Multistress Aging Studies on HTV Silicone Rubber Insulators

Verma, Alok Ranjan and Reddy, Subba B (2017) Multistress Aging Studies on HTV Silicone Rubber Insulators. In: 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), NOV 16-18, 2017, Indian Inst Technol Ropar, Rupnagar, INDIA, pp. 151-155.

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Abstract

Polymeric insulators arc used for overhead transmission line insulation due to various advantages, but long term performance and estimation of service life is still a challenge. During service life, these insulators are stressed under different mechanical, electrical, environmental stresses etc. and over a period, they lose their insulation properties. In the present work, an attempt is made to study the effect of multiple stresses like thermal, ultra violet (UV) radiation, humidity along with electrical stress on the long term performance. These stresses are applied in a specific cyclic manner to closely meet the real climatic service conditions. During experimentation leakage current is monitored regularly. Physicochemical analysis is performed using Scanning Electron Microscope (SEM) and Energy Dispersive X-ray Analysis (EDAX) to find elemental composition changes during experiment and Thermo-Gravimetric Analysis (TGA) is used to analyze the thermal stability. Fourier transform infrared (FTIR) spectroscopy is performed to detect chemical changes and surface hydroxylation in aged insulating samples. Further, the effect of multiple stresses on tensile strength is observed and reported.

Item Type:	Conference Proceedings
Publisher:	IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Additional Information:	Copy right for the article belong toIEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	04 Apr 2018 18:51
Last Modified:	04 Apr 2018 18:51
URI:	http://eprints.iisc.ac.in/id/eprint/59478

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