特高压变电站110 kV并联电容器接线方式与耐爆能量分析

Analysis on 110 kV Shunt Capacitor Connection Mode and Explosive Energy in UHV Substation

在确定特高压变电站内并联电容器组的接线方式时,耐爆能量是一个非常重要的参数。针对特高压变电站110 k V并联电容器常用的单星形双桥差接线方式,推导出该接线方式下的电容器组故障分析模型,并对桥臂采用不同串并联方式时的故障电容器进行耐爆能量验证计算,得出最优的桥臂接线方案。

The explosive energy is an important parameter in the design of shunt capacitor bank connection mode in UHV substation.In this paper,Failure analysis model is deduced from single star double bridging differential mode of 110 k V shunt capacitor in UHV substation.The optimal connection scheme of the bridge arm is obtained by the verification calculation of fault capacitor explosive energy in the different scheme of serial and shunt design inside the bridge arm.