The Impact of Interfaces and Space Charge Formation on Breakdown Strength of Epoxy Resin

I. Iddrissu; S. M. Rowland; A. Tzimas

doi:10.1109/CEIDP.2014.6995911

The Impact of Interfaces and Space Charge Formation on Breakdown Strength of Epoxy Resin

I. Iddrissu, S. M. Rowland, A. Tzimas

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

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Abstract

The re-emergence of HVDC necessitates re-evaluation of dielectric materials. Epoxy resin is employed as a dielectric material for joints and terminations in HV electrical systems up to about 75 kV, and higher ratings are required. Under DC however, space charge accumulation is a problem especially where interfaces are encountered. In this study, epoxy-epoxy laminates were fabricated and tested for space charge formation, using the PEA method, and breakdown strength under AC and DC were investigated. It was found that negative charges are accumulated at the layer interface and the breakdown strength under DC conditions is about 39% and 35% higher than that under AC condition for single and double layer samples respectively.

Original language	English
Title of host publication	host publication
Pages	90-93
Number of pages	4
DOIs	https://doi.org/10.1109/CEIDP.2014.6995911
Publication status	Published - 2014
Event	Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) - Des Moines Duration: 1 Jan 1824 → …

Conference

Conference	Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)
City	Des Moines
Period	1/01/24 → …

Keywords

epoxy laminates, space charge, PEA, breakdown strength, AC, HVDC

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10.1109/CEIDP.2014.6995911

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title = "The Impact of Interfaces and Space Charge Formation on Breakdown Strength of Epoxy Resin",

abstract = "The re-emergence of HVDC necessitates re-evaluation of dielectric materials. Epoxy resin is employed as a dielectric material for joints and terminations in HV electrical systems up to about 75 kV, and higher ratings are required. Under DC however, space charge accumulation is a problem especially where interfaces are encountered. In this study, epoxy-epoxy laminates were fabricated and tested for space charge formation, using the PEA method, and breakdown strength under AC and DC were investigated. It was found that negative charges are accumulated at the layer interface and the breakdown strength under DC conditions is about 39% and 35% higher than that under AC condition for single and double layer samples respectively.",

keywords = "epoxy laminates, space charge, PEA, breakdown strength, AC, HVDC",

author = "I. Iddrissu and Rowland, {S. M.} and A. Tzimas",

note = "The authors are grateful to the RCUK{\textquoteright}s Energy Programme for the financial support of this work through the Top & Tail Transformation grant, EP/1031707/1 (http://www.topandtail.org.uk); Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) ; Conference date: 01-01-1824",

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AU - Iddrissu, I.

AU - Rowland, S. M.

AU - Tzimas, A.

N1 - The authors are grateful to the RCUK’s Energy Programme for the financial support of this work through the Top & Tail Transformation grant, EP/1031707/1 (http://www.topandtail.org.uk)

PY - 2014

Y1 - 2014

N2 - The re-emergence of HVDC necessitates re-evaluation of dielectric materials. Epoxy resin is employed as a dielectric material for joints and terminations in HV electrical systems up to about 75 kV, and higher ratings are required. Under DC however, space charge accumulation is a problem especially where interfaces are encountered. In this study, epoxy-epoxy laminates were fabricated and tested for space charge formation, using the PEA method, and breakdown strength under AC and DC were investigated. It was found that negative charges are accumulated at the layer interface and the breakdown strength under DC conditions is about 39% and 35% higher than that under AC condition for single and double layer samples respectively.

AB - The re-emergence of HVDC necessitates re-evaluation of dielectric materials. Epoxy resin is employed as a dielectric material for joints and terminations in HV electrical systems up to about 75 kV, and higher ratings are required. Under DC however, space charge accumulation is a problem especially where interfaces are encountered. In this study, epoxy-epoxy laminates were fabricated and tested for space charge formation, using the PEA method, and breakdown strength under AC and DC were investigated. It was found that negative charges are accumulated at the layer interface and the breakdown strength under DC conditions is about 39% and 35% higher than that under AC condition for single and double layer samples respectively.

KW - epoxy laminates, space charge, PEA, breakdown strength, AC, HVDC

U2 - 10.1109/CEIDP.2014.6995911

DO - 10.1109/CEIDP.2014.6995911

M3 - Conference contribution

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EP - 93

BT - host publication

T2 - Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)

Y2 - 1 January 1824

ER -

The Impact of Interfaces and Space Charge Formation on Breakdown Strength of Epoxy Resin

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