建设20kV配电网 提升城市电网供电能力

Constructing the 20 kV Distribution Network to Enlarge the Power Supply Capacity of the Urban Network

提高配电网电压等级是提升城市电网供电能力的有效途径。阐述了福州地区负荷发展态势,比较了对10 kV和20 kV电压等级线路的供电半径和输送容量,以及对短路电流和110 kV变电所主变压器容量的影响。提出了福州地区建设20 kV配电网的若干措施。

To lift the voltage level of distribution network is an effective method to enlarge the power supply capacity of the urban network. This paper describes the developing situation of electric load in Fuzhou, compares the power supply radius and transmission capacity of 10 kV and 20 kV voltage level, their influence on shortcircuit current and the main transformer capacity in the 110 kV substation, and presents some measures adopted in the construction of 20 kV distribution network in Fuzhou