三相异步电动机的轻载运行，是很不经济的。
The running of electric motor with light load is not economic.
三相异步电动机运行过程中断相运行危害极大。
It is very dangerous that the three phases asynchronous motor is operated after certain phase was broken off.
YS系列三相异步电动机符合IEC标准的有关规定。
YS Series three-phase asynchronous motor meets related stipulations of IEC standard.
分析三相异步电动机产生断相错相运行的原因及其危害性。
This paper analyzed the reasons and its dangerous of phase failure and phase stagger operation for three-phase asynchronous motor.
三相异步电动机出现异常振动，使设备运行存在着不安全隐患。
The vibration fault of three-phase induction motor makes the equipment run unsafely.
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。
This article introduced the coal enterprises three-phase asynchronous motor integrated digital protection systems.
阐述了新系列高压隔爆型三相异步电动机的特点和设计所采取的措施。
The characteristics and the steps to be taken in designing of new series for high voltage flame proof three phase induction motors are discussed.
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。
The application of Ethernet technology in automatic testing system for three-phase asynchronous motor routine test was introduced.
YD系列变极多速三相异步电动机是三相异步电动机的主要派生系列之一。
YD series varible pole multi-speed three-phase asynchronous motors are one of the main series products deriving from three-phase series.
交流三相异步电动机的广泛使用，对电动机的启动提出了越来越高的要求。
The broad application of AC three - phase asynchronous motor has put higher requirements to the starting of motors.
这种新方法的基础是零序变压器在三相异步电动机断相时输出一个电压信号。
Use is made of that zero-sequence transformer outputs a voltage signal when phase-failure occurs in three-phase induction motor.
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。
By applying equivalent circuits, this paper has analyzed three-phase asynchronous motor property and the harm to generator under asymmetrical voltage.
本文用最小二乘法拟合的直线确定三相异步电动机风摩耗测量的标准不确定度。
This paper determines standard uncertainty for measurement of windage and friction loss of three-phase induction motor through fitting line of least square method.
本文研究一种基于数字信号处理器（DSP）的三相异步电动机变频调速系统。
The variable frequency variable speed system of three-phase asynchronous motor based on DSP has been researched in this paper.
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；
YS series three-phase asynchronous motor has excellent starting and running performance and is simple in structure, easy to operate and maintain.
本文论述了对于鼠笼型三相异步电动机在智能控制中的几种起动方式及其优缺点。
This article presents several start ways of rat cage type three photograph asynchronous motor in intelligent control and its advantage and shortage.
考虑三相异步电动机起动过程挤流效应对参数的影响，建立了变参数的等效电路。
Considering the effect of the skin-effect during the starting of three-phase asynchronous motor on the parameter, the author sets up an equivalent circuit of variable parameter.
本文论述了对于鼠笼型三相异步电动机在智能控制中的几种起动方式及其优缺点。
This paper discuses several start form and the advantage and disadvantage of 3 - phase asynchronism electromotor in aptitude control.
利用变频技术对三相异步电动机进行变频调速，方便地模拟了车辆发动机不同转速。
Using the technique of frequency conversion in three-phase motor, it is convenient to simulate vehicles engine in differ rotate speed.
本文针对三相异步电动机起动电流较大的问题，设计了一种软起动模糊自适应控制器。
Considering the large startup current of induction motors, this paper presents a fuzzy Aaptive control soft starting system.
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。
The mathematical model of three-phase asynchronous motor in rotating coordinate system is established, and PWM technology of space vector is discussed.
通过对三相异步电动机空载实验中遇见的故障——三相相间功率的极大不对称性进行分析。
Through analyzing the asymmetry about the power among three phase of the no-load experiments of the triphase asynchronous motor is designed.
本文简述了三相异步电动机运行中的效率、功率因数、负载率和功率的关系及各种节电措施。
This paper explained in brief the relation of three-phase asynchronous motor among efficiency, power factor, load rate and power and every power saving measures.
实验结果表明用SVPWM技术和矢量控制技术可以成功实现三相异步电动机变频调速功能。
The experimental results show that the vector control and SVPWM technology used in the system is successful.
以三相异步电动机为研究对象，从电动机调速的实质出发，对异步电机的矢量控制进行了研究。
A three-phase asynchronous motor is taken as a research object. From the crux of a motor speed governing, the vector control of the asynchronous motor is studied.
本实用新型公开了一种三相异步电动机能耗制动电路。它由三相异步电动机与主控接触器构成。
The utility model discloses an energy consumption braking circuit of a three-phase asynchronous motor, which is composed of a three-phase asynchronous motor and a main control contactor.
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。
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.
介绍三相异步电动机起动时，通常按照一定的时序接通或关断2到3台接触器来实现电动机的起动。
When start up a 3-phase asynchronous motor, it is generally realized by energizing or de-energizing 2 to 3 contactors in a certain time order.
YLT系列三相异步电动机是我公司专为冷却塔设计的低噪声三相异步电动机，也可适用于低噪声风机上。
YLT series three phase asynchronous induction motors are specially designed for the cooling tower, which is with low noise, also are suitable for the low noise air blower.
YLT系列三相异步电动机是我公司专为冷却塔设计的低噪声三相异步电动机，也可适用于低噪声风机上。
YLT series three phase asynchronous induction motors are specially designed for the cooling tower, which is with low noise, also are suitable for the low noise air blower.
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