主变出口矩阵测量系统开发与应用

Development and Application of the Measuring System of the Main Transformer Exit Matrix

主变出口矩阵测量系统开发与应用,是通过研究传统的测量方法,开发以单片机为硬件载体,以C语言编程的微机测量系统。以出口压板电位变化为触发条件,配合单片机记录动作时间,同时通过液晶面板显示各出口动作情况,配合保护试验仪,试验仪输出故障时同时输出开出接点给系统,系统开始计时,压板电位变化时记录下压板动作时间。通过合理的软硬件设计,系统具有准确、全面、操作简单、结果直观可视及安全等特点。方便继保人员在对主变、母差、备自投等多出口保护装置及安自装置定检时测量出口的动作情况。

The development and application of the measuring system of the main transformer exit matrix is a tranditional measuring method, developing one chip computer as a hardware carrier and Clangnage programming microcomputer meas- uring system. Take potential change of the exit clamp as trigger condition, matching the one chip computer recording ac- tuatin time, meanwhile the exit actuation is showed by the ciquid board, to match protection test instrument. When the test instrument output fault happens, the output point is connected to the system and the system starts timing. When the clamp potential changes, record the down pressure board actuation time. By proper software and hardware design, the sys- tem has features of correct, overall, easy operation, direct result and safety and so on. It is convient for the operators to check actuation conditions of the main transformer and other protection devies.