Particle Detection in Oil Using Acoustic and Electrical Based Techniques in Correlation with an Inference Method

Author

Sharkawy, R.M. ; Fakhry, S. ; Anis, H. ; Ghazaly, H.A.

Author_Institution

Nat. Inst. for Stand., Giza

Volume

2

fYear

2005

fDate

16-19 May 2005

Firstpage

1080

Lastpage

1085

Abstract

Partial discharge (PD) measurement is a proven flaw detection technique for finding defects in the insulating materials and thus accessing the integrity of the tested insulation. The different PD measurement techniques as well as the interpretation of the measurement results have been important research topics in the recent years. This paper contributes to the detection of the presence of free conducting particles in oil insulated apparatus. Acoustic and electrical based PD measurements were undertaken by deliberately introducing metallic particles of various compositions and dimensions in oil. The acoustic signal, formed due to the statistical analysis of the particle impact momentum during motion in oil was used as the basis for designing and training an intelligent classifier for disclosing the characteristics of the contaminating particle. It is proven that measurements and simulation results of the produced acoustics are in homogeneity

Keywords

acoustic measurement; correlation methods; flaw detection; inference mechanisms; insulating oils; neural nets; partial discharge measurement; signal detection; statistical analysis; transformer oil; acoustic based techniques; electrical based techniques; flaw detection technique; free conducting particle detection; inference method; insulating materials; intelligent classifier; oil insulated apparatus; partial discharge measurement; particle impact momentum; Acoustic measurements; Acoustic signal detection; Acoustic testing; Conducting materials; Insulation; Materials testing; Partial discharge measurement; Partial discharges; Petroleum; Pollution measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE

Conference_Location

Ottawa, Ont.

Print_ISBN

0-7803-8879-8

Type

conf

DOI

10.1109/IMTC.2005.1604309

Filename

1604309