WIT Press


Underground Power Cables In Urban Areas: Of The Magnetic Field A Simple Technique For The Passive Shielding

Price

Free (open access)

Volume

72

Pages

10

Published

2004

Size

945 kb

Paper DOI

10.2495/SC040571

Copyright

WIT Press

Author(s)

L. Battistelli, A. Geri, P. Prignani & G.M. Veca

Abstract

L. Battistelli1, A. Geri1, P. Prignani2 & G. M. Veca1 1Department of Electrical Engineering, University of Rome \“La Sapienza”, Italy 2Provincia di Roma, Dipartimento n. 2 \“Ambiente”, Servizio n. 3 \“Tutela dell’aria”, Rome, Italy Abstract In this paper the authors propose a parametric analysis in order to estimate the magnetic pollution due to typical flat configurations of underground power cable lines layed in urban areas. They also investigate the performances of open or closed shields, made of conductive or magnetic materials, in order to reduce the magnetic pollution due to existing installations or new installations. Numerical procedures, based on a finite element model, are applied to develop efficient shielding techniques in a real-life example, consisting of a typical flat configuration of a three phase 150 kV underground power cable line placed in an urban area. Finally, an attempt to carry out new criteria and guidelines for the optimal design of simple shielding configurations has be

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