王巨丰,卢幸,韩力,毛成程.自能式多断口灭弧装置熄灭直流电弧试验研究[J].电测与仪表,2023,60(6):52-56. Wang Jufeng,Lu Xing,Han Li,Mao Chengcheng.Experimental study on DC arc extinction by self-energy multi-fracture arc extinguishing device[J].Electrical Measurement & Instrumentation,2023,60(6):52-56.
自能式多断口灭弧装置熄灭直流电弧试验研究
Experimental study on DC arc extinction by self-energy multi-fracture arc extinguishing device
DC distribution network is the development direction of power grid in the future, but the lightning protection situation of DC distribution network is still grim and not optimistic. This paper studies a kind of self-energy multi-fracture arc extinguishing device, describes the arc extinguishing principle of the device, analyzes the DC arc extinguishing mechanism of the self-energy multi-fracture arc extinguishing device, and demonstrates that the self-energy arc extinguishing method of "shock conduction-quick arc extinguishing-block reignition" can quickly extinguish the DC arc after flashover. In the DC arc extinction test, the arc extinguishing device can extinguish the DC arc with the amplitude of 0.8kA within 3ms, and block the reignition of the arc to achieve a good arc extinction effect. The feasibility of DC arc extinguishing by self energy multi-fracture arc extinguishing device is verified, which provides an important research basis for the actual operation of the device in the future.
