Restoration in Active Electrical Distribution Systems for Reduction of Customers Financial Losses

In this paper, restoration of the customers in distribution network considering the annual financial losses of the process trips has been studied. The most purpose for restoration of customers is to the restore the maximum possible load. For evaluation of the financial losses of the process trips, a new concept in the field of power quality named process immunity time have been used. Impact of two equipmentchr('39')s – disconnector and automated sectionalizing switches on the geographic area, financial losses and reliability indices will be reviewed. In this paper, restoration priority will be with the customers outside of the fault section. IEEE 34 node test feeder is simulated as the base network and the results will be analyzed and evaluated. Then two DGchr('39')s are connected in two arbitrary locations. Eventually, DG will be transferred to near the industrial load in order to examine the results. In this paper, restoration priority is with customers outside of the fault section.