2×300MW发电厂厂用电系统设计 说明书（论文）+任务书+开题报告+计算书+CAD图纸
摘 要
随着时间的推移，社会的进步，人们的生活水平日益提高，人们对周围设施的要求意识也逐渐提高起来。本设计通过对2*300MW级发电厂的厂用电系统进行设计，使学生能够熟悉国家和电力行业的有关政策法规和设计规范，学会查阅相关技术资料，综合运用所学理论和专业知识来解决实际的工程问题，掌握发电厂的厂用电设计基本程序和基本方法。
在本设计中通过对任务书的详细分析，并根据设计规程手册中的要求，首先确定了发电厂的变压器容量，并通过比较选择了主接线的形式。在进行完短路计算后，根据计算结果选择了设计中所需的各种器件，并进行了校验。通过所学的课本中的知识和翻阅资料确定了本设计中发电厂的配电系统，自动装置及继电保护系统。最后根据配电系统画出本设计中的主接线图，断面图和平面图，并根据所查尺寸设计出防雷保护，画出防雷保护设计图纸最终完成本次设计。
关键词：发电厂；2*300MW；厂用电系统；主接线图；短路计算
Abstract
With the passage of time, with the progress of the society, people's living standards are improving day by day, and people's awareness of the requirements of the surrounding facilities is also gradually improved. This design through the 2 * 300MW power plant system design, so that students can be familiar with the relevant policies and regulations of the state and the power industry and design specification, learn to consult the relevant technical data, the integrated use of theory and professional knowledge to solve practical engineering problems, master the basic procedures and methods of power design of power plant.
In this design, through the detailed analysis of the task book and according to the requirements in the design specification, the transformer capacity of the power plant is determined, and the main wiring is selected by comparison. After the short circuit calculation, various devices required in the design are selected according to the calculation results and verified. The power distribution system, automatic device and relay protection system are determined through the knowledge and reading materials in this design. Finally, draw the main wiring drawing, section drawing and plan drawing according to the power distribution system, and design the lightning protection drawing according to the checked size, and draw the lightning protection design drawing to complete the design.
Key words: power plant; 2 * 300MW; power supply system; main wiring diagram; short circuit calculation
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