4×200mw火力发电厂电气一次部分设计.doc

4×200MW火力发电厂电气一次部分设计 Design of 4x200MW Thermal?Power?Plant Primary System 学生学号 学生姓名： 专业班级：电气0902 指导教师： 职 称：讲师 起止日期：2013.3.4～2013.6.17 摘 要 由发电、配电、输电、变电和用电等环节组成的电能生产与消费系统。它的功能是将自然界的一次能源通过发电动力装置转化成电能，再经输、变电系统及配电系统将电能供应到各负荷中心。 火力本文主要完成了电气主接线的方案设计及其经济型分析，主要电气设备的选择，包括主变压器的容量计算。在发电厂短路电流计算的基础上，进行配电装置的选型方案的设计。回路。在火力发电厂电气部分设计中，一次回路的设计是主体，它是保证供电可靠性、经济性和电能质量的关键，并直接影响着电气部分的投资。 本文主要完成了电气主接线的方案设计及其经济型分析，主要电气设备的选择，包括主变压器的容量计算。在发电厂短路电流计算的基础上，进行配电装置的选型方案的设计。 关键词：发电厂；电气主接线；电气设备 Abstract By the power generation, transformation, transmission and distribution of electricity and energy components, and other aspects of production and consumption systems. It is the function of the natural world through the power of primary energy into electrical energy power plant, then lost, transforming the system and distribution system will supply power to the load centers. Thermal power plant is a establishment about generate electricity and power transform. The electrical equipments in thermal power plant have two parts of Primary Equipment and Secondary Equipment. We always take producing, transporting and distributing equipment into Primary Equipment. The high voltage electrical circuit which denotes the connection of Primary Equipment is Primary circuit. Primary circuit is the Principle part in Thermal power plant of electrical design. It is the hinge of guaranteeing the reliability of power supply, economic，power quality, and infecting the investment of electrical party. In this paper, we completed the program design and economic analysis of the main electrical wiring, major electrical equipment options, including the main transformer capacity calculation . Calculated on the basis of short-circuit current from power plants , power distribution device selection program design . Key Words：power plant；the main electrical connection；electrical equipment 目 录 摘 要 I Abstract