城网110kV变电站采用更大容量变压器的研究

Research on 110 kV Substation with Larger Capacity Transformer in Urban Network

针对我国城市用电负荷不断增大以及电网建设和城市用地矛盾日渐突出的问题,提出可在城市110kV电网采用更大容量变压器。对采用更大容量变压器和常规变压器的经济性进行了比较,并对采用更大容量变压器可能引发的短路电流、额定电流大的问题给出了解决方案。

Aiming at the problems that load in urban network keeps on increasing,the contradiction between network construction and land occupation in urban area emerges gradually,larger capacity transformer is proposed to apply in 110 kV urban network.The economical performance of larger capacity transformer is compared with that of regular one.Solutions to deal with problems,like short current and big rate current,possibly caused by larger capacity transformer are submitted.