The special fuse for high voltage capacitor: BR1,BR2,BRW,BRN,BRW2,BR,RN,RW,XRNC type fuse is used as internal fault protection for single capacitor of star connection capacitor combination in 10kV and less power system. The product can disconnect the fault capacitor reliably and quickly so as to avoid explosion accident as a result of component break down inside the capacitor to ensure that the power net operates continuously and safely.