Determining the switching impulse breakdown voltage over large air gaps with an application to tower-conductor window configurations

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1998

Authors

Ehlers, Richard

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Abstract

All available model used to determine the 50% breakdown voltage for rod-type ami conductor-type gaps subject to switching is impulse wave forms has been applied to a tower-conductor window gap configurution. The results for rod-plane, conductor-piane and tower-conductor window gaps have all been compared and correspond well with practical data. III order to app(v the model, a charge simulation technique has been adopted ill conjunction with the 'Coulomb 3D' charge simulation package. Additional tests have been performed where parameters of'the charge simulation method am! the electrode geometl:p hare been adjusted and consequent conclusions made. Recommendations for further application of tile model have been suggested.

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A dissertation submitted to the Faculty of Engineering, University of the Witwatersrand, in fulfilment of the requirements for the degree of Master of Sclenice in Engineering February 20th, 1998

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Ehlers, Richard (1998) Determining the switching impulse breakdown voltage over large air gaps with an application to tower-conductor window configurations, University of the Witwatersrand, Johannesburg, <http://hdl.handle.net/10539/22712>

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