The Impact of Harmonic Frequencies on Electrical Tree Growth in Epoxy Resin

Ibrahim Iddrissu; Simon Rowland

doi:10.1109/CEIDP.2017.8257504

The Impact of Harmonic Frequencies on Electrical Tree Growth in Epoxy Resin

Ibrahim Iddrissu, Simon Rowland

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

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Abstract

Electrical treeing in solid polymeric insulation is physical evidence of internal damage and ultimately leads to equipment failure. This study considers the effect of frequency on treeing breakdown times in epoxy resin between 50 Hz to 450 Hz. The tree structures generated from 50 to ~250 Hz were filamentary, had narrow channels and spread throughout the insulation. Tree structures generated from ~250 Hz to 450 Hz were darker, having wider channels and less branching. The rate of tree initiation and propagation increases with increasing frequency, resulting in reduced time to breakdown. This has implications that harmonics in AC and DC networks require careful management to ensure insulation reliability is not compromised.

Original language	English
Title of host publication	IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)
DOIs	https://doi.org/10.1109/CEIDP.2017.8257504
Publication status	Published - 2018

Keywords

Electrical treeing
frequency
acceleration
initiation ad breakdown times
asset management

Access to Document

10.1109/CEIDP.2017.8257504

Final Version of CEIDP 2017 PaperAccepted author manuscript, 426 KB

Cite this

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title = "The Impact of Harmonic Frequencies on Electrical Tree Growth in Epoxy Resin",

abstract = "Electrical treeing in solid polymeric insulation is physical evidence of internal damage and ultimately leads to equipment failure. This study considers the effect of frequency on treeing breakdown times in epoxy resin between 50 Hz to 450 Hz. The tree structures generated from 50 to ~250 Hz were filamentary, had narrow channels and spread throughout the insulation. Tree structures generated from ~250 Hz to 450 Hz were darker, having wider channels and less branching. The rate of tree initiation and propagation increases with increasing frequency, resulting in reduced time to breakdown. This has implications that harmonics in AC and DC networks require careful management to ensure insulation reliability is not compromised.",

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AU - Iddrissu, Ibrahim

AU - Rowland, Simon

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N2 - Electrical treeing in solid polymeric insulation is physical evidence of internal damage and ultimately leads to equipment failure. This study considers the effect of frequency on treeing breakdown times in epoxy resin between 50 Hz to 450 Hz. The tree structures generated from 50 to ~250 Hz were filamentary, had narrow channels and spread throughout the insulation. Tree structures generated from ~250 Hz to 450 Hz were darker, having wider channels and less branching. The rate of tree initiation and propagation increases with increasing frequency, resulting in reduced time to breakdown. This has implications that harmonics in AC and DC networks require careful management to ensure insulation reliability is not compromised.

AB - Electrical treeing in solid polymeric insulation is physical evidence of internal damage and ultimately leads to equipment failure. This study considers the effect of frequency on treeing breakdown times in epoxy resin between 50 Hz to 450 Hz. The tree structures generated from 50 to ~250 Hz were filamentary, had narrow channels and spread throughout the insulation. Tree structures generated from ~250 Hz to 450 Hz were darker, having wider channels and less branching. The rate of tree initiation and propagation increases with increasing frequency, resulting in reduced time to breakdown. This has implications that harmonics in AC and DC networks require careful management to ensure insulation reliability is not compromised.

KW - Electrical treeing

KW - frequency

KW - acceleration

KW - initiation ad breakdown times

KW - asset management

U2 - 10.1109/CEIDP.2017.8257504

DO - 10.1109/CEIDP.2017.8257504

M3 - Conference contribution

BT - IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)

ER -

The Impact of Harmonic Frequencies on Electrical Tree Growth in Epoxy Resin

Abstract

Keywords

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