摘要
为研究不同受潮方向对胶浸纸(resin impregnate paper,RIP)套管芯体绝缘性能的影响,利用真型RIP套管芯体,制备4类不同方向绝缘漆防护的试验样块,测量不同湿度下各样块的介质损耗因数(tanδ)、电容量、绝缘电阻和频域介电谱。结果表明,tanδ、电容量和绝缘电阻在轻度受潮时变化量小且变化缓慢,而重度受潮时呈断崖式变化,同时tanδ和绝缘电阻对水分的敏感度高于电容量。因铝箔对水分的阻碍作用,RIP套管芯体的轴向受潮对绝缘性能的影响大于径向受潮,且受潮程度越大,差异越显著。该研究结果可为RIP套管受潮评估提供参考。
In order to study the effects of different moisture intrusion directions on the insulation performance of resin impregnated paper(RIP)bushing core,four types of test blocks with different directions of insulating varnish protection are prepared by utilizing real RIP bushing core,and the parameters such as dielectric loss factor(tanδ),capacitance,insulation resistance and frequency domain dielectric spectroscopy(FDS)of the blocks are measured at different humidity levels.The results show that tanδ,capacitance and insulation resistance have small and slow changes in light moisture,while they show cliff-like changes in heavy moisture,and tanδand insulation resistance are more sensitive to moisture than capacitance.Due to the hindering effect of aluminum foil on moisture,the axial moisture of the RIP bushing core has a greater effect on the insulating performance than the radial moisture,and the difference becomes more significant with the increase of the degree of moisture.The results can provide a reference for the evaluation of moisture intrusion of RIP bushing.
作者
张诚
蔡广燚
尤少华
许佐明
刘泰蔚
ZHANG Cheng;CAI Guangyi;YOU Shaohua;XU Zuoming;LIU Taiwei(State Grid Corporation UHV Construction Company,Beijing 100052,China;State Key Laboratory of Power Grid Environmental Protection,China Electric Power Research Institute,Wuhan 430074,China)
出处
《湖南电力》
2025年第1期106-111,共6页
Hunan Electric Power
基金
国网特高压公司科技项目(GYW11202401660)。
关键词
受潮方向
胶浸纸套管芯体
绝缘性能
频域介电谱
moisture intrusion directions
RIP bushing core
insulation performance
frequency domain dielectric spectroscopy(FDS)
