某2×660MW火力发电厂电气部分设计..docx

上海电力学院本科毕业设计（论文） 题 目：某2×660MW火力发电厂电气部分设计院 部：电气工程学院专业年级：学生姓名：学号：指导教师： 年 月 日【摘要】本文为某2×660MW发电厂的电气部分设计，完成了厂用电系统的设计，厂用变压器的型号为SFF9-50000/24，厂用电压等级为6KV；确定了电压等级不同的地方的接线，主变压器的型号FPZ-800000/500；通过短路校验确保了设备的安全性；选取并校验了合理的电气一次设备；确定了500KV选用屋外配电装置，6KV选用成套配电装置；进行了避雷针的配置和保护范围的计算，选取FCZ-550磁吹阀型避雷器；配置了合理的继电保护装置。关键词：发电厂、主接线、电气设备、短路电流、防雷保护【Abstract】The for a 2 * 660MW power plant electrical part of the design, completed the plant electrical system design, plant types of transformers for SFF9-50000/24, factory voltage grade for 6kV; determine the connection of different voltage levels, main transformer model FPZ-800000/500; through the short-circuit check to ensure that the equipment safety; select and check the reasonable electrical equipment; determine the selection of 500kV Outdoor Switchgear 6kV selection and distribution of complete sets of equipment; calculate the lightning rod and the scope of protection configuration, select FCZ-550 magnetic blowout valve type lightning arrester; reasonable relay protection device is configured. Key words: power plant, main wiring, electrical equipment，Short circuit current, lightning protection目录摘要---------------------------------------------------2Abstract-----------------------------------------------3第一章.前言--------------------------------------------6第二章.厂用电系统的设计--------------------------------72.1 概述-----------------------------------------------72.2 厂用负荷的统计-------------------------------------72.3 厂用电电压等级-------------------------------------92.4 厂用电的供电电源-----------------------------------102.5 厂用变压器的选择-----------------------------------102.6 厂用电接线-----------------------------------------112.7自启动校验------------------------------------------12第三章.电气主接线--------------------------------------143.1 概述-----------------------------------------------143.2 主接线的选择---------------------------------------143.3主变压器的确定-------------------------------------16第四章. 短路电流计算-----------------------------------184.1 短路计算的目的-------------------------------------184.2