For the receiving end, a new switchingcriterion based on the bus voltage is described, which is immune to the system parameters.
对受端继电器，提出仅利用保护安装处的电压变化值构成同相点切换判据，可以有效降低系统参数的影响。
2
As the results of calculation and simulation accord with the experimental data, criterion for identifying power switching pot and switching time of the energy saving motor is offered.
计算和仿真结果与实验数据相吻合，这为节能电机功率切换点和切换时间的确定提供了依据。
3
Adopting this criterion, the switching times of loaded taps can be efficiently decreased and the voltage quality improved, while the var control times and var compensation effect keep unchanged.