Magnetic field emissions extending from low frequency to several MHz are the main electromagnetic phenomenon that characterize the emissions of electrified traction lines. In this paper a general model is proposed based on Biot-Savart law as a low frequency approximation and Hertzian dipole equations for the extension to the high frequency range. The current in the line conductors are computed with a Multiconductor Transmission Line simulator. The results are compared with the data collected in a measurement campaign operated on a metro line equipped with third rail system.
Modeling the magnetic field emissions from a third rail system
MARISCOTTI, ANDREA;
2010-01-01
Abstract
Magnetic field emissions extending from low frequency to several MHz are the main electromagnetic phenomenon that characterize the emissions of electrified traction lines. In this paper a general model is proposed based on Biot-Savart law as a low frequency approximation and Hertzian dipole equations for the extension to the high frequency range. The current in the line conductors are computed with a Multiconductor Transmission Line simulator. The results are compared with the data collected in a measurement campaign operated on a metro line equipped with third rail system.
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