Partial discharge propagation model and location estimate

This paper describes a partial discharge propagation model and a location estimate which uses digital signal processing techniques. The model and the estimate are developed for an instrument which is capable of locating partial discharge sites in power cables non-destructively and in situ. Since the model utilizes actual cable response to partial discharge signals, it provides an excellent waveform match between simulations and measurements. The estimator can locate partial discharge sites in noisy environments with an error not exceeding 2 m. Applications of this model to field test data are also discussed