Understanding Failure analysis using harmonic analysis and empirical mode decomposition techniques

Nandi, S and Subba Reddy, B (2022) Understanding Failure analysis using harmonic analysis and empirical mode decomposition techniques. In: Engineering Failure Analysis, 139 .

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Abstract

The investigation pertains to the failure analysis of Fibre Reinforced Plastic rods used in overhead transmission line insulators using appropriate data acquisition and analysis. The leakage current data, over an experimental period is captured and time–frequency analysis is implemented for determining the in-service condition of the overhead transmission insulators. It is observed from the investigation that the signal displays various events like dry-band arcing, partial surface arcs and triple-point discharges at the electrodes. The study presents a simple time–frequency analysis used for presenting the phenomena, an algorithm is developed for the harmonic analysis, also Empirical Mode Decomposition is conducted to reinforce the analysis. The main focus of the study is to estimate the early failures with minimal time and with available data.

Item Type:	Journal Article
Publication:	Engineering Failure Analysis
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to the Elsevier Ltd.
Keywords:	Condition monitoring; Data acquisition; Failure analysis; Fast Fourier transforms; Harmonic analysis; Reinforcement; Surface discharges, Current data; Dry band arcing; Empirical Mode Decomposition; Fiber reinforced plastic rod; Insulator; Mode decomposition techniques; Overhead transmission lines; Power-spectra; Service conditions; Time-frequency Analysis, Fiber reinforced plastics
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	15 Jun 2022 09:47
Last Modified:	15 Jun 2022 09:47
URI:	https://eprints.iisc.ac.in/id/eprint/73572

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