500KV变电站电气部分毕业设计.doc

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500KV变电站电气部分毕业设计
500kV变电站电气部分设计
摘 要
随着近些年来我国经济的高速发展，能源的重要性日趋凸显。电力系统在整个行业中所占的比例逐渐增大，现代电力系统是一个庞大且有领导性地位的整体。各类发电厂、变电站分工完成整个电力系统的发电，变电和配电任务。电力系统是国民经济的重要能源部门，而变电站的设计是电力工业建设中必不可少的一个项目。
本毕业设计是500kV（500/220/35）变电站工程电气部分初步设计。其中500kV、220kV侧采用GIS方案，为了保证供电的可靠性和一次性满足远期负荷的要求，按照远期负荷规划进行设计建设，从而保证变电站能够长期可靠供电。
设计过程中完成了500kV枢纽变电站的电气主接线的选择、主变压器选择、电气主接线的拟定、短路计算、电气设备选择、配电装置的规划、继电保护和自动装置的规划和防雷保护的规划等主要工作。本设计书包括原始资料分析、设计说明书、计算书等。
关键词：500kV变电站 GIS方案 电气主接线 配电装置 变压器
THE DESIGN OF THE ELECTRICAL PART ABOUT THE 500KV TRANSFORMER SUBSTATION
Abstract
China's economy in recent years with the continued development of increasingly highlighted the importance of energy. Power system in the industry increases the proportion of the modern power system is a large and the overall position of leadership. Various types of power plants, substations complete the power system division of power generation, substation and distribution tasks. Power system is an important national energy sector, and substation design is essential for the construction of the power industry as a project.
This graduate design thesis is a (500/220/35 )kV a declining to press to change to give or get an electric shock an electricity parts of first steps design. For the sake of dependable that guarantee the power supply with a request that contented long-term burthen, carries according to the forward the programming proceeding design developments, from but guarantee to change to give or get an electric shock can long-term dependable power supply.
The design process to complete the regional 500kV electrical substation design a part of the content and design, the main lining selection, the development of main power, short circuit calculations, electrical equipment selection, power distribution equipment planning, relay protection and automatic protection devices and mine planning for planning major work. The de