Application of Optical Fiber Differential Protection in High Voltage Power Network

At present, the optical fiber differential protection is widely used in high voltage power grid. However, due to the limitation of technology and equipment, there are still some reasons for the normal operation of optical fiber protection. In this paper, according to the actual operation of the optical fiber differential protection, the impact of optical fiber differential protection is analysed and classified after a long period of test summary. This has certain guiding significance to the reliable and stable operation of the optical fiber differential protection.