文档介绍：毕业设计(论文)
课题名称 LWB220kV变电站电气二次部分初步设计
学生姓名付晓雷
学号 0941201010
系、年级专业电气工程系、09级电气工程及其自动化
指导教师何建政
职称高级工程师
2013年 5月 17 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 station's main equipment, transport, distribution circuit of automatic monitoring, measurement, control and puter protection and prehensive 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 plete, bining with the data of have pleted 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 munication, plete drawing parts design drawings.
Key words: short circuit calculation; Relay protection; Setting calculation; Secondary system; The circuit breaker control.
目录
内容提要………………………………………………………………………Ⅰ
Summary………………………………………………………………………Ⅱ
第一部分设计说明书
1 概述…………………………………………………………………………1
原始资料分析……………………………………………………………1
运行方式的确定………………………………………………………3
2 短路电流计算……………………………………………………