极性反转过程中油纸复合绝缘油中暂态电场特性
Converter transformer is one of the key devices in HVDC power transmission system. When polarity reversal takes place, space charges would not be able to quickly resolve but rather create its own electric field that superimposes on the newly established initial capacitive electric field after polarity reversal. As a result, a transient high electric field is triggered around the oil clearance,leading to partial discharge and even insulation breakdown that severely affect the safe and reliable operation of HVDC converter transformer. The present research used Kerr electro-optic method to have measured the electric field dynamics in oil at double polarity reversals and captured the interface charge accumulation characteristics for the oil-pressboard composite insulation.
油纸复合绝缘油 暂态电场特性 测量方法 极性反转过程
Bo Qi Cheng Rong Li Hao Wu Xiaolin Zhao
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing Key Laboratory of High Voltage & EMC, North China Electric Power University Beijing, 102206, China
国内会议
西安
中文
191-192
2013-10-17（万方平台首次上网日期，不代表论文的发表时间）