利用光纤差动保护实现改善风井区110kV线路保护性能的研究

Research on the Implement and Improvement of the Performance of Protection for 110 kV Line in Ventilating Shaft Area

张集煤矿风井区110 kV变电所作为矿井三区电网的枢纽站,主要为北区提供主电源和备用电源,为中央区提供备用电源。为确保安全供电,提出利用光纤差动保护来改善线路保护,不仅提高风井区三条110 kV线路的保护水平,而且也提高三区电网的安全性、稳定性。

The 110 kV substation in the ventilating shaft area in Zhangji Coal Mine,as the main substation of the electric network of No.3 district,provides the main power supply and the emergency power supply for the northern area,and the emergency power supply for the central mining area.Regarding this,proposes that improves the line protection by using the optical fiber differential motion protection,it not only may raise the 110 kV line’s protection level of three lines of No.3 district,but also may enhance the electrical network’s security and stability of No.3 district.