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Computation of power released during corona treatment on polymeric insulators under ac and dc excitation

Reddy, Subba B and Prasad, Shakthi D (2015) Computation of power released during corona treatment on polymeric insulators under ac and dc excitation. In: 7th International Conference on Applied Energy (ICAE), MAR 28-31, 2015, Abu Dhabi, U ARAB EMIRATES, pp. 2205-2210.

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Official URL: http://dx.doi.org/10.1016/j.egypro.2015.07.380

Abstract

With increasing energy demand, it necessitates to generate and transmit the electrical power with minimal losses. High voltage power transmission is the most economical way of transmitting bulk power over long distances. Transmission insulator is one of the main components used as a mechanical support and to electrically isolate the conductor from the tower. Corona from the hardware and conductors can significantly affect the performance of the polymeric insulators. In the present investigation a methodology is presented to evaluate the corona performance of the polymeric shed material under different environment conditions for both ac and dc excitation. The results of the comprehensive analysis on various polymeric samples and the power released from the corona electrode for both the ac and dc excitation are presented. Some interesting results obtained from the chemical analysis confirmed the presence of nitric acid species on the treated sample which in long term will affect the strength of the insulator, also the morphological changes were found to be varying for different experimental conditions. (C) 2015 The Authors. Published by Elsevier Ltd.

Item Type: Conference Proceedings
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE BV, SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Keywords: Corona; power; degradation; polymer insulator; fog; FTIR; SEM
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Depositing User: Id for Latest eprints
Date Deposited: 15 Oct 2015 06:42
Last Modified: 15 Oct 2015 06:42
URI: http://eprints.iisc.ac.in/id/eprint/52562

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