The winding through which a current is passed to produce the primary source of flux in the machine is called the field winding.
电流通过其在电机中产生主磁通的绕组称为励磁绕组。
In this paper, the breaking transient formulas of terminal voltage and field current of synchronous machine with three phase symmetric load have been derived.
本文导出了同步电机三相对称负载突然拉开，电机端电压与励磁电流在瞬态过程中的解析表达式。
The paper introduces a transformation by PLC and frequency-changer in the light of current lashing problem of drawing-oil tube cleaning machine in oil field enterprises.
本文针对油田企业中抽油管清污机中存在的冲击问题，用PLC、变频器等对其控制进行了改造。
Finally, a series of field and laboratory tests have been carried out with this sample machine, which provides data support for further study on the rule of insulator leakage pulse current.
最后，利用该样机，完成了一系列线路实测和实验室试验，为进一步研究绝缘子泄漏脉冲电流的规律提供数据支持。
Based on the theory of vector control and automatic control system, the vector control system of current model for doubly-fed asynchronous machine with field-oriented rotor was established.
根据矢量控制理论和自动控制原理，建立了转子磁链定向的双馈异步电动机电流模型矢量控制系统。
The utility model belongs to the technical field of electric machines, particularly a high-voltage direct-current permanent magnetic small and special electric machine.
本实用新型属于电机技术领域，具体涉及高压直流永磁式微特电机。
The utility model belongs to the technical field of electric machines, particularly a high-voltage direct-current permanent magnetic small and special electric machine.
本实用新型属于电机技术领域，具体涉及高压直流永磁式微特电机。
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