这台缝纫机是靠电动机启动的。
适用于交流电动机启动电路中。
提出了有关异步电动机启动和运行的综合控制方案。
The comprehensive control scheme for the starting and running of asynchronous motor is presented.
当电动机启动时，其电压不允许低于额定值的85%。
When the motor is started, its voltage is not permitted to go below 85 percent of the rated value.
本文提出一种计算较大电动机启动时对公共母线电压影响的方法。
This paper presents a calculating method for checking the voltage impact on common bus during large motor starting.
该产品体积小，容量大，稳定可靠。适用于交流电动机启动电路中。
The product has small volume? Large capacity and stable reliability. It is used to the startup circuit of ac electromotor.
一些常见的非线性负载有荧光灯、可控硅电动机启动器以及UPS系统。
Some common nonlinear loads are fluorescent lighting, SCR motor starters and UPS systems.
输配电线路故障、变压器投运、感应电动机启动是引起电压凹陷的主要原因。
Voltage sags due to line faults, transformer energizing and induction motor starting are main interference sources.
厂用电系统中一般带有集中电动机负荷，异步电动机启动会引起母线电压严重的波动。
The electric auxiliary system sometimes has condenser motor loads, and the starting of inductor motors can cause bus voltage fluctuation problem.
厂用电系统中一般带有集中电动机负荷，异步电动机启动会引起母线电压严重的波动。
The electric auxiliary system usually consists of condenser motor loads, and the starting of inductor motors can cause the problem of bus voltage fluctuations.
而利用电动机启动电流检验差动保护接线的新方法，简便可靠，容易与现场安装施工进度相协调。
The new approach, which checks differential protection connection using electromotor starting current, is simple and reliable, and easy to be coordinated with installation schedule.
该系统解决了电动机启动中电流过大的问题，并且实现电动机的过压、过流、欠压等各种故障的数字显示。
The device can solve the problem of over current in electromotor start up process, and has the digital displaying of fault such as under voltage, over voltage and over current, etc.
通过对启动电动机启动功率的分析，提出以柴油机的制动功率必须大于负荷的峰值功率作为条件来校验其容量。
Through analysis on the start power of the starting motor he also puts forward the capacity of the diesel should be checked in conditions t…
采用线性关系表示异步电动机启动阶段转速与时间的关系，计算出立式行星磨的启动时间范围为7.94~10.32s。
The start-up time of the mill is calculated to be 7.94~ 10.32 s by a linear formulation for the rotating velocity-time relationship to be 7.94~ 10.32 s.
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.
许多电动机在启动时的扭矩转速特性几乎不变。
Many motors do have a nearly constant torque-speed characteristic during starting.
许多电动机在启动时的扭矩转速特性几乎不变。
Many motors are characterized by its constant torque-speed characteristic during starting.
电动机自动启动已准备好。
首先应开动油泵与冷却系统，经过35后，待油路畅通再启动破碎机电动机。
First should start pump and cooling system, after 35, to expedite restarting crusher motor oil.
对异步电机的启动过程进行了分析，对普通异步电动机用于驱动重载启动设备而造成频繁损坏的机理进行了合理的解释。
The starting process of asynchronous motor is analyzed and the mechanism of normal asynchronous motors frequently damaged by driving heavy load starting devices is explained reasonably.
针对电动机—发电机系统在低网压下的启动特性进行了理论分析和模拟计算。
Academic analysis and simulation calculation about starting characteristic of motor generator system in low voltage were carried through.
增安型电动机在运行时，尤其在启动过程中存在产生放电或火花的可能性。
It would cause discharge or spark for increased safety motor in operation, especially during starting up.
此方法可为电动机—发电机系统的启动控制提供可靠依据。
The credible control basis for starting course of motor generator system could be gotten by the way.
介绍了用80c196 KB控制的异步电动机软启动系统，给出了系统建立的数学模型及软件设计方法。
The paper introduced the soft starting system of asynchronous motor controlled by 80c196kb, and gave the mathematic model of the system and designing method of the software.
永磁同步电动机从异步启动到牵入同步过程是一个非常复杂的机电瞬变过程。
Permanent magnet synchronous motor running from asynchronous start-up to pull-in synchronization is a very complex electromechanical transient process.
启动电动机，真空泵开始工作，吸附台面产生吸附效果。
The starting motor, the vacuum pump starts to work, adsorbs the floor to produce the adsorption results.
应限制启动次数，正确选用热保护，按电动机上标定的定额使用。
Should limit the number of activated, the correct choice of thermal protection, according to motor on the use of fixed calibration.
文中利用本法计算了同步电动机的异步启动转矩特性。
This method has been used to calculate the speed-torque characteristics of a synchronous motor during asynchronous starting.
同时分析了异步电动机的软启动和保护问题。
At the same time, this paper analyzes the soft start and protection problems of asynchronous motors.
同时分析了异步电动机的软启动和保护问题。
At the same time, this paper analyzes the soft start and protection problems of asynchronous motors.
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