水电站电气一次设计.docx

Document serial number【KKGB-LBS98YT-BS8CB-BSUT-BST108】
水电站电气一次设计
目录
附图
宝鸡市渭河坪头水电站电气一次设计
摘 要：坪头水电站位于宝鸡市陈仓区坪头镇周川村的渭河干流上，是一座利用渭河水力资源发电的低坝无调节引水式电站。,设计引水流量,装机容量10000KW,多年平均发电量3675万KW﹒h,输出电能并入西北电网。
本次设计的主要内容是进行并网电压的选择，升压变电站及输电线路布置，电气主接线及厂用电的方案比较；根据主接线型式选择相应的导线截面、变配电设备，并对其进行优化布置，进而确定各配电室和户外变电站面积及建筑设计要求；主要电器设备的选择与校验，户内外电器设备的布置，厂用电设计及水电站防雷与接地。
关键词：电气一次；电气设备；短路电流计算；防雷接地
Pingtou Hydroelectric Power Station
Preliminary design
Abstract: Pingtou hydropower station is located in treasure chicken Chen cang breaks out ZhouChuan village head of the ping of weihe river, is a use of weihe hydraulic resources to generate electricity without adjusting low dam water type power station. The plant m, design planning head diversion dischage, installed capacity, the average years 10000KW power-demand 3675 million KW cardin h, output power into the northwest power grid.
This design is the main content of choice, boost interconnection of voltage substations and transmission line layout, the main electrical wiring and apc scheme comparison; According to Lord wiring type choose corresponding wire section, transfering &transforming equipment, and carries on the optimum arrangement, and then determines various operations and outdoor substation area and architectural design requirements; Main electrical equipment selection and calibration of internal and external electrical equipment, household decorate, apc lightning protection and grounding design and hydropower station.
Key words: onetime electricity；electrical equipment；electric current of short circuit calculation；thunder proofing and ground connection
第一章 工程概况
工程基本概况
坪头一级水电站工程位于宝鸡市陈仓区坪头镇周川村的渭河干流上，距宝鸡市区35KM。宝鸡峡林家村引水枢纽工程以上陕西境内渭河干流长70KM，平均比降‰，地处深山峡谷，河道蜿蜒曲折，蕴藏着丰富的谁能资源。坪头水电站坝址布置于坪头公路隧道洞以西出口上游200米处的渭河干流上，厂房布置在坪头公路隧道出口以东的桥北侧。为低坝引水式径流水电站，装机10000KW，，。
工程建设条件
工程施工条件
电站工程南靠310国道，北邻陇海铁路，对