Data analysis and optimal specification of fuse model for fault study in power systems

In order to study the thermal energy in the process of fuse melting, data analysis is conducted on the time/current curve provided by the manufacturer. Data analysis methodologies, such as sampling, variance analyze and residual sum of squares analyze, are performed in this process. These methods provide us the most optimal equation to describe the relationship between time, different level of fault current and the thermal energy that melts the fuse. A simulation fuse model is developed based on this result, and this model is tested in both DC and AC environment for verification purposes.