摘要
变电所是电力系统的重要组成部分，是电力输送的一个重要环节，它的安全运行与否，直接影响着整个电力系统的安全运行，变电所在电力输送中起着变换和分配电能的作用。
随着我国经济的飞速发展，对电力的要求也是越来越高，如何减少电力传送的损耗，如何获得更高的电能质量成为企业和工厂考虑的首要因素，为了满足这一要求，现在越来越多的企业和工厂都采用10KV进线，所以35KV降压变电所的设计在电力输送配置中的作用越来月明显。
本次的35KV降压变电所10KV侧电气部分设计是根据目前我国的变电所电气系统的设计规范进行的；主变压器的选择、主接线的选择、短路电流计算、电气设备的选择，中性点的接线方式，继电保护装置的配置和变电所的防雷规划是本次设计的主要内容。
关键词：35KV降压变电所；短路电流；主变压器；防雷
ABSTRACT
Substation is an important part of the power system, power transmiion is an important part, it\'s safe to run or not directly affect the safe operation of the entire power system, substations and distribution of electric energy conversion plays role in power delivery in.
With the rapid development of China\'s economy, the electricity requirements are increasing, how to reduce the lo of power transmiion, how to get a higher power quality and become the primary factor considered in the factory, in order to meet this requirement, and now increasingly more and more companies and factories have adopted 10KV line, so 35KV/10KVstep-down substation design configurations role in conveying the power increasingly evident month.
The step-down substation 10KV side of the electrical part of the design is based on the current design specifications of the substation electrical system performed; selection Select the main transformer, main wiring options, short-circuit current calculation, electrical equipment, the wiring of points, configuration and substation lightning protection devices planning is the main content of this design.
Keywords: Buck 35KV substation; short-circuit current; main transformer; mine
