摘要
介绍了兆欧表测量变压器绝缘电阻的原理 ,并采用高电位屏蔽法 ,利用单片机和 V/F转换测量变压器的绝缘电阻 。
This paper briefly introduces the principle of megohmmeter for measuring the insulating resistance of transformer. Whether the transformer is connected to the earth or not will influence the measuring result of megohmmeter. So we adopt high potential shield, V/F conversion and single chip microcomputer to measure the transformer’s insulating resistance. Its measuring result is independent with the earthing.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2000年第5期67-67,75,共2页
High Voltage Engineering
关键词
兆欧表
绝缘电阻
测量装置
变压器
megohmmeter insulating resistance high potential shield
