Partial Dicharge Signal Analysis in Insulation Oil Using Optical Chromatic Technique

Mohd Muhridza Yaacob; Malik Abdulrazzaq Alsaedi

doi:10.4028/www.scientific.net/AMM.530-531.332

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In Situ Detection and Localization of Partial Discharge Using Acoustic Sensors
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Partial Dicharge Signal Analysis in Insulation Oil Using Optical Chromatic Technique
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 530-531Partial Dicharge Signal Analysis in Insulation Oil...

Partial Dicharge Signal Analysis in Insulation Oil Using Optical Chromatic Technique

Abstract:

In this work optical chromatic approch has been use to analyze PD signals in insulation oil. The study of chromatic approach of acoustic emission for PD phenomenon addressing PD signals with three detectors red, green and blue (R,G,B) having non-orthogonal (overlapping) responses. The outputs of the three detectors are transformed into a number of chromatic parameters designated x, y, z as well as hue, lightness and saturation (H,L,S). The x, y, z represents the proportion of the signal from each of the three processors while H, L, S represents the dominant phase, effective strength and notional spread of the PD signals respectively. This technique provides a high degree of traceability in relating the chromatic parameters to the raw PD signals. Changes in the values of the chromatic parameters are shown to reflect various PD trends and to provide early indications of incipient insulation failure and PD source discrimination.