摘要
基于10kV交联聚乙烯（XLPE）电缆试样，在阻尼振荡波（DAC）作用下，研究了20～300Hz频率内含针尖缺陷电缆绝缘的击穿特性随频率的变化规律。结果表明：在38．2～173．2Hz内，DAC击穿电压随频率的升高而增大，在173．2Hz处击穿电压达到峰值约为24kV；在173．2～300Hz内，DAC击穿电压随频率的升高而降低。
The variation of breakdown characteristic versus frequency of 10 kV XLPE cable with needle defect was studied in a frequency range of 38.2-173.2 Hz under damped AC（DAC） voltage. The results show that when the frequency ranges from 38.2 Hz to 173.2 Hz, the breakdown voltage under DAC in-creases with the increase of frequency, and the breakdown voltage attains maximum at about 173.2 Hz. When the frequency is in the range of 173.2-300 Hz, the breakdown voltage under DAC decreases with the increase of frequency.
出处
《绝缘材料》
CAS
北大核心
2013年第1期49-52,共4页
Insulating Materials
