Linear Phase Angle between Current and Voltage. 电流及电压线性相位角。
Each phase angle, whether positive or negative, is referenced to the horizontal. 每个相角不论是正的还是负的，都是相对于水平轴来说的。
Are you absolutely positive that it was after midnight? 你是否有绝对把握认为那事是在午夜以後发生的?
A phase A fundamental positive sequence voltage selected unit based on LPF substitutes for the original ip-iq PLL to ensure exact voltage of A phase is selected even in case of imbalance three phase voltage. 并采用一种新颖的基于低通滤波的A相正序电压提取单元来代替原始的ip-iq检测法的PLL锁相环,在三相电压畸变情况下仍可以正确提取A相正序电压,以精确检测出谐波和无功电流。
The positive sequence and negative sequence currents of the fault phase are analyzed , the mathematical model of stable fault character of stator winding＇s inter-tttm short circuit are built. 基于复合序网对一台大型汽轮发电机并列运行时匝间短路的故障量进行计算，将特征数据输入神经网络进行识别。