变电站二次回路的发展趋势

Development tendency of secondary circuit in substation

通过对常规变电站和自动化变电站的二次回路模式及数字化变电站二次系统的简介,指出了常规变电站及现存自动化变电站二次回路存在的问题.同时指出,变电站要想从根本上解决间隔层与过程层设备的互操作、电磁式互感器测量误差、二次回路复杂、控制电缆引起的电磁干扰、一次设备智能化等问题,必须依靠数字化二次回路.

By means of introducing the secondary circuit in conventional substation,automation substation and digital substation,the problems in conventional substation and automation substation are pointed out.At the same time,only depending on the digitized secondary circuit,problems of interoperability,traditional electromagnetic instrument transformer,secondary circuit,electromagnetic interference caused by control cable and making the primary equipment intelligent can be solved.