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Energies 2011, 4(12), 2196-2211; doi:10.3390/en4122196

Article

Numerical Analysis of the Magnetic Field of High-Current Busducts and GIL Systems

Petar Sarajcev

University of Split, Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture, R. Boskovica 32, HR-21000 Split, Croatia

Received: 25 October 2011; in revised form: 29 November 2011 / Accepted: 5 December 2011 / Published: 13 December 2011

Download PDF Full-Text [695 KB, uploaded 13 December 2011 11:00 CET]

Abstract: This paper presents a numerical computation method for determining the magnetic field of high-current busducts of circular cross-section geometry, based on the subdivision of the busduct phase conductors and screens into the conductor filaments and the subsequent application of the mesh-current method, with the aid of the geometric mean distance method. The mathematical model takes into account the skin effect and the proximity effects, as well as the complete electromagnetic coupling between phase conductors and metal enclosures (i.e., screens) of the single-phase isolated busduct system (of circular cross-section geometry). This model could be readily applied to the computation of the magnetic field of the Gas Insulated Transmission Lines (GIL) as well.

Keywords: high-current busduct; gas-insulated transmission line; electromagnetic field; filament method; mesh-current method; geometric mean distance method

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