110kv中间变电站主系统 毕业设计.docx

毕业设计中间变电站主系统初步设计学生: 学号: 专业:电气工程及其自动化班级: 2009 指导教师: 自动化与电子信息学院二O 一三年六月 I 中间变电站主系统初步设计摘要:此次设计是对 110KV 、 35KV 和 10KV 三个电压等级变电所的一次部分进行初步设计。首先通过对变电站的原始资料的分析,从可靠性及经济性方面考虑,确定了变电所的主接线;然后又通过负荷计算确定了主变压器台数、容量及型号。根据短路计算的结果,对变电所的一次设备进行了选择和校验。最后对变电站继电保护方案和防雷保护方案的设计。关键词:电气主接线设计;短路电流计算;导体及电气设备选择;继电保护; 防雷保护 II Main System Preliminary Design Of Intermediate Substation ZHOU Chengyou (Sichuan University of Science and Engineering, Zigong, China, 643000) Abstract : This design is for 110 kV, 35kV and 10kV substation voltage level of the three parts carries on the preliminary design. First of all, through the analysis of the substation of the original data, from the reliability and economy into consideration, determine the substation main wiring; Then through load calculation to determine the main transformer sets, capacity and model number. According to the result of short circuit calculation of substation equipment selection and calibration. Finally, substation relay protection scheme and the design of the lightning protection scheme. Key words: Main Electrical Connection Design ; Short-circuit current calculation ; Conductor and electrical equipment to choose ; Protection relay Substation lightning protection and grounding protection. III 目录摘要................................................................................................................................. I Abstract ......................................................................................................................... II 第1章引言..................................................................................................................... 1 概述........................................................................................................................ 1 设计原始资料........................................................................................................ 1 设计任务...............................................................................................................