220kv变电站电气二部分初步设计1220kv变电站电气二次部分初步设计1.doc

毕业设计(论文) 课 题 名 称 学 生 姓 名 学 号 系、年级专业指 导 教 师 职 称 高级工程师 2013年 月 日内容提要 变电站二次部分设计是变电站设计中不可缺少的环节，变电站的二次部分包括测量仪表、信号系统、继电保护、自动装置和远动装置，为能实现对全站的主设备、输、配电线路的自动监视、测量、控制和微机保护以及调度通信的综合性的自动化二次系统。合理的方案设计和整定计算对保证变电站安全、稳定、可靠的运行起着非常重要的作用。 本设计主要介绍了LWB地区的某220kV变电站电气二次部分的初步设计。首先结合原始资料，根据主接线形式完成短路计算，然后结合已经获得的资料完成主变继电保护的配置、整定计算和设备选型，主变各侧断路器控制和信号回路设计，主变220kV侧隔离开关电动操作机构设计，变电站公共部分设计及其通讯部分的概述，同时完成绘制各个部分设计图纸。 关键词：短路计算；继电保护；整定计算；二次系统；断路器控制 Summary Substation secondary part design is indispensable in the design of substation, substation of the second part includes measuring instrument, signal system, relay protection and automatic device and remote device, in order to realize the total stations main equipment, transport, distribution circuit of automatic monitoring, measurement, control and microcomputer protection and scheduling communication comprehensive automation of quadratic system. Reasonable design and setting calculation to ensure substation safe, reliable, and stable operation plays a very important role. This design mainly introduces the LWB region of a 220 kV substation electrical secondary part of the preliminary design. Combining with the raw data first, according to the main wiring short circuit calculation form is complete, and combining with the data of have been completed main transformer relay protection configuration and setting calculation and equipment selection, the main variable in each side of the circuit breaker control signal and circuit design, main transformer of 220 kV side electric isolation switch operating mechanism design, substation overview of public parts design and communication, and complete drawing parts design drawings. Key words: short circuit calculation; Relay protection; Setting calculation; Secondary system; The circuit breaker control. 目录 ………………………………………………………………………