Tracking and erosion resistance of silicone rubber nanocomposites under positive and negative dc voltages

Vas, JV and Venkatesulu, B and Thomas, MJ (2010) Tracking and erosion resistance of silicone rubber nanocomposites under positive and negative dc voltages. In: 2010 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 17-20 Oct. 2010, West Lafayette, IN.

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Abstract

ASTM D2303 standard provides a method for evaluating the tracking and erosion resistance of polymeric insulators under ac voltages. In this paper, the above method has been extended for evaluating the performance of the insulators under dc stresses. Tests were conducted on polymeric silicone rubber (SR) insulators under positive and negative dc stresses. Micron sized Alumina trihydrate (uATH) and nano sized Alumina (nALU) were used as fillers in SR matrix to improve the resistance to tracking and erosion. Results suggest that SR composites perform better under negative dc than under positive dc voltages. Eroded mass and leakage current data support the above result. Samples with low concentration of nano alumina fillers performed on par with the samples with large loadings of uATH.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 2010 IEEE. Personal use of this material is permitted.However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	20 Dec 2011 06:28
Last Modified:	20 Dec 2011 06:28
URI:	http://eprints.iisc.ac.in/id/eprint/39070

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