220kV变电站一次系统设计

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长春大学

毕业设计（论文）

220kV变电站一次系统设计

姓名张校宾

学院电子信息工程学院

专业电气工程及其自动化

班级12402

指导教师刘冬梅（讲师）

2016 年 6 月13 日

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220kV变电站一次系统设计

摘要：变电站作为电力系统中的纽带，通过它来变换电压、分配电能、控制电力的流向，使各级系统联络起来，同时也是系统功率交换的电力设施。本毕业设计是对220kV普通降压变电站一次系统设计的综合讨论。首先是对基本资料的分析，根据220kV变电站设计的基本要求对主变压器容量、台数及形式进行选择。其次对主接线类型的比较来选择变电站最佳电气主接线的设计，然后进行短路电流计算，为设计中需要的高压电气设备的选择、整定及校验等方面做准备，从而进行主要电气设备的校验与选择。最后进行继电保护配置以及防雷保护的设计等。

关键字：一次系统；变电站；短路计算

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220kV Substation Primary System Design

Abstract: Substation as a link in the power system, through it to transform the voltage, distribution of electrical energy, control the flow of electricity, so that all levels of system to link up, but also the power of the system power switching facilities. The graduation design is a comprehensive discussion on the primary system design of the 220kV common buck substation. First is the analysis of the basic data, according to the basic requirements of the design of 220kV substation of main transformer capacity, number of units and the form. Followed by the type of main wiring is to choose optimal substation main electrical wiring design, then the short-circuit current calculation, to prepare for the design of high voltage electrical equipment choice, setting and checking, to carry out verification and selection of main electrical equipment. At last, the configuration of relay protection and the design of lightning protection are also carried out.

Keywords: Primary system；Substation；Short circuit calculation