【摘要】 介绍了一种新型的交点相角法功率方向元件 ,这种新型的功率方向元件是利用电流、电压相量的波形之间的交角作为动作判断量 ,其动作死区极小 ,且构成较为简单 ,因此比传统的功率方向元件更为优越更多还原

【Abstract】 A nodal phase_angle power directional unit is presnted. The unit uses a phase angle between waveform of voltage and current as criterion.The dead zone is extremely small and its circuit structure is simple.Therefore,this new power directional unit is more better than traditional one.更多还原