摘要
本文中研究了交直流复合电压下变压器油中针—板电极模型的击穿特性,结果表明直流击穿电压随预加交流电压的增加呈线性下降,反之,交流击穿电压随预加直流电压的增加也呈线性下降。并且,不同预加电压类型下的击穿场强明显不同。
In this paper, the breakdown characteristics of needle-plate electrode model in transformer oil under AC and DC composite voltage are researched. The results indicate that the AC breakdown voltage value decreases linearly as the DC pre-voltage value increases and vice versa. In addition, different kinds of pre-applied voltages affect the test results remarkably, that is, the breakdown voltage value under AC pre-voltage is higher than that under DC pre-voltage.
出处
《变压器》
北大核心
2013年第3期41-45,共5页
Transformer
关键词
复合电场
预加电压
针-板电极
换流变压器
Composite electric field
Pre-applied voltage
Needle-plate electrode
Converter Transformer
