Correlation between corona current and radio interference due to high voltage insulator string

Reddy, Subba B and Kumar, Udaya and Nath, Debasish (2012) Correlation between corona current and radio interference due to high voltage insulator string. In: IEEE 2012 Electrostatics Joint Conference, June 12-14, 2012, Cambridge, Ontario, Canada.

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Abstract

The Radio Interference (RI) from electric power transmission line hardware, if not controlled, poses serious electromagnetic interference to system in the vicinity. The present work mainly concerns with the RI from the insulator string along with the associated line hardware. The laboratory testing for the RI levels are carried out through the measurement of the conducted radio interference levels. However such measurements do not really locate the coronating point, as well as, the mode of corona. At the same time experience shows that it is rather difficult to locate the coronating points by mere inspection. After a thorough look into the intricacies of the problem, it is ascertained that the measurement of associated ground end currents could give a better picture of the prevailing corona modes and their intensities. A study on the same is attempted in the present work. Various intricacies of the problem,features of ground end current pulses and its correlation with RI are dealt with. Owing to the complexity of such experimental investigations, the study made is not fully complete nevertheless it seems to be first of its kind.

Item Type:	Conference Proceedings
Publisher:	IEEE
Additional Information:	Copyright of this article belongs to IEEE.
Keywords:	Radio Interference; Corona; High Voltage Transmission; Insulators; Conductor Hardware; Corona Current
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	15 Apr 2013 05:59
Last Modified:	15 Apr 2013 05:59
URI:	http://eprints.iisc.ac.in/id/eprint/46374

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