Which Aspects Are Reflected In The Selection Principles Of Drop-out Fuses?

33kv drop out fuse Selection principle is reflected in which aspects

33kv fuse Selection principle is reflected in which aspects? Let the editor of cover drop out fuse manufacturer introduce it to you!

First, the selection of drop fuse type

It makes sense to choose the type of drop fuse cutout based on the protection characteristics of the load and the expected short-circuit current. For example, if consumers want to protect small-capacity lighting circuits and motors, they need to consider their overcurrent protection and choose drop out expulsion fuse with a smaller solvent coefficient. Or when encountering a large short-circuit current, it is better to use drop out fuse 22kv with high breaking capacity. Moreover, manufacturers specializing in the production of drop out fuse 33kv will provide various types and different series of products, and consumers do not need to worry about not being able to choose the right type of drop out fuse cut out.

Second, the selection of the rated voltage of the fuse

When consumers choose fast fuses, try to ensure that the rated voltage of the fuse is not lower than the rated working voltage of the line. When the fuse is used in a DC circuit, attention should be paid to the DC circuit data provided by the manufacturer or consultation should be conducted with the manufacturer, otherwise the voltage should be reduced.
Third, the selection of the rated current of the fuse
When the fast fuse needs to be used to protect lighting or electric heating equipment, the rated current of the selected fuse should be equal to or slightly greater than the rated current of the load. For fuses used to protect motors, it is appropriate to consider them according to the starting current multiple of the motor, because only in this way can the influence of the starting current of the motor be effectively avoided. Motors that are not started frequently or have a short starting time should choose a small multiple, while motors that are started frequently should choose a large multiple.