配电变压器参数测量

Parameter measuring of distribution transformer

介绍了利用功率能量芯片CS5460A测量配电变压器运行参数的一种新方法。利用该方法只需将配电变压器的电压和电流经互感器分别送入CS5460A中的差分电压和电流输入端,就能通过硬件实现对包括电压瞬时值、电流瞬时值、有功功率和无功功率,以及在多周期情况下的电压有效值、电流有效值和电量等全部电气参数的测量。与传统方法相比,此方法硬件电路更简单,在简化了软件编程的同时大大缩短了运算时间,提高了CPU的工作效率。

A new method for parameter measuring of distribution transformer using CS5460A chip is in troduced.The voltage and current of distribution transformer are simply connected to the corre-spond ing differential terminals of CS5460A via voltage and current transducers and the electric parameters are measured by hardware.They are the instanta neous values of voltage,current ,active power,re active power,as well as the virtual values of volt age,current ,electric energy under multi-cycle condition.Compared with traditional methods,its hardware circuit and software programming are sim pler,and the efficiency of CPU is improved.