Extending switching reclosing time to reduce interruptions in distribution networks

In the paper the authors evaluate the possible benefits of extending the switching reclosing time to reduce transient interruptions in distribution networks. A probabilistic fault arc reignition model for MV distribution networks developed with a simulation tool, permits investigating on the possible benefits of the extension of the switching reclosing time delay before the first fast reclosure. The application of the model in simulating realistic MV, shows that an enlarged reclosing time may result in a reduction of the probability of fault reignition and, thus, a significant impact in increasing the number of self- extinguish faults and decreasing the number of sustained interruptions.