高压交直流电容式套管内部电场的分析比较及改进

COMPARISON, ANALYSIS AND IMPROVEMENT OF THE ELECTRIC FIELD DISTRIBUTION IN HIGH VOLTAGE AC AND DC CAPACmVE BUSHINGS

高压交、直流电容式套管内部电场分布有较大的不同。通过采用有限元法对两者进行精确分析,得到了套管内部场强的准确分布,这可为套管的设计及改进提供理论参考。

Based on Ansoft Maxwell Finite Element Soft package, precise analysis of the electric field distributions in high voltage AC and DC capacitive bushings is demonstrated. Consequently, the discrepancy of electric field distributions between AC and DC bushings is examined. To reduce high electric-field intensity under DC conditions, a new scheme is proposed.