摘要
随着国内经济的快速发展,用户负荷密度增大,10kV配电网络容载比已不能满足负荷的增长,严重影响供电可靠性。介绍了20kV电压等级在国内外的应用情况,分析了其相对于10kV、35kV电压等级的优势,指出20kV电压等级在国内城网改造以及新规划的城市高负荷新区电网建设具有广泛的应用前景。
With the rapid development of domestic economy and increasing of users load density,10kV power distribution network load carrying ratio had not met the growth of load,which seriously impacted on the reliability of power supply.Introduction was made to applications situation both at home and abroad,its advantages in contrast to 10kV and 35kV voltage grades analyzed.It is pointed out that 20kV voltage grade is with broad applicable prospect for city power grid reformation and newly planned city＇s high load new district power grid building at home.
出处
《电工电气》
2011年第8期1-4,共4页
Electrotechnics Electric
关键词
20kV电压等级
中压配电网
线损
供电半径
20kV voltage grade
medium-voltage power distribution network
line loss
power supply radius
