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1·The paper introduces the main performance indexes of double speed three phase asynchronous motor used in electric chain hoist and the problems which occor in the test and manufacture process.

本文介绍了电动环链葫芦用三相双速异步电动机的主要性能指标以及在试制过程中遇到的问题。

2·YS series three-phase asynchronous motor has excellent starting and running performance and is simple in structure, easy to operate and maintain.

YS系列三相异步电动机有优良的启动和运行性能，结构简单，使用和维护方便；

3·The application of Ethernet technology in automatic testing system for three-phase asynchronous motor routine test was introduced.

介绍了以太网技术在三相异步电动机全自动出厂试验系统中的具体应用。

4·The mathematical model of three-phase asynchronous motor in rotating coordinate system is established, and PWM technology of space vector is discussed.

建立了三相异步电动机在旋转坐标系下的数学模型，论述了空间矢量脉宽调制技术原理。

5·Based on practice, the reasons of large and medium-sized high voltage wound rotor three-phase asynchronous motor rotor failure were expounded, and viable approach was designed.

结合生产实践，系统阐述了大中型高压绕线转子三相异步电动机转子产生故障的原因，并提出了可行的处理方法。

6·By applying equivalent circuits, this paper has analyzed three-phase asynchronous motor property and the harm to generator under asymmetrical voltage.

利用等效电路，分析了三相异步电动机在不对称电压下的性能和对电机的危害。

7·During the cage form rotor three phase asynchronous electric motor manufacturing, the electric and mechanical properties of motor are directly influenced by quality of aluminum casting of the rotor.

在电机制造中，笼形转子三相异步电动机的转子铸铝质量的好坏直接影响电机的性能及力能指标。

8·YS Series three-phase asynchronous motor meets related stipulations of IEC standard.

YS系列三相异步电动机符合IEC标准的有关规定。

9·This article introduced the coal enterprises three-phase asynchronous motor integrated digital protection systems.

本文介绍了适应于煤矿企业三相异步电动机全数字化综合保护系统。

10·The three-phase asynchronous induction motor models in EMTDC are deduced and the solution algorithms of induction motor transient process are introduced.

推导了电力系统电磁暂态仿真软件EMTDC中的三相异步电动机模型，介绍了电动机暂态过程的求解算法。