Open AccessCorona and Electric Field Distribution Analysis in 400 kV Line Insulators
Author(s) -
Ragaleela Dalapati Rao,
Padmanabha Raju Chinda,
M. Santosh Kiran
Publication year - 2021
Publication title -
advances in technology innovation
Language(s) - English
Resource type - Journals
eISSN - 2518-2994
pISSN - 2415-0436
DOI - 10.46604/aiti.2021.5966
Subject(s) - corona ring , insulator (electricity) , electric field , corona (planetary geology) , corona discharge , transmission line , materials science , electrical engineering , electric power transmission , voltage , electrical conductor , composite material , physics , engineering , quantum mechanics , astrobiology , venus
The performance of insulator strings in transmission lines can be improved by corona rings owing to their electric field grading property. The insulation performance of the string depends on the corona ring parameter settings. In this study, the design of a corona ring for a 400 kV non-ceramic overhead line insulator is presented. Two parameters were altered during the investigation, ring measurement (R) and ring tube breadth (r) while maintaining a constant ring height (h). Based on electric field distribution, the proposed composite insulators were compared with glass insulators. Simulation studies were performed for the insulator strings, including corona rings with different design parameters. The corona discharge and optimal configuration results were analyzed, and it was found that the electric field was lower with composite insulators.