LOCATION OF OUTAGES IN DISTRIBUTION-SYSTEMS BASED ON STATISTICAL HYPOTHESES TESTING

Quick restoration of power following an outage has been a challenge fo r power distribution engineers. Many researchers have drawn attention to this problem by proposing methods for location of outages in the di stribution systems. The method presented in this paper for outage loca tion is based on statistical hypotheses testing. The input data consis ts of time-of-outage measurements obtained from customer-ends. The eff ect of various levels of noise in the measurements on performance of t he method is studied. A procedure for discarding outliers in the measu rements is included. A theoretical procedure to determine the maximum noise allowed in the measurements is presented. Also, performance of t he method at different locations in a test system is studied.