Title :
Characterisation of corona formation for twin-point/plane gaps under HVAC
Author :
Metwally, I.A. ; Eng, B. ; Eng, M.
Author_Institution :
Dept. of Electr. Eng., Mansoura Univ.
Abstract :
Corona formation in twin-point/plane gaps is experimentally investigated under HVAC. There are many factors affecting such corona formation. The investigated factors are the spacing between the two points, gap length between the twin-point and the plane, ambient temperature, relative humidity, frequency of the applied voltage, and electrode material. In order to study and explain such phenomena, a photographic investigation together with a simultaneous measurement of both the applied voltage and the corona current are also introduced
Keywords :
corona; electric current measurement; insulator contamination; overhead line conductors; power overhead lines; spark gaps; voltage measurement; HVAC; ambient temperature; applied voltage frequency; applied voltage measurement; corona current measurement; corona formation; electrode material; gap length; insulation deterioration; overhead transmission lines; photographic investigation; point spacing; relative humidity; twin-point/plane gaps; Conductors; Corona; Current measurement; Electrodes; Frequency; Pollution measurement; Surface contamination; Surface discharges; Testing; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1995. Annual Report., Conference on
Conference_Location :
Virginia Beach, VA
Print_ISBN :
0-7803-2931-7
DOI :
10.1109/CEIDP.1995.483744
