A model based fault locating method for distribution systems

This paper presents a Fault Locating Method (FLM) which uses the current waveforms from Power Quality (PQ) Monitors located on a distribution feeder to determine the location of a permanent fault on the feeder. The method is model based in that it uses a detailed feeder model to estimate the fault currents and compares it with the data obtained from PQ monitors. Test results on the proposed FLM have been provided for two different distribution feeders.