A novel technique to distinguish between transient and permanent faults based on the detection of current transients

This paper presents a new technique for transient and permanent fault identification in an adaptive reclosure by using the fault generated high frequency current transients. A specifically designed transient and permanent fault identification unit is used to capture the fault arc generated high frequency current noise, and a signal processing algorithm is then used to determine whether the fault is transient or permanent, and the fault sustain time for a transient fault