CAJ | 학술논문

借助扫描电镜观察局部放电和击穿后样品内部结构的变化并分析试验的结果后发现：不同的绝缘材料发生放电后，绝缘材料破坏的范围和进一步发展的趋势是不同的；不同的绝缘材料所承受的放电强度不同，且有一定强度的短时放电，即使放电强度已较大，对绝缘材料的影响不大，因此局部放电引起绝缘材料的老化通常是一个长期的累积过程。
차조소묘전경관찰국부방전화격천후양품내부결구적변화병분석시험적결과후발현：불동적절연재료발생방전후，절연재료파배적범위화진일보발전적추세시불동적；불동적절연재료소승수적방전강도불동，차유일정강도적단시방전，즉사방전강도이교대，대절연재료적영향불대，인차국부방전인기절연재료적노화통상시일개장기적루적과정。
In this paper, the effect of PD on the inner structure of samples is shown by scanning electron microscope and the experimental results are analyzed and interpreted. It is found that after discharge, different material has different damaging areas and different developing trend of aging. As different material can bear different intensity of discharge and short time discharge in a certain extent of intensity, even it is rather strong,it has little effect on the materials. So the aging effect of PD is a cumulative process over a long period mostly.