Partial Discharge Detection and Localization in High Voltage Transformers Using an Acoustic Emission Technique

Abstract

In this paper Optical acoustic (OA) sensor is use to study the partial discharge detection and location in
high voltage transformer. This paper present a fiber optic acoustic sensing system design that can be used to detect and
locate the PD source within transformer. This system is based on optical acoustic sensor that is capable of surviving good
environment of transformer interior without changing transformer functionality. It also present positioning system design
using TDOA (time difference of arrival) of acoustic pulse with respect to four sensor that is capable of detecting 3D
positioning of PD within ±2 cm on any axis