![]() Cut off CurrentĬut-off current is the maximum value of the current actually reached before the fuse melts. The fusing factor is defined as the ratio of minimum fusing current to the fuse’s current rating.įusing Factor = Minimum Fusing Current / Current Rating of Fuse 4. ![]() The value of the fusing current will be more than the current rating of the fuse element. The fusing current is the minimum current at which the fuse element get melted. The current rating is the maximum current that a fuse element can carry safely without getting overheated and melting. The following terms need to understand for the study and analysis of the fuse: 1. Free from deterioration due to oxidation.For the satisfactory working of the fuse element it should have the following desirable characteristics: Characteristics of Fuse ElementĪs we have already discussed the function of a fuse is to carry the normal current under normal circumstances but whenever the current exceeds the rated value it gets melted and disconnects the electrical system. That is how a fuse protects the electrical system or equipment due to excessive currents. However, when a short circuit or overload occurs then the current through the fuse increased beyond its rated value and this, in turn, raises the temperature, and the fuse element melts down thereby disconnecting the circuit. ![]() Whenever equipment is running then the fuse carries the normal current as per the rating of the fuse without getting overheated.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |