【摘要】 利用静态电场的三维有限元法对35kV复合绝缘子的电场分布进行了分析和计算,结果表明,当高压端落入短路金属棒时,其局部的最大电场强度会显著增大;而当低端落入相应的金属棒时,这一效应较弱,计算结果还显示出,干燥绝缘子的伞裙局部或全部脱落后对整个场域的电场强度影响很小,此时绝缘子的电场仍可按2D轴对称分布来进行分析研究。更多还原

【Abstract】 The electrical distribution of 35kV composite insulator was computed with electrostatic finite element method(FEM).It was illustrated that,while short-circuit metallic fall into the high voltage domain,the maximum electric strength was increased sharply.However,the metallic fall into the low voltage domain,the effect was weaker.At the same time,it is presented that the partial and whole shed boosters breakage of dry insulator has a weaker effects to electrical distribution,then the field distribution can be considered as 2D symmetrical one.更多还原