基于正交变换的6kV隔爆开关监视保护抗干扰方法的研究  

Study on the anti-interference methods in insulation Monitoring system of 6KV flameproof witchgear Based on orthogonal transformation

作　　者：刘忠富[1] 曹花荣[1] 宋建成[1] 

机构地区：[1]太原理工大学电气与动力工程学院,山西太原030024

出　　处：《煤矿机电》2003年第1期23-26,10,共5页Colliery Mechanical & Electrical Technology

摘　　要：本文分析了矿井杂散电流产生的原因与对监视保护的影响,提出了一种基于正交变换消除矿井杂散电流对监视保护影响的工作原理及抗干扰方法。Based on describing the principle of insulation monitoring protection in6KV flameproof switchgear,the cause of producing stray current in ground networks is analyzed in detail and the effect of stray current upon the insulation monitoring system is also discussed in this paper.According to the characteristic of stray current,a novel anti-interference method based on orthogonal transformation is proposed and a new insulation monitoring system is developed.The test results show that the insulation monitoring system developed by the method is stable and reliable and is of great applied value in mining industry.

关 键 词：高压开关 监视保护 杂散电流 正交变换 抗干扰 煤矿 矿井 

分 类 号：TD611.5[矿业工程—矿山机电]