Based on principium of medium loss measurement,principium of series resonance is analyzed,and device layout of current mutual inductance used in high voltage medium loss measure is presented.

• 在介损测量基本原理的基础上,分析了串联谐振的基本原理,提出了电流互感器进行高电压介损测量时的设备配置,结合典型事例给出了测试结果。