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Numerical study into the breakdown strength of a two phase (gas-liquid) insulation system

Numerical study into the breakdown strength of a two phase (gas-liquid) insulation system
Numerical study into the breakdown strength of a two phase (gas-liquid) insulation system
This paper investigates the electric potential and field of a two phase (gas-liquid) system. The study uses finite element analysis (FEA) techniques to investigate the impact of a gas bubble on the bulk electric field. The FEA model is expanded to consider the multiple bubble breakdown probability using Monte Carlo techniques. The numerical results demonstrate that compared with bubble quantity, bubble radius is the dominant factor for two phase system electrical breakdown. Furthermore, the effective breakdown strength of a two phase system has been determined as a function of gas phase volume fraction. The predicted two phase effective breakdown strength has then been compared against the mixture rule, where good agreement was achieved.
thermosiphon, two phase system, thermal bubble, electrical breakdown
978-1-4799-7354-5
13-16
Wu, S.
73a763f3-66a6-4cac-a2fe-c83e7e30fa56
Chippendale, R.D.
192d7845-80dd-4f92-979b-d13c1b870a62
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Hemrle, J.
7d69cb33-bf52-4d8f-bdf1-ce7a1a7a8820
Kaufmann, L.
ad37b69e-5b95-4fe5-a422-4f6c039767cd
Wu, S.
73a763f3-66a6-4cac-a2fe-c83e7e30fa56
Chippendale, R.D.
192d7845-80dd-4f92-979b-d13c1b870a62
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Hemrle, J.
7d69cb33-bf52-4d8f-bdf1-ce7a1a7a8820
Kaufmann, L.
ad37b69e-5b95-4fe5-a422-4f6c039767cd

Wu, S., Chippendale, R.D., Lewin, P.L., Hemrle, J. and Kaufmann, L. (2015) Numerical study into the breakdown strength of a two phase (gas-liquid) insulation system. 2015 IEEE Electrical Insulation Conference (EIC), United States. 07 - 10 Jun 2015. pp. 13-16 .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper investigates the electric potential and field of a two phase (gas-liquid) system. The study uses finite element analysis (FEA) techniques to investigate the impact of a gas bubble on the bulk electric field. The FEA model is expanded to consider the multiple bubble breakdown probability using Monte Carlo techniques. The numerical results demonstrate that compared with bubble quantity, bubble radius is the dominant factor for two phase system electrical breakdown. Furthermore, the effective breakdown strength of a two phase system has been determined as a function of gas phase volume fraction. The predicted two phase effective breakdown strength has then been compared against the mixture rule, where good agreement was achieved.

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More information

Published date: 7 June 2015
Venue - Dates: 2015 IEEE Electrical Insulation Conference (EIC), United States, 2015-06-07 - 2015-06-10
Keywords: thermosiphon, two phase system, thermal bubble, electrical breakdown
Organisations: EEE

Identifiers

Local EPrints ID: 378045
URI: http://eprints.soton.ac.uk/id/eprint/378045
ISBN: 978-1-4799-7354-5
PURE UUID: 652b0f7a-dc9d-4c17-a693-dfd61ded6399

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Date deposited: 15 Jun 2015 12:50
Last modified: 19 Jul 2019 20:42

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Contributors

Author: S. Wu
Author: R.D. Chippendale
Author: P.L. Lewin
Author: J. Hemrle
Author: L. Kaufmann

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