Quali sono le applicazioni dei fusibili di abbandono?

Drop out fuses are an important protection device widely used in power systems. Their main function is to quickly cut off the current when the circuit is overloaded or short-circuited, thereby protecting the safety of electrical equipment and lines.

This device plays a key role in the distribution network due to its simple structure, low cost, and convenient installation. Typical application scenarios of drop-out fuses include the branch lines of overhead distribution lines, the high-voltage side of transformers, and the incoming line end of distribution transformers. For example, in the construction of urban distribution networks or rural power grids, they are often installed on the crossarms of poles to control the line current in sections. When a line fails, the fuse will melt under the action of overload current, and the fuse tube will automatically fall due to gravity, forming an obvious disconnection point, which not only realizes rapid isolation of the fault, but also facilitates the operation and maintenance personnel to intuitively determine the fault location.

In the power supply system of industrial and mining enterprises, drop out fuses are often used in conjunction with load switches to form an economical and reliable protection solution. Its unique arc extinguishing ability can effectively cut off the short-circuit current within the rated range to avoid the expansion of faults. In addition, with the development of distributed energy, drop-out fuses are also used in the collector lines of photovoltaic power stations to provide basic protection for new energy systems. It is worth noting that the operation and maintenance of the device is equally important. The fuse status and contact contact conditions need to be checked regularly to ensure that it can operate reliably when the power grid suddenly fails.

As a long-standing protection device in the power system, drop out fuses still play an irreplaceable role in specific scenarios through continuous technical improvements. Their economy and applicability make them an important part of the protection of medium and low voltage distribution networks.