高压电动机轴电流引起的轴承烧损分析及防范措施

摘要

通过对大唐淮南洛河电厂三期4台凝泵电机轴承因轴电流频繁损坏的案例分析，着重了解采用滚动轴承的大中型高压电动机轴电流产生的原因及其对电动机轴承造成的损害，并结合实际情况和经验介绍了轴电流烧伤轴承的特征及防范措施。经改进后实际使用寿命大大提高，尤其对高压电动机轴电流的防范效果极佳，同时也减少了噪声污染，对安全生产具有积极作用，提高了经济效益。%According to the analysis of the frequent damages of four condensate pump motor bearing caused by shaft current in Datang Huainan Luohe Power Plant , the causes of the shaft current of the large and medium-sized high voltage motors which adopt rolling bearing and its damage to the motor bearing are understood , combined with the actual situation and experience , the characteristics of bearing damaged by the shaft current and the preventive measures are introduced .After improvement , the actual service life is greatly increased , especially the prevention effect of shaft current of high voltage motor is excellent , and also the noise pollution is reduced , with a positive effect on the safety production , to improve economic benefit .