What Are The Consequences Of Excessive Rated Breaking Capacity Of Drop-out Fuse?

If the rated breaking capacity of drop out fuse unit (generally refers to the upper limit of drop out type fuse capacity) is too large, it is very likely that the three-phase short-circuit capacity of the protected system will be less than the lower limit of the rated breaking capacity of dropout fuse of transformer, making it difficult to extinguish the arc when the expulsion drop out fuse fuse melts, and eventually causing accidents such as burning of the fuse drop out melting tube and explosion.