electrical equipment; Power load; Lightning protection; Grounding device目 录 1 绪论 1 1.1 概述 1 1.2 设计要求及设计原则 2 1.2.1 设计目的 2 1.2.2 设计要求 2 1.2.3 设计原则 3 2 系统主设备的选择 3 2.1 变压器的选择 3 2.2 其他电气设备的选择 4 2.2.1 电流互感器 5 2.2.2 电压互感器 6 2.2.3 熔断器 7 2.2.4 隔离开关 8 2.2.5 断路器 9 3 电气主电路设计 1