CAJ | 학술논문

基于电场数值分析的理论基础，以 COMSOL 软件为求解工具，建立工频电压下的35 kV 电缆模型。针对电缆中最常见且危害性较高的外半导电屏蔽内陷、外半导电屏蔽与主绝缘破损、电屏蔽主绝缘中导电性杂质球这三种缺陷，进行电场仿真分析，得到了最大电场强度与电缆绝缘材料损坏程度的关系。并且对这三种电缆缺陷在工频电压下进行了局部放电测试，试验结果表明建立的电场模型能够对电缆缺陷进行仿真分析。
기우전장수치분석적이론기출，이 COMSOL 연건위구해공구，건립공빈전압하적35 kV 전람모형。침대전람중최상견차위해성교고적외반도전병폐내함、외반도전병폐여주절연파손、전병폐주절연중도전성잡질구저삼충결함，진행전장방진분석，득도료최대전장강도여전람절연재료손배정도적관계。병차대저삼충전람결함재공빈전압하진행료국부방전측시，시험결과표명건립적전장모형능구대전람결함진행방진분석。
Based on the theory of electric field numerical analysis, with COMSOL software for solving tools, set up under the power frequency voltage 35 kV cable model. Aiming at the most common and harmful higher in cable outer semiconductive shield invagina-tion, outer semiconductive screen with the main insulation damaged, electric shielding conductive impurity ball the three defects in the main insulation, electric field simulation analysis, the maximum electric field intensity and the relationship between the damage degree of cable insulation materials. And defects of these three kinds of cable under power frequency voltage for the partial discharge test, the test results show that the model of the electric field can carry on the simulation analysis to the cable defect.