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Simulation of surface and volume stress for high voltage transmission insulators

Basappa, Subba Reddy and Kumar, Udaya (2012) Simulation of surface and volume stress for high voltage transmission insulators. In: International Journal of Computers & Applications .

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Official URL: http://www.actapress.com/Abstract.aspx?paperId=428...

Abstract

The bulk of power transmission from the generating stations to the load centres is carried through overhead lines. The distances involved could span several hundreds of kilometres. To minimize line losses, power transmission over such long distances is carried out at high voltages (several hundreds of kV). A network of outdoor lines operating at different voltages has been found to be the most economical method of power delivery. The disc insulators perform dual task of mechanically supporting and electrically isolating the live phase conductors from the support tower. These insulators have to perform under various environmental conditions; hence the electrical stress distribution along the insulators governs the possible flashover, which is quite detrimental to the system. In view of this the present investigation aims to simulate the surface electric field stress on different types of porcelain/ceramic insulators; both normal and anti-fog type discs which are used for high voltage transmission/distribution systems are considered. The surface charge simulation method is employed for the field computation to simulate potential, electric field, surface and bulk/volume stress.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to ACTA Press.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 10 May 2012 11:02
Last Modified: 10 May 2012 11:02
URI: http://eprints.iisc.ernet.in/id/eprint/44373

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