电动机

The clearance error of intermediate driving chain in the conventional main driving system and feed system influenced directly the working accuracy of NC machine tools.

传统的&电动机+皮带轮+速比齿轮&的主传动系统和&电动机+齿轮减速器&的进给系统，其中间传动链形成的间隙误差直接影响到机床的加工精度。

Cage shaped rotor includes following parts: columnar rotor core made from soft magnetic material, multiple bar conductors made from copper inserted into rotor core along up and down direction, short circuit rings made from copper installed on upper and lower ends of rotor core in order to realize electrical connection among each bar conductor. Preparation method includes steps: in step for preparing short circuit ring assemblies, bar conductors are installed between short circuit rings in upper part and lower part to keep electrical connection between short circuit rings in upper part and lower part; in step for forming columnar rotor core, pressurization molding soft magnetic material is carried out when short circuit rings module is in die so as to form rotor core, where bar conductors are inside and short circuit rings are in upper and lower ends.

一种电动机的笼子状的转子及其制造方法，电动机的笼子状的转子包括转子铁芯，用软质磁性材料制成，呈圆筒状；多个导体棒沿上下方向插在转子铁芯的外圈，用铜制成；短路环为能够与各导体棒实现电连接，分别安装在转子铁芯的上、下端，并用铜制成；其制造方法，即制作短路环组件的阶段，在这个阶段中在用铜制成的上部短路环与下部短路环之间安装铜质的导体棒，从而形成短路环组件，这些导体棒相距一定间隔，与上、下短路环保持电连接；形成圆筒形转子铁芯的阶段，在这个阶段中把短路环组件放在模具内，并用软质磁性材料进行加压成型加工，从而形成导体棒位于其内部、短路环位于其上、下两端的转子铁芯。

After switching on for the first time by controlling on site, when startup current declined,switch off breaker to see if the rotation direction is right,or change phase sequence of motor power cable.

3.12.2 采用现场控制第一次合闸后，待起动电流下降，即行断开，看电动机旋转方向是否正确。如果不正确，可更换电动机动力电缆的相序。

This real-time system includes measurement and control of analogs, digitals, temperature, DC motor and stepping motor.

这个实时系统对多个开关量、模拟量、温度信号、直流电动机和步进电动机等进行实时的数据采集和控制。

Finally, this paper studies thoroughly a novel approach to detect rotor bar breaking fault, which is based on the perfect combination of the Hilbert Transform and digital f

在上述研究的基础上，针对山西娘子关发电厂7#给水泵（YK2300-2/990笼型异步电动机），研制大型异步电动机状态监测与故障诊断系统，目前已完成安装调试，试运行阶段效果良好。

Workers can adjust single-speed of cooling machine to a reasonable working under the conditions of the fire kiln, the thick layers and the secondary air temperature .It creates a favorable operating condition .To strengthen the size of the sealed gear and maintain the cleanliness of lubricants , is necessary.

在本课题中交流电动机改为直流调速电动机，看火工可以根据窑况、料层的厚薄以及二次风的温度进行手动调节单筒冷却机的转速以求获得合理的工况，为看火操作创造了有利条件。

Especially in the field of elevator, numerical control machine tool etc., the traditional decelerater-electrical motor drive mode are now gradually replaced by the integrated drive system that is built up power electronic-electrical motor-mechanical load with center of micro-electronic info processor. The main study objects of this item are the gearless elevater traction drive system.

尤其在电梯和数控机床等低速大扭矩驱动领域中，以电子信息处理技术为核心与电力电子电源-电动机-机械负载组成融为一体的闭环无级变速系统，正在逐步取代传统的减速机-电动机驱动模式。

The interharmonic sources in power system are analyzed,such as converter equipment,fluctuating load,ferro-resonance,synchronous regulator cascade and induction motor. Its harms are expounded,including waveform distortion,light flicker and influences on measuring instrument,motor and power factor.

分析了电力系统中各种间谐波源，包括变频装置、波动负荷、铁磁谐振、同步串级调速装置及感应电动机，阐述了间谐波的各种危害，如波形畸变、灯光闪烁及对测量仪表、电动机、功率因数的影响。

Referred to as MCC. Will exchange the set of low-voltage motor control and protection equipment, according to certain specifications series of generic modules assembled into components, each component of a circuit, and number of modules, components can be removed from the patch according to the formal structure to form a cabinet, the multi-loop motor control system, centralized control of multi-motor electronic control device.

简称MCC。将交流低压电动机的整套控制和保护设备按一定的规格系列装配成通用单元组件，每个组件一个回路，并将多个单元组件按可抽出的接插形式结构组成一个柜体，即多回路电动机控制系统，实现多电机集中控制的电控设备。

States the startup styles and their advantages and disadvantages of seveol three-phase ac asynchronous motor,presents the application of the new type electric flexible trigging style in the electric motor of deep well pump and its operating results in our plant,and provides the industial and mineral enterprises with application experience in the application of motor flexible trigging style.

论述了几种三相交流异步电动机的起动方式及其优缺点，介绍了新型的电子软启动方式在我厂深井泵电动机上的应用及取得的运行效果，为电动机软启动方式在工矿企业中的应用提供了应用经验。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。