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Computation of EMI Fields Generated Due to Corona on High Voltage Over Head Power Transmission Lines

Nayak, SK and Thomas, Joy M (2002) Computation of EMI Fields Generated Due to Corona on High Voltage Over Head Power Transmission Lines. In: International Conference on Electromagnetic Interference and Compatibility, 2001/02, 21-23 February, Bangalore,India, pp. 15-19.


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Corona generated pulsed currents on high voltage transmission line conductors radiate electromagnetic fields, which, in turn, can interfere with communication systems, and radio as well as television receivers operating nearby. In this paper, the corona generated electromagnetic interference (EMI) field in dB at an observation point near the ground has been computed assuming the ground as a perfect conductor. It has been observed that the interference field starts abruptly at the corona inception voltage and it increases with the voltage stress on the conductor. It is also observed that the EMI field reduces with increase in lateral distance and also with increase in frequency as well as the conductor diameters for the same line voltage.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre: Division of Electrical Sciences > High Voltage Engineering (merged with EE)
Date Deposited: 03 Feb 2006
Last Modified: 19 Sep 2010 04:23
URI: http://eprints.iisc.ac.in/id/eprint/5275

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