高压电器2012，Vol.48Issue(2)：34-41,8.
油纸绝缘气隙模型局部放电特性试验研究
Experimental Investigation of the Partial Discharge Feature with the Air Gap Model in Oil-paper Insulation
摘要
Abstract
In order to investigate the partial discharge (PD) characteristic of the oil-paper insulation of the converter transformer in HVDC power transmission systems, the typical defect model-air gap discharge model in oil-paper insulation is designed. For the same sample, PDs are measured and analyzed with electrical pulse current method in accordance to IEC 60270-2000 recommendation under AC, DC and the damped alternating current (DAC) voltages, respectively. Some characteristic parameters of the PD in air gap of oil-paper insulation including the partial discharge inception voltage (PDIV), the partial discharge extinction voltage (PDEV), PD pulse level, pulse current shape, and repetition rate of the partial discharge are investigated comparatively . All these will be helpful for the PD monitoring on-line and insulation evaluation of the converter transformer.关键词
换流变压器/油纸绝缘/局部放电/绝缘评估/在线监测/衰减振荡电压Key words
converter transformer/ partial discharge /oil-paper insulation /insulation evaluation/ monitoring online/ DAC voltage分类
信息技术与安全科学引用本文复制引用
徐春社,孙振权,赵学风,李彦明..油纸绝缘气隙模型局部放电特性试验研究[J].高压电器,2012,48(2):34-41,8.基金项目
国家自然科学基金(50977075) （50977075）
国家重点基础研究发展计划(2011CB209404). （2011CB209404）
