Food intended to be eaten hot, but not supplied hot – fish and chips bought in a supermarket – is zero rated. 应该趁热吃但店里不趁热提供的(比如在超市里买的鱼和薯条)就是零税率。
The Measurement of Zero Sequence Current Transformer Rated Ratio 零序电流互感器变比的测量
The findings offer the reliable foundation and effective method to the design of the zero even negative voltage regulation on rated load. 这为设计额定负载时低甚至零电压调整率的永磁同步发电机提供了可靠的依据和有效途径,减小了设计中的盲目性。
To realize that the torque could linear control by Iq, The conventional method is set excitation-current ( Id ) to zero, which would result in the max speed can not exceed the rated speed, and the torque output can not meet the demand of spindle motor. 普通永磁同步电动机为了实现力矩随电流线性可控,一般将励磁电流设为零,这种控制策略将导致电机的最高转速不能超过额定转速,转矩输出能力也不能满足主轴电机的要求。