广东电力2016，Vol.29Issue(2)：9-13,20,6.DOI:10.3969/j.issn.1007-290X.2016.02.002
油纸绝缘系统针板缺陷下局部放电发展过程研究
Research on Development Process of Partial Discharge Under Defect of Needle-plate of Oil Paper Insulation System
摘要
Abstract
Partial discharge (PD)experiment on needle-plate defect of typical oil paper insulation system with alternative cur-rent (AC)voltage is conducted,analysis on PRPD spectrum diagram and typical pulse waveform of the defect is carried on, and according to distribution trend of PD pulse in PRPD spectrum diagram,development process of PD is divided into three stages. Experimental results indicate that PD pulse with oil paper insulation AC voltage could be divided into two types, which may respectively represent PD in structure of oil paper insulation and PD in bubble. With rise of voltage,negative po-larity discharge along the surface of insulation paper occurs which may cause large damage to the insulation paper,bring a-bout performance degradation of insulation paper and finally result in dielectric breakdown. Research on development process of PD of structure of oil paper insulation with rise of voltage level has important meanings for realizing transformer online monitoring system.关键词
油纸绝缘/针板缺陷/局部放电/PRPD谱图/典型脉冲波形Key words
oil paper insulation/needle-plate defect/partial discharge/PRPD spectrum diagram/typical pulse waveform分类
信息技术与安全科学引用本文复制引用
欧小波,周丹,崔彦捷..油纸绝缘系统针板缺陷下局部放电发展过程研究[J].广东电力,2016,29(2):9-13,20,6.基金项目
广东电网有限责任公司科技项目(K-GD2014-0541) （K-GD2014-0541）
