The Applications of Current Comparators in the Measurements on High Voltage InsulationYi-jun Fei, Xu Dong, Jie Chen, Huan Zheng, Jing-ying Cao and Zhong-hua LiMATEC Web of Conferences, 40 (2016) 07014DOI: https://doi.org/10.1051/matecconf/20164007014