摘要
研制了一种密封间隙,可解决户外110kV变压器中性点保护装置存在放电分散性大、易受大气条件影响等固有缺陷.根据间隙技术要求,进行了触头试验,并选取少油断路器触头作为间隙电极,试验得到88mm的合理间隙值.放电试验结果表明:密封间隙的参数符合间隙技术条件,能与避雷器参数满足配合原则.该装置能够进行远方电动操作和就地电动或手动操作,现场试运行效果良好.
In order to solve the problems of dispersion of discharge, easily affected by atmospheric conditions for outdoor 110 kV transformer neutral point, a seal gap is developed. According to technical conditions, contact were selected; the proposed gap value is 88 mm. Discharge tests are carried out with seal gap. The results show that the technical parameters of seal gap meet the technical conditions and match with the arrester. The device can be both locally and remotely controlled; and the test operation showed the effect was obvious.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2012年第2期216-219,共4页
Engineering Journal of Wuhan University
关键词
变压器中性点
工频放电电压
雷电放电电压
密封间隙
参数配合
transformer neutral
power-frequency flashover voltage
lightning impulse flashover voltage
seal gap~ parameters collaboration
