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IJSDR
INTERNATIONAL JOURNAL OF SCIENTIFIC DEVELOPMENT AND RESEARCH
International Peer Reviewed & Refereed Journals, Open Access Journal
ISSN Approved Journal No: 2455-2631 | Impact factor: 8.15 | ESTD Year: 2016
open access , Peer-reviewed, and Refereed Journals, Impact factor 8.15

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Paper Title: Risk assessment of pollution on a 66kV composite insulator using ANSYS
Authors Name: Ms. N H M Netravati , Mrs. Sunitha N.S , Dr. Shivakumara Aradhya R.S. , Dr. K.N Ravi
Unique Id: IJSDR1611002
Published In: Volume 1 Issue 11, November-2016
Abstract: In practice, insulators are subjected to various atmospheric conditions and they affect surface characteristics of the composite insulators. One of the major causes of insulation failure in high voltage power lines is leakage current on polluted insulator’s surface. In order to study the impact of contamination level on electric field distribution of composite insulator, simulations had been implemented using ANSYS. The project uses a 66kV composite insulator manufactured by BHEL-EPD Bangalore. The insulator is simulated using the finite element technique. The electric field and potential distribution along the insulator surface for different pollution severities like light, medium, heavy and very heavy pollution are investigated. These different pollution severities are achieved by varying the layer conductivity uniformly on the insulator surface. From the simulation results, it can be seen that electric field strength is excessive at the junction of metal end fittings and insulator housing and minimal along the sheds of the insulator. Also the electric field stress increases as the pollution severity increases. Also the simulation is carried out to study the effect of dry band formation at different height along the insulator surface. Results exhibit that the electric field stress reduces as the position of dry band is varied from high voltage (HV) end to ground end indicating that for dry band close to the HV end will have higher probability of flashover. The results obtained may help designers in industry and researchers for assessing outdoor polymeric insulators and thereby selection of insulators for various contaminated environments.
Keywords: leakage current, pollution layer, electric field stress, electric potential, dry band, pollution severity.
Cite Article: "Risk assessment of pollution on a 66kV composite insulator using ANSYS ", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.1, Issue 11, page no.6 - 12, November-2016, Available :http://www.ijsdr.org/papers/IJSDR1611002.pdf
Downloads: 000336257
Publication Details: Published Paper ID: IJSDR1611002
Registration ID:160912
Published In: Volume 1 Issue 11, November-2016
DOI (Digital Object Identifier):
Page No: 6 - 12
Publisher: IJSDR | www.ijsdr.org
ISSN Number: 2455-2631

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