摘要

随着农网改造的不断推进，农网改造的领域逐渐扩大。农网小型化变电所的设计若采用常规变电所的设计，则存在占地多、投资大、工期长、缺乏农电等缺点。因此，如何根据农网的具体特点，探索出农村变电所建设发展方向和模式，是急待解决的问题。本设计根据某地方的电力负荷资料，作出了该区地面35kV变电站的一次初步设计。本次设计中进行了电气主接线的设计、短路电流计算、主要电气设备选择及校验（包括断路器、隔离开关、电流互感器、电压互感器、母线等）、各电压等级配电装置设计、直流系统设计以及防雷保护的配置。

关键词：农网；35KV；变电站；

Abstract

With the continuous progress of the rural power grids, the field of rural power grids gradually expanding. Rural power miniaturization substation design using conventional substation design, covers an area of investment, long construction period, and the lack of rural power and other shortcomings. Therefore, according to the specific characteristics of the rural power grid, discover the rural substation construction and development direction and mode is the most pressing problem. The design according to the electric load data of a place to make the area ground 35kV substation a preliminary design. The design of the design of the main electrical wiring, short-circuit current calculation, the main electrical equipment selection and calibration (including circuit breakers, disconnectors, current transformers, voltage transformers, bus, etc.), the voltage level of electrical installations DC system design and configuration of the lightning protection.

Keywords: Rural; 35KV; substation;