Universiti Teknologi Malaysia Institutional Repository

Study on corona discharge of conventional lightning air terminals

Ahmad, Hussein and Abu Bakar, Muhammad (2006) Study on corona discharge of conventional lightning air terminals. In: 11th Int. Middle East Power System Conf. (MEPCON 2006),Egypt, 2006, University of El-minia,Egypt.

[img]
Preview
PDF
64Kb

Official URL: http://ieeexplore.ieee.org

Abstract

A lightning air terminal (LAT) tip can be damaged under prolonged period of service due to harsh environmental conditions among those is the impact of acid rain. The altered LAT tip profile will ultimately produce different corona discharge pattern which can influence the performance of the LAT itself. This paper presents a new closed loop mathematical modelling which can simulate the magnitude of corona discharge currents of various LAT tip configurations ranging from the typical standard electrode practice in Malaysia, concave-shaped, conical-shaped and flat-shaped as well the blunt-shaped tip under the excitation of high voltage DC. The finding strengthened the fact that the blunt-shape LAT attracts more lightning leaders attachment than the sharp-tip LAT.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:DC voltage, LAT tip, Malaysia, closed loop mathematical modelling, corona discharge pattern, lightning air terminal, standard electrode
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:25523
Deposited By: Liza Porijo
Deposited On:20 May 2012 03:50
Last Modified:22 May 2012 00:10

Repository Staff Only: item control page