但是由于其周围温度环境(辐射、热传导及对流状况等)与电机内部的发热规律不一致，所以不能对电动机进行有效的保护。
But because of the temperature environment (radiation, heat conduction and convection) and the internal heat of the motor is not consistent, so we can not effectively protect the motor.
在电动机内能量的耗散率是多少？
该传感器可以安装在电动机内端盖处，电机定子与转子端部漏磁都不影响传感器的工作和测量精度。
The sensor can be fixed under the electromotor's end bracket. Leakage flux of motor stator and rotor does not affect the activity and measuring accuracy of the sensor.
它具有控制结构简单、物理概念明晰、对电动机内部参数依赖少、转矩响应迅速和易于数字化实现等优点，在交流传动领域越来越多地受到学者、专家们的关注。
It has many merits, its structure is very simple and the principle is clear, and the response of torque is rapid and little dependence on the interior parameters of the motors, and easy digitization.
针对笼型感应电动机内产生高频杂散损耗的原因、分析计算方法以及降低这些损耗的措施等方面，进行了深刻的分析和阐述。
The paper descirbes several methods for the measurement of the stray loss of thee-phase asynchronous motor, and analyzes the amount of thray loss by using different measuring ways.
所得结果表明，双极永磁球形电动机内部电磁关系简单，易于实现对转子位置的控制。
The model shows that the electro-magnetic coupling relationship inside the two-pole PM spherical motor is simple and that the torque of the motor is easy to control.
在感应电动机无速传感器矢量控制系统中，在负载条件下转子速度估计的精确度对电机内部模型参数误差非常敏感。
The accuracy of the rotor speed estimation in speed sensorless vector control system of induction motor under load is sensitive to parameter errors of the internal machine model.
混合式步进电动机内部是径向和轴向混合的磁系统，气隙或齿层的磁场沿电机轴向非均匀分布，将问题简化为二维磁场后要得到精确结果有一定的困难。
There are mixed magnetic field system of axial and radial in hybrid stepping motors, and the magnetic field in the gap (or teeth layer)is distributed uneven along the axial direction.
定子槽楔是电动机内部的一种绝缘材料，通常由人工或机械方式打入定子内。
Stator shafts wedge is an insulation material within the electric motors, usually by manual or mechanical means into stator.
为充分利用电动摩托车轮毂电机内部空间，提高电机的驱动转矩，该文设计了一款双定子结构的永磁电动机。
To improve the driving torque and increase the inner space utilization rate of wheel hub motor on electric motorcycle, a double-stator permanent magnet motor was reported in this paper.
目前对操作过电压的研究多数只是宏观监测、分析过电压波形，而没有深入研究电动机内部的电场分布及其变化情况。
Now, most researches on over-voltage is just done on monitoring and analyzing the over-voltage waveform, but not studying the deeply electrical fields.
所得结果表明，三维电动机内部复杂的电磁耦合关系是造成三维电动机难于控制的关键原因。
The results show that it is the complex electromagnetic coupling inside the 3dm that makes it difficult to control.
异步电动机内部存在三种磁链，即转子磁链、气隙磁链和定子磁链。
In asynchronous machine there exist main kinds of flux linkage, that is: rotor flux-linkage, air-gap flux-linkage and stator flux-linkage.
异步电动机内部存在三种磁链，即转子磁链、气隙磁链和定子磁链。
In asynchronous machine there exist main kinds of flux linkage, that is: rotor flux-linkage, air-gap flux-linkage and stator flux-linkage.
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