The Main Role Of Drop-out Fuses In High-voltage Power Distribution Systems

drop out fuse uses the thermal fuse mechanism of its internal fuse to quickly cut off the circuit when the current rises abnormally, and the mechanical structure makes the fuse visible as it falls, thus providing an intuitive view of the open/closed state and helping on-site technicians to determine the location of the fault.

The design of 11 kv drop out fuse includes an insulating support, a fuse tube, and a contact assembly, with the fuse maintaining continuous conductivity under normal load conditions. Upon encountering a short-circuit current, the fuse melts due to heat, and the fuse tube falls from its support under gravity, breaking the current path and creating a clear isolation point. 11kv drop out fuse Compared to fixed protective elements, this visible open circuit status aids in on-site assessment and subsequent work arrangements.

11kv drop out fuse manufacturer is commonly found in 10kV and below power distribution lines and the high-voltage side of transformers. Its functions include disconnecting short-circuit currents and separating the protected circuit after the fuse blows, thus reducing fault propagation. The 33kv drop out fuse's design makes it easy to operate in outdoor environments, and the location of the component after it blows provides a clear indication of an open circuit.