文档介绍：河南机电高等专科学校
毕业设计论文
论文题目:某市“FYJ”高层商住(综合)大厦10kV配电房设计
系部: 电气工程系
专业: 供用电技术
班级: 2004级041班
学生姓名: 王凯
学号: 0432131
指导教师: 姚娟
2007年 06月 10日
摘要
本设计针对“FYJ”高层商住综合大厦供电配电系统设计的要求,首先对大厦的功能设计进行总体分析,接着对负荷,短路电流,无功功率补偿等进行了计算,对主要的电气设备进行了保护,对变压器进行了瓦斯保护和电流速断保护,对防雷接地进行了设计,最后对电力行业的发展进行了展望。
“FYJ”高层商住综合大厦中住宅用电负荷—三级,群楼取照明负荷—三级,群楼一般动力负荷—三级,客梯、扶梯、消防泵、楼梯照明,事故照明重要负荷—一级。采用标幺制法进行短路计算,采用10kV电压等级作供电源,低压配电系统采用380/220V电压等级,即电压选择为10KV/,采用一路10KV专用架空线路作为主电源,选用一台环氧树脂浇铸变压器出线,柴油发电机作为第二电源, 瓦斯保护和电流速断保护相配合构成完整的变压器保护,大厦过电压保护装置选择氧化锌(ZnO)避雷器,采用TN-S接地形式,接地保护线PE与中性线(工作接地)严格分开,只在配电房连接并接地。这些构成了完整的大厦供电配电系统设计。
关键词:短路电流,输电线路,变压器,避雷器
ABSTRACT
This design aims at "FYJ" a pany to prehensive the mansion power supply go together with a request that give or get an electric shock system's design, first to the function design of mansion carry on the president's analysis, immediately after to the burden, short-circuit electric current, without achievement pensate etc. carried on a calculation, to the main electricity equipments carried on a protection, to the transformer carried on gas protection and electric current soon break a protection, connect ground to carry on a design towards defending thunder, finally to the development of electric power profession carried on an outlook.
The "FYJ" pany prehensive the residence in the mansion use electricity to carry-x-rated, the cluster building takes illuminate to carry-x-rated, cluster the building is general motive burden-x-rated, guest steps, hand ladder, fire fight pump, stairs illuminate, the trouble illuminate important burden-one adoption mark Mao method for making carry on short circuit calculation, adopt the 10 kV electric voltage grade to make a power supply source, the low pressure goes together with electricity system to adopt the electric voltage grade of the 380/220 V, namely the electr
ic voltage choose for the 10 KV/ KV/ KVand adopt all the way the 10 KV's appropriation build on stilts circuit as main power supply and choose