Study on the Fracture Mechanism of Suspension Insulator String Subjected to Large Wind and its Vibration Control

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This paper deals with a numerical and experimental approach trying to solve some suspension insulator string failure problems, experienced on a quadruple bundle transmission line. The FEM of the system is presented in order to analyze the dynamic behavior of the system. Then an experimental setup is designed according to the similarity by means of FEM analysis. The bending strain level on the insulator string experienced to subspan oscillation is tested in the experimental span, and the frcature mechanism is validated. Finally, the solution adopted to limit the subspan oscillation within safe values is presented and discussed.

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3654-3657

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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