摘要本文提出了有关南宁110kv变电站设计的相关方案。电力网络是电能传输的载体，变电站作为电力网络中的变电环节最重要的组成部分，它的稳定运行与否直接影响到电力系统的运行效率。南宁是广西的首府，是广西发展最为迅速的城市，城市内的负荷密度也随之迅速提高，增建新的变电站以减少每个变电站的供电半径能有效提高用户的用电质量。所以针对特定区域的110kV变电站方案设计具有实际意义。该设计通过分析变电站的原始数据，并通过对该方案的可靠性，灵活性和经济性分析和相应的负荷分析计算，确定可选择的电气主接线方案，为设计的110千伏变电站确定电气主接线方案。根据短路电流计算，选择110kv变电站的主要设备，主要设备通过电气设备的短路稳定性和热稳定性验证。最后，为该110kV变电站的防雷和继电保护配置提高了方案。关键词：电气主接线负荷分析短路电流计算保护配置AbstractIn this paper,the design scheme of Nanning 110 kV substation is presented.Power network is the carrier of power transmission.Substation is the most importantpart of power network,and whether its stable operate or not directly affects theoperation efficiency of power system.Nanning is the capital of Guangxi and thefastest-growing city in Guangxi.The load density in the city also increases rapidly.Adding new substations to reduce the power supply radius of each substation caneffectively improve the quality of power consumption of users.Therefore,the schemedesign of 110kV substation for a specific area has practical significance.Through theanalysis of the original data of the substation,and through the reliability,flexibilityand economy analysis of the scheme and the corresponding load analysis andcalculation,the main electrical wiring scheme for the 110 KV substation is determined.According to the calculation of short-circuit current,the main equipment of 110 kVsubstation is selected.The main equipment is verified by short-circuit stability andthermal stability of electrical equipment.Finally,a scheme is provided for thelightning protection and relay protection configuration of the 110kV substation.Keywords:Electric main connection;Load Analysis;Short-circuit currentcalculation;Protection setting目录1.2负荷分析及其结果.第二章电气主接线设计和变压器选择…42.1电气主接线的设计原理42.2主接线方案的拟定.42.3主接线的基本形式和特点52.4110kV变电所主接线方案与比较72.5变压器的选择8第三章短路计算…3.1短路电流计算的目的…3.2短路电流计算的规定、假设条件和步骤3.3短路电流计算的过程和结果.11第四章电气设备的选择…144.1电气设备选择的要求和原则4.2断路器的选择与校验.154.3隔离开关的选择与校验.4.4电流互感器的选择..214.5电压互感器的选择…244.6母线的选择…4.7无功补偿装置的选择.26第五章结论.…29谢辞