摘要
文中由实验系统地论述了电力变压器内绝缘局放的电、声特性。如声发射强度,声频谱,声速与温度、杂质的关系,等值声速,层介质声衰减及透射等。研究表明,电力变压器内绝缘局放故障,采用超声波定位法是行之有效的。本文论述的结论可供研制定位系统参考。
Experimental investigation about ultrasonic physical characteristic of partial discharges has been studied.Example, ultrasonic intensity, of partial discharge, ultra sonic spectral, temperature effect on sonic velocity in oil, equivalent sonic velocity characteristic, ultrasonic attennation in oil-layer-oil, ultrasonic transmission of partial discharge and so on. The result of experimental investigation show that, ultrasonic location system on power trasformer will be an excellent effective method to find location of insulating failure.
出处
《电工技术学报》
EI
CSCD
北大核心
1992年第1期18-23,共6页
Transactions of China Electrotechnical Society
基金
国家"七.五"攻关研究课题总结之一
