变压器绕组变形测试抗干扰研究  

Anti-jamming Study of Transformer Winding Deformation

作　　者：李书雄 

机构地区：[1]四川省电力公司甘孜公司,四川甘孜626000

出　　处：《重庆科技学院学报（自然科学版）》2013年第6期116-118,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：中央高校基本科研业务费自主课题(CDJZR10150016);四川省电力公司科技项目(2013川电科技自32)

摘　　要：针对电力变压器绕组变形测试仪信号易受干扰的问题,提出基于有源采样的抗干扰研究。在测试仪信号注入端及响应端进行分别取样后,信号经过运算放大器进行信号放大,再通过气体避雷器和瞬态电压抑制二极管进行信号保护,最后将处理后的信号用于计算传递函数,根据传递函数判断变压器绕组是否发生变形。Focus on the problem of current power transformer winding deformation tester＇s signals are susceptible to be interfered, this paper presents an anti - interference research based on active sampling. After the tester~ signal injection side and the response side are sampled, singles are amplified through operational amplifier, and then through a gas arrester and transient voltage suppression diode to take signal protection. Finally it uses the processed signal to calculate the transfer function, based on the transfer function to judge whether the transformer winding is deformed, so to ensure the accuracy and repeatability of test.

关 键 词：变压器绕组 变形测试 抗干扰 有源采样 

分 类 号：TM418[电气工程—电器]