Abstract：In this paper, current phase comparison protection will be introduced, which is one kind of differential current protection. Current phase comparison protection will compare the current sign of each phase from two terminals to detect fault. It is sensitive and reliable in case of light load, CT saturation or power system swing.
马燕,唐仁权,朱海清,曹祯,钟家镇. 基于突变量的光纤比相差动保护原理及实现[J]. 电气技术, 2014, 15(08): 56-59.
Ma Yan, Tang Renquan, Zhu Haiqing, Cao Zhen, Zhong Jiazhen. The Principle and Implementation of Current Phase Comparison Protection. Electrical Engineering, 2014, 15(08): 56-59.
2014, Vol. 15 
