Title :
Onset voltage of corona on coated conductors
Author :
Abdel-Salam, M. ; Abo-Shal, Y.
Author_Institution :
Dept. of Electr. Eng., Assiut Univ., Egypt
Abstract :
This paper aims to investigate the effects of surface coating on the positive and negative onset voltages of corona from stressed conductors as a prerequisite for onset-voltage calculation. The electric field is accurately calculated by the charge simulation technique. The calculated onset voltages agreed satisfactorily with those measured experimentally for bare conductors. The effect of coating-layer thickness and permittivity as well as conductor radius and height on the onset-voltage values is discussed
Keywords :
corona; electric breakdown; electric charge; electrostatics; power cable insulation; power transmission lines; charge simulation technique; coated conductors; corona; electric field; height; insulating layers; negative onset voltages; permittivity; power transmission conductors; radius; stressed conductors; surface coating; thickness; Acoustic noise; Coatings; Conducting materials; Conductors; Corona; Frequency; Permittivity measurement; Power transmission; Power transmission lines; Voltage;
Conference_Titel :
Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3008-0
DOI :
10.1109/IAS.1995.530439
