不同联接组的三相变压器状态在线检测方法研究

Research on online detectiving of different connecting group transformer

本文在以前介绍的在线检测三相变压器空载损耗、负载损耗的方法基础上,针对不同联接组以及带N线的三相电力变压器给出了相应的算法。实现了D／y,D／y0,D／d以及Y0／d联接组三相电力变压器空载损耗、负载损耗的在线检测,完善了变压器这些运行状态参量的在线检测方法体系,这种测量方法是通过对变压器原副方电压电流实时量的运算来实现的。

This paper shows the algorithms on sevaral different kinds of connecting group power transformer, including those with neutral wires,like D/y,D/y0,D/d and Y0/d, based on the method to online-detective the open circuit loss and the load loss of the there-phase transformer presented before. It operates the real-time voltages and currents of the transformer.