一种采用变频技术来补偿开断电流衰减的试验回路  

Test Circuit Using a Kind of Variable Frequency Technology to Compensate for Breaking Current Attenuation

作　　者：吴盛刚[1] 李向阳[1] 成俊奇[1] 李玉春[1] 

机构地区：[1]中国电力科学研究院开关所,北京100192

出　　处：《电工电气》2009年第11期29-31,42,共4页Electrotechnics Electric

摘　　要：介绍一种不用补偿回路的电流衰减补偿方法,其工作原理是采用变频技术来提高熄弧半波电流的频率和增大电流值,以补偿开断电流的衰减,使其满足标准对最后燃弧半波电流幅值和半波持续时间的要求。对两种补偿方法的优缺点,从经济性、安全性、适用性以及等价性几个方面进行了比较和评估,得出了采用变频补偿方法具有显著优越性的结论,实践表明,该试验技术有较大实用价值和推广价值。A kind of current attenuation compensation method without compensation circuits was presented and its working principle adopted variable frequency technology to increase frequency of a loop with clearance and the current value to compensate for the at- tenuation of breaking current to comply with the requirements for current amplitude and duration of a loop with clearance in synthetic testing standard. The advantages and disadvantages of two type of compensation methods were compared and assessed from the aspects of economy, security, applicability and equivalence. It has been proven that using the frequency compensation method has a significant advantage. The practice shows that the test technology has a great practical value and it is worthy to spread.

关 键 词：振荡回路试验 电流衰减 变频补偿 评判准则 

分 类 号：TM835[电气工程—高电压与绝缘技术]