摘要
由于开关隔离断口工频耐压试验的电压值高于开关对地及相间的电压值,故容易造成端子对地击穿,从而破坏试品并使试验失败。本文通过研究国家标准的相关要求,设计开发了一种采用带有中间抽头变压器实现中压开关隔离断口工频耐压试验的装置。
It is easy to cause terminal to ground breakdown,destroy the test sample and make the test failure,because the voltage value of the power frequency withstand voltage test of switch isolating distance is higher than the voltage value of the switch to ground and phase-to-phase.Based on the study of the national standards,this paper develops a power frequency withstand voltage test device with intermediate tap transformer to realize the isolating distance of medium voltage switch.
作者
康志林
李泽芃
KANG Zhilin;LI Zepeng(Gansu Electric Apparatus Science Research Institute,Tianshui 741018,Gansu,China)
出处
《电气传动自动化》
2023年第5期74-76,共3页
Electric Drive Automation
关键词
隔离断口
工频耐压
试验装置
绝缘性能
Isolating distance
Power frequency withstand voltage
Test device
Dielectric property
