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.
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.
这台机器装配了更大功率的电动机。
This machine has been fitted with an electromotor of larger power.
对短时工作电动机最大功率的测量是困难的，要在标准电源、标准环境温度下的测量更加困难。
It's quite difficult to test the maximum power of the electric motor for short - time work, not to mention the measurements under standard voltage and temperature. Nowadays.
它采用大功率的SCR组成电压调节电路，这样交流电动机就可以低压起动。
It adopts SCR with large power to establish the voltage adjustment circuit, so the AC motor can be started with low voltage.
三相交流自调速电动机不使用大功率电子器件，也没有外部附加的调速设备，不产生污染电网的谐波。
The three-phase AC self-regulating speed motor do not use high-power electron device, has non exterior additional speed-regulating equipment and does not bring pollution.
采用新型大功率器件IGBT研制了一台幅压供电直流电动机无级无触点起动器。
A stepless and contactless IGBT starter for amplitude voltage DC motor has been manufactured.
我国发电能耗大部分消耗于大功率高压交流电动机；
Most of China's energy is consumed by high power and high-voltage AC motors;
我国发电能耗大部分消耗于大功率高压交流电动机；
Most of China's energy is consumed by high power and high-voltage AC motors;
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