Acoustic source location of partial discharges in transformers
S. E. U. Lima, O. Frazão, INESC Porto - Institute for Systems and Computers Engineering of Porto (Portugal); R. G: Farias, Federal University of Pará (Brazil); F. M. Araújo, L. A. Ferreira, V. Miranda, J. L. Santos, INESC Porto - Institute for Systems and Computers Engineering of Porto (Portugal)
Acoustic emission monitoring is often used in the diagnosis of electrical and mechanical incipient faults in high voltage apparatus. Partial discharges are a major source of insulation failure in power transformers and the differentiation from other sources of acoustic emissions is of the utmost importance. Also, it is important to give an indication of the PD source location in order to obtain a useful diagnosis. This paper reports the developments in partial discharges source location through the associated acoustic emissions using three different algorithms.
