Investigations on feasibility of fault detection in underground power cables using SFRA

Abstract

One of the most strenuous task is to locate the position of fault in power cables. There are many techniques which are available to locate faults, but each one have its own advantages and disadvantages. Contrary to the conventional reflectometry based methods, this paper explores a technique based on Sweep frequency response analysis (SFRA) in which reflection of the wave are not required. Sweep frequency response analysis (SFRA) are mostly used in transformer for checking the healthiness of its winding and to locate different faults and defects in it. In this paper using the same concept of SFRA in transformer, detection and location of fault in a cable has been investigated using PSpice simulation.