This article lists the calculation methods of such three types of protection setting of the unbalance voltage as the capacitor with fuse for the external protection

the capacitor with assembled internal fuse and the capacitor with structure internal fuse

and stresses that the three calculations can not be confused;The unbalance voltage protection setting values of above three types are different each other.The calculation result of the capacitor of outer protecting fuse is applied in the capacitor of inter protecting fuse can cause accidental expansion if accident taking place.This article seeks the correct calculation method and amends the protection setting of the capacitor of outer protecting fuse

so to ensure safe and stable operation of complete capacitor banks.