alternating electric current

英

美

[网络] 交流电流

The paper introduces the application of inverter in mill electro pressing and describes the control method for accuracy stoping alternating current electric drive system by means of direct current braking.
介绍了变频调速技术在轧机电动压下中的应用，主要阐述了利用变频器直流制动功能实现交流拖动系统准确停车控制的设计方法。
The sensor used unbalanced principle of alternating electric field around feed cable to detect the state of electric field of cable core over the ground, thereby got out the result that the feed state of cable in mine had no relation to the current in the cable.
该传感器利用馈电电缆周围交替电场的不平衡原理检测电缆芯线对地的电场状态，从而间接检测出矿井电缆的馈电状态与电缆是否有电流无关。
Based on the polarization theory in alternating electric field, combined with the current response process of the grain boundary layer in high-frequency voltage, MOA transient circuit model is composed.
根据交变电场下电介质的极化作用原理，分析晶界层在高频电场作用下的电流情况，提出了MOA的暂态电路模型。