高功率因数直线感应电机的研究

XYSB3500型高功率因数直线感应电动机对提高功率因数和额定电磁推力有明显的效果，额定电流也有较大的降低，节电效果相当显著。     

浅谈电动机调压节电效益兼析经济效益

国家标准GB－12497（三相异步电动机经济运行）6．6．1规定：变负载运行的电动机，当空载运行时间较长，且轻载运行的负载率小于30％，宜采用调压节电。我们在执行国家规定时，必须从企业的实际出发，不仅考虑节电效益，还要考虑经济效益，所以企业在推广节电产品前，必须兼顾节电效益和经济效益的综合考察和科学论证。1986年，我厂试用过常州产的XSX系列电动机节电器（以下简称节电器）未能坚持。1992年10月试装了二台福建产的JN10－11三相异步电动机节电器，正常运行至今。通过实测和计算有三个问题需要讨论。一、必须全面、准确了解、…     

浅谈三相交流异步电动机几项节电方法

本文就三相交流异步电动机节电运行问题,从选择、变频调速和提高检修质量三方面浅谈实践经验。     

浅谈三相交流异步电动机的节电措施

本文从最佳负载率的控制、更换老旧电动机、调节电动机端电压、控制电动机转速等几个方面浅谈三相交流异步电动机的节电途径.     

浅谈微型电动机发生故障的查找与原因分析

本文浅析微型电动机出现常见故障的原因、查找方法,以及如何排除。     

三相异步电动机软启动技术

在一般启动中，三相异步电动机产生强大电流，从而降低了供电电压质量，造成对负载设备冲击。在发达国家多年来成功地采用了软启动技术，本文介绍了它的工作原理及我国的应用情况。     

推进电机分体式安装技术探讨

介绍了船舶推进电机分体进舱安装的工艺过程,以及每个工艺过程,如基座位置的确定,轴承与转子的安装,定转子气隙的调整等,需重点注意的一些问题,为推进电机分体进舱安装提供技术支持.     

电动机运行中常见故障及对策浅析

分析了电动机烧毁原因,提出,针对电动机运行中的高缺陷率采取的对策。     

浅议三相异步电动机节能软启动技术

论述了关于三相异步电动机节能控制、节能软启动的基本原理、几种常用软启动方式及其优缺点,并讨论了软启动技术的选择依据,为生产生活选用节能软启动器提供了依据。     

用直线电机作刀具进给驱动车削变椭圆形活塞的研究

本文介绍了用直线电机作刀具进给驱动的车削系统，应用微机控制技术控制直线电机实现高速，高精度的往复进给运动，以完成中凸变椭圆活塞的车削加工。加工不同形状尺寸的活塞时，仅需要调整车削控制程序。用该系统车削变椭圆形活塞。能有效地提高加工精度和效率，缩短生产周期，有利于获取良好的经济效益。     

A Study on the Structure of Linear Synchronous Motor for 600 km/h Very High Speed Train

Recently, an interest in a hybrid system combining only the merits of the conventional wheel-rail system and Maglev propulsion system is growing as an alternative to high-speed maglev train. This hybrid-type system is based on wheel-rail method, but it enables to overcome the speed limitation by adhesion because it is operated through a non-contact method using a linear motor as a propulsion system and reduce the overall construction costs by its compatibility with the conventional railway systems. Therefore, a comparative analysis on electromagnetic characteristics according to the structural combinations on the stator-mover of LSM （linear synchronous motor） for VHST （very high speed train） maintaining the conventional wheel-rail method is conducted, and the structure of coreless superconducting LSM suitable for 600 km/h VHST is finally proposed in this paper.     

Influence of Induction Motor Design Data on Effects of Cage Asymmetry

The purpose of this paper is to analyze influence of design data on a component （1 - 2s）~ in stator currents of induction motors, mainly used for cage fault diagnosis. This paper shows that such an approach does not always lead to a correct outcome. The considerations are based on a ＂classical＂ model of induction motors extended to cage asymmetry by introducing cage asymmetry factors ko~ and ka. It has been found that in order to estimate the level of the component （1 - 2s）7~, it is enough to know the pole-pair number ＂p＂ and the number of rotor slots ＂N＂. The main objective of the paper is to provide engineers with simple qualitative prediction of effects due to cage faults for various motors when information on design data is very limited.     

关于单相异步电机定子绕组接线与转向问题探讨

介绍了单相异步电机定子接线与转向的问题进行了探讨,对转子的转向和转动的方向与合成磁场进行了分析,阐述了两绕组流过的情况可做其合成磁场为逆时针方向。     

涡轮式空气起动马达的研制

本次研制开发的涡轮空气起动马达，是以国外先进的成熟产品为追赶方向，通过精心设计和采用符合我国国情的加工工艺研制而成的。其最大设计功率达60kW，可单台起动国内目前生产的大多数中高速大功率柴油机，为国内中高速较大功率柴油机又提供了一种可供选择的起动方式。     

Influence of Design Parameters on Linear Induction Motor End Effect

In this paper, a factor referred to as k_f for linear induction motor end effect analysis is presented. The mathematical model takes into account the longitudinal entry end effect. The entry end effect produces considerable distortion in magnetic field distribution. It is shown how this influence is derived from the machine-developed force that is calculated through the application of the 1-D theory. The k_f factor establishes the relationship between the longitudinal end effect and machine parameters, mainly the number of magnetic poles, secondary resistivity, and frequency.