浅谈采用20kV作为配电电压的优越性  

Initial Discussion on the Superiority of Adopting 20kV as the Distribution Voltage

作　　者：胡祖梁[1] 

机构地区：[1]上海大学建筑设计院,上海市200072

出　　处：《建筑电气》2010年第2期21-23,共3页Building Electricity

摘　　要：随着大城市中高层建筑群的崛起,以及工业技术开发区和大型住宅小区的形成,电力负荷剧增,负荷密度增大,传统的10kV配电方式已难以承受。介绍采用20kV配电的优越性。指出由10kV中性点不接地系统改为20kV中性点小电阻接地系统,应注意系统的绝缘水平、耐压,以及开关的开断性能等问题。With the growing up of tall buildings, the forming of industrial technology development zones and large-scale residential districts in large cities, the electrical load and load density are rapid increasing, thus the conventional power distribution mode of 10kV cannot keep pace with it. The superiority of adopting the 20 kV distribution mode is introduced. The article points out that attention should be paid to issues of insulation levels, voltage withstanding and switch breaking performance when changing from a 10kV neutral points ungrounded system to a 20 kV low-resistance grounded system.

关 键 词：20 KV 配电电压等级 负荷密度 电器配套 

分 类 号：TM727[电气工程—电力系统及自动化] TM862