提高污秽条件下耐张绝缘子绝缘强度

Improving Tension Insulators' Insulation Strength under Contaminated Conditions

以某电站耐张绝缘子串爬电现象为背景,研究了污秽条件下影响绝缘子绝缘强度的因素。通过重新划分污区、采用新材料及新伞形,提高了爬电距离及污秽绝缘子耐受电压,提高了耐张绝缘子的绝缘强度,消除了爬电现象。

Based on the phenomenon of creepage of tension insulator strings in a power station, the factors affecting the insulation strength of theinsulators under contaminated conditions were studied. By re-dividing the contaminated areas, using new shed-type insulators with new materials, thecreepage distance and the withstand voltage of the insulators were improved, the insulation strength of the tension insulators was thus improved, andthe creepage phenomenon was eliminated.