35kV 变电站主接线设计 摘 要电网的供电质量需求日趋增大，经济的发展和人民生活水平提高的同时，我国对城镇和农村的电网建造非常重视。所以，城镇和农村的 35kV 变电站建造就成为了国家拉动城镇和农村经济发展的基本动力。变电站的建设会受到很多因素的影响，比如：选址地点电气设备选型经济性、和其他各种条件。合理地设计一个 35kV 变电站的主接线，变电站的安全可靠运行会影响城乡经济发展，是城镇电网和农村电网建造中重要的研究。而变电站是电力系统的重要组成部分，本次设计会根据任务书上所提到的要求，假设某地的负荷环境状态来分析、计算负荷需求，选择电气设备类型。本次设计将会从当前负荷情况日后负荷增长方面阐述建设 35kV 变电站的必要性，考虑到电气主接线设备的可靠性、经济性和安全性，选择了 35kv、10kv 的主接线设备和匹配的母线和电缆。根据上述条件，决定主接线的负荷计算和供电范围，决定主变压器的数量、容量、种类，然后进行最大分断电流计算公式所得出的结论，选择对应的断路器、隔离开关、电缆母线、电压互感器、电流互感器。最后对变压器进行后备保护计算和选择后备保护类型，完成本次 35kV 主接线设计。关键词：变电站，负荷计算，一次系统35kV substation main wiring designAbstractDue to the increased demand for China's quality, economic development, and improved living standards, China has been highly rated for the construction of urban and rural power grids. Therefore, the construction of 35kV substations in urban and rural areas is the basic driving force for the country to promote urban and rural economic development. The construction of substations is affected by many factors, such as site selection, economic choice of electrical equipment, and other conditions. The rational design of the 35kV substation main line is an important study of urban and rural power grid construction. The safe and reliable use of the substation has affected the development of urban and rural economy. Substations are an important part of the power system. According to the requirements mentioned in th...
