Two Consecutive Fusing Processes Of Drop-out Fuse

drop out fuse The four stages of the melting process are actually two continuous processes:

11 kv drop out fuse The heat accumulation process before the arc is generated and 11kv drop out fuse The arc process after the arc is generated by the melting. The characteristics of the pre-arc process are heat generation and melting, that is, the function of 11kv drop out fuse manufacturer in this process is to respond to the fault current. Obviously, the larger the fault current, the faster the temperature of the melt rises, and the shorter the pre-arc process. On the contrary, the smaller the fault current, the longer the pre-arc process.

33kv drop out fuse The main feature of the arc process is that the arc containing a large amount of metal vapor continues to spread and burn in the gap between the melt and the melt, and moves in the medium (such as air, quartz sand, insulating oil) under the action of electric power, and is continuously cooled by the medium. Because the arc gap increases, the arc is elongated and thinned, and the arc energy is absorbed, it cannot maintain combustion and extinguishes. The duration of this process determines the effective arc extinguishing ability of 33kv fuse. From a wish perspective, people hope that the arc can be extinguished in a short time.