"KB, KU, KS" Type of Fuse Wire (Fuse Link)

Accurate time-current characteristics

The fuse element adopts the accurately tested material, high purity silver, or silver-copper eutectic or nickel-chrome eutectic, based on different rated current. The fuse element wire is extruded by mold of high accuracy. The cross section is inspected by laser micrometer to ensure the accuracy, while careful assembly guarantees no crack, shrinkage or twist which affects the time-current accuracy.

Durability

Swaged connected end and high strength strain wire make the fuse link not affected by aging, vibration, or high current impulse which may heat the fuse element nearly to the severing point. When the fuse link in the 1st phase or 2nd phase operates in a three phase circuit, only the melted fuse link needs to be replaced, and no need to replace all the fuse links in the circuit.

Good fault interrupting capability

The device has good fault interruption capability and can effectively interrupt internal faults in the primary and secondary sides of the transformer in a timely manner. It can reliably handle short-circuit faults of the bushing on the secondary side of the transformer, as well as short-circuit faults between the bushing on the secondary side of the transformer and the air switch, thereby effectively protecting the safe operation of the transformer. Through rapid response and accurate fault detection, the device ensures that the transformer can quickly cut off the current when a fault occurs, reducing the risk of equipment damage, extending the service life of the transformer, and improving the stability and reliability of the overall power system.