摘要
Abstract
Based on the principle of ultrasonic method and TEV method , a study was done on the method to measure different types of partial discharge in swichgear cabinet .Results showed that surface discharge and corona discharge of cabinets were often followed by strong abnormal ultrasonic signal , so it's more efficient to measure partial discharge with ultrasonic method; as for inside discharge of cabinets , it's more efficient to measure partial discharge with TEV method . Besides, a study was done on the effects of different interference sources on these two methods and measures to attenuate the effect was put up.关键词
局部放电/超声波法/TEV 法/干扰源Key words
partial discharge/ultrasonic method/TEV method/interference source分类
信息技术与安全科学
