A Drop-out Fuse Is An Electrical Component That Automatically Protects Electrical Equipment From Damage.

In terms of design, drop out fuse 22kv includes components such as an insulating support, moving and stationary contacts, and a fuse tube. The fuse inside the fuse tube is made of fusible metal. Under normal conditions, the fuse tube is mechanically secured, allowing current to flow through the device. When a short circuit or overcurrent occurs, the fuse in the drop out fuse 33kv fuse tube melts due to thermal effect. After the contacts lose tension, the fuse tube rapidly descends under the influence of gravity and spring force, breaking the circuit.

This design not only allows for direct interruption of current in the event of a fault but also provides maintenance personnel with a clear indication of the circuit breakers. In some power distribution systems, drop out fuse cut out can also be used in conjunction with equipment such as disconnect switches to form a safe isolation point during maintenance or replacement.