三相电动机包括过载保护磁起动机。
Three phase motors, when furnished, include magnetic starters of overload protection.
多相电动机系统与传统三相电动机系统相比具有诸多明显的优势。
Comparing with three-phase motor system, multiphase motor system has some obvious superiority.
三相电动机以三相电源驱动感应电动机，其效率很高，启动力矩也比较大。
Three-phase motor relies on three-phase supply. It has a high efficiency and can get a high starting torque.
本实用新型可使三相电动机的一相断电时使电动机自动断电，从而保护绕组。
The utility model can cause that the power of a motor is cut off automatically, when the power of one phase of the three phase motor is cut off; therefore, windings are protected.
最后提出了防止航空三相电动机过热与起火的方法，包括采用电机在线状态监控、主动维护、增加有效的保护装置等。
Several measures are put forward to prevent the motor from overheating and catching fire, including online monitoring the motor status, maintaining actively and adding effective protection devices.
每根柱都使用一个三相感应电动机进行驱动。
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.
标准型三相感应电动机“，”
阐述了三相异步电动机杂散损耗的测定的几种方法，通过不同的测法分析了杂散损耗的大小，最后通过直流机反转法试验杂散损耗，进行测定分析。
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.
主要介绍一种依据一台三相异步电动机在S1工作制下的运行参数推断该台异步电动机容量不变时在S7工作制下发热情况的方法。
Based on operation parameters of a three phase induction motor at duty type S1, this paper deduces the thermal state of this motor with constant output at duty type S7.
因此，在三相感应电动机的型式试验中，首先必须测试电源电压的波形畸变率。
Therefore the wave form aberration rate must first be tested in the full scale test of tree? Phase induction motor.
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.
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.
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。
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.
三相鼠笼式异步电动机因其结构简单、使用方便、成本较低等优点在工业生产中得到广泛的应用。
The three phase squirrel cage induction motors are widely used in industry, because of its robustness, simplicity and cost-saving.
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.
缺相故障是三相感应电动机的典型故障之一。
Stator phase failure is one typical fault of a three-phase induction motor.
介绍了三相绕线型异步电动机转子波绕组排列图自动生成系统的设计方法。
The paper introduces the design method of auto creating system of arrangement diagram for wave winding of rotor for three-phase asynchronous motor.
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.
本文阐述了对三相交流电动机故障的一种检测方法，并介绍了该检测方法的实验分析及现场应用情况。
This paper states a detecting method for defect of three-phase current motor and it also introduces the experimental analysis result and practice utilization condition of this detecting method.
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.
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.
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.
当供电电源一相断开以及定子绕组一相断开时，均将导致三相感应电动机的缺相运行。
When Power supply transformer and a continuous phase stator windings call for a phase, it may cause the three-phase induction motors running.
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.
能耗制动是在异步电动机切离三相电源后，在定子回路通入直流电流，实现能耗制动。
The dynamic braking means that after three-phase voltage is switched off asynchronous dynamo the dc current flows into the stator circuit to realize dynamo braking.
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.
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.
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.
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