Development of Partial Discharge Signal in Ester Oil Impregnated Paper
M. Kalyanasundari1, M. Ravindran2, R. V. Maheswari3, B. Vigneshwaran4

1M. Kalyanasundari*, Department of Electrical and Electronics Engineering Unnamalai Institute of Technology, Kovilpatti, India.
2Dr. M. Ravindran, Associate Professor (Senior Grade), Department of EEE, National Engineering College, Kovilpatti, India.
3Dr. R. V. Maheswari, Professor, Department of EEE, National Engineering College, Kovilpatti, India.
4Dr. B. Vigneshwaran, Assistant Professor (Senior Grade) Department of EEE, National Engineering College. Kovilpatti, India.
Manuscript received on January 10, 2020. | Revised Manuscript received on January 29, 2020. | Manuscript published on February 10, 2020. | PP: 2516-2522 | Volume-9 Issue-4, February 2020. | Retrieval Number: D1898029420/2020©BEIESP | DOI: 10.35940/ijitee.D1898.029420
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Abstract: Power transformer is the most exorbitant and controversially the most essential equipment. Insulation abortion in transformer can cause stretched term interruption to supply and loss of revenue and the important maintenance procedure. The power transformer consists of organic insulation like Mineral oil, pressboard and paper. In impecunious of bio- degradability and availability, ester oil is replaced by Mineral oil. The partial discharge is a tool for evaluate the insulation atrophy of dielectric materials. In this paper the results of a laboratory based experimental investigation of partial discharge activity in oil – impregnated paper. To guesstimate the statistical parameter for different electrode configuration like different configuration under open air gap condition. 
Keywords: Statistical Parameter (Skewness, Kurtosis), PD, Natural Ester Oil and Mineral Oil, Needle, Plane, Rod, Plane, Sphere, Plane Curvature, Number of Discharge, AC
Scope of the Article: Petroleum and Mineral Resources Engineering