简述了大功率电动机故障产生原因、诊断方法。
This paper introduced briefly the cause of disturbance, diagonal method of multi-functional protecting circuit for large-power motors.
本发明涉及电动机制造领域，公开一种小体积大功率电动机。
The invention relates to the field of electromotor manufacturing and discloses an electromotor with small volume and big power.
介绍了一种用于检测大功率电动机电量的IC卡式电量检测装置及其数据处理软件。
This paper presents a type of electrical quantities detection equipment that using IC card as data store tool and its data processing software used on detecting high power motor electrical quantities.
由于节省了大功率电动机及大功率变频器系统等原因，整个测试台的建造成本大幅度降低。
The cost of the test floor has decreased greatly because it has saved the large power electromotor and the transducer.
本文对中压大功率电动机变频调速的技术特点和电路结构进行了分析，阐述了多电平变频器的工作原理。
The technical features of medium voltage high power inverter and the basic structure of its electric circuits are analyzed.
本文介绍了几种适用于大功率电动机起动的软起动装置的工作原理，对其技术、经济性进行了比较，探讨了软起动装置在大型设施中应用的可行性。
This paper introduced some operation principles of soft start for high power electro motors. Comparisons were also made in technical and economic bases to find application in large facilities.
这架飞机有一个12马力(8.9千瓦)的汽油机——并不比Piccard先生的太阳脉冲号上4个6千瓦的电动机功率多。
It had a petrol engine producing 12 horsepower (8.9kw) -not much more than each of the four 6kw electric motors on Mr Piccard's Solar Impulse.
该电动机无法输出给定的额定功率。
电动机的输入功率是多少？
根据企业的电网电压标准和对功率因数的要求，确定电动机的电压等级和类型。
Grid voltage in accordance with corporate standards and requirements for power factor to determine the motor's voltage rating and type.
伺服电动机更容易控制，但是他们的功率都比较小，需要明确的电压，andarelessintuitive。
Servos are much easier to control, but they generally are less energy efficient, have explicit voltage requirements, and are less intuitive.
我可以作一个小小的赛道与直流电动机来衡量的实际输出功率的引擎在不同进气压力。
I may make a small dyno with a DC motor to measure the actual power output of the engine at various intake air pressures.
开关磁阻电机是由功率开关电路、双凸极磁阻电机及控制器构成的新型调速电动机系统。
The switched reluctance drive is a new variable-speed motor system which consists of power electronically-switched circuits, doubly salient reluctance motor and controller.
电动机功率密度大、效率高。
动力参数包括：电动机功率、额定转速、电机型号等。
Power parameter include: motor power, rated speed, motor model, etc.
如果更多的电力需求是间歇性，发动机的功率可补充电动机在电源时，需要更多的时间。
If demand for more power is intermittent, the power of the engine can be supplemented by an electric motor during times when more power is needed.
在大功率晶体管逆变器——电动机驱动系统中，它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制，而且能快速地检测出故障电流。
In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
车由一台功率达80千瓦的电动机和锂离子充电电池提供动力，将于明年末投放日本和美国市场。
Powered by an 80kW electric motor and rechargeable lithium-ion battery, the Leaf will be introduced in Japan and the US late next year.
对于电动机起动需要控制起动电流和转矩震动的问题，采用双闭环的控制方案，即电流闭环控制和功率因数角闭环控制。
As for the problem the high current and the vibration of the torque, the double closed loops which include the current and power factor Angle are worked out.
针对小功率直流力矩电动机的定位控制问题，提出了一种新的模糊控制策略。
According to the problem of position of DC torque motor, an new fuzzy control way was put forward.
稀土永磁同步电动机具有效率高、功率因数高的特点，是一种高效节能产品。
High efficiency and high power factor are characteristic of rare earth and permanent magnetism and synchronous motor. lt is a energy saving product.
此种方法改变电动机的输入功率。
同步电动机不但功率因数高，而且其转速与负载大小无关，只决定于电网频率。
Not only high power factor synchronous motor, and its speed is independent of the load, depends only on grid frequency.
仿真结果表明，此功率因数控制系统在空载和轻载时，可节能30%—50%，本论文为异步电动机的节能运行提供了重要的参考作用。
The simulation result demonstrates that it can save up capacity about 30-50% when there is no load or a little load. This thesis can provide important reference function.
推导出了按电动机功率，通过热力学逆运算，确定压缩机结构参数的计算公式。
The calculating formula of determining compressor structure parameter is derived by thermodynamic counter calculation based on motor power.
以变速驱动压力机的工作负荷、运动特点、工作总功、力矩和角动量为基础，计算其驱动电动机所需的功率。
And then the power of servo motor is calculated according to crank press working load, kinematical characteristic, torque and rotational momentum.
得出了电动机功率过大是其主要原因的结论。
The conclusion that the over big motor power is the main reason is obtained.
本文介绍了异步电动机的效率、功率因数和其他参数的特性。
This paper describes the efficiency, power factor and other parameter features of the synchronous electric motor.
本文介绍了异步电动机的效率、功率因数和其他参数的特性。
This paper describes the efficiency, power factor and other parameter features of the synchronous electric motor.
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