직류/교류용 절연구분장치의 현장시험을 통한 마모 특성 분석

초록

This paper proposes comparative data of insulator which is used for domestic operating line with direct connection of DC section and AC section, from field test. In order to analyze foreign FRP insulator, foreign PTFE(glass fiber 25%) insulator and PTFE(glass fiber 15%) currently adjusted in domestic, we compared existing frictional wear test result and back-and-forth abrasion test result from laboratory to field test result of domestic product, We installed insulator of operation line in Changdong depot of Seoul Metro, After 6600 times of pantograph friction during 66 days, we measured abrasion loss of the product. According to the measurement result, abrasion loss after two millions times of friction was only 0.3mm, and according to field test result from actual railroad operating field with 6,600 times of friction during 66 days, there was merely no abrasion loss from it. We found out outstanding wear-resistant property of the domestic product