The impact of Particle on FGM insulator in a single phase gas insulated busduct on electric field stress

A. Nagaraju; N. Ravi Shankar Reddy; R. Kiranmayi

doi:10.6180/jase.202210_25(5).0014

The impact of Particle on FGM insulator in a single phase gas insulated busduct on electric field stress

A. Nagaraju This email address is being protected from spambots. You need JavaScript enabled to view it.¹, N. Ravi Shankar Reddy², and R. Kiranmayi³

¹Research Scholar Department of EEE JNT University Anantapur Anantapuramu & Assistant Professor in EECE Dept., GITAM School of Technology, Bengaluru, India
²Associate Professor Department of EEE G Pulla Reddy Engineering College Kurnool, A.P, India
³Professor & Director, Foreign Affairs & Alumni Matters JNT University Anantapur Anantapuramu, A.P, India

Received: August 4, 2021
Accepted: November 26, 2021
Publication Date: January 17, 2022

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202210_25(5).0014

ABSTRACT

In the present day, technology, economics, and environmental sustainability have all combined to produce some very significant design problems for Gas-Insulated Substations (GIS). Substations that use gas-insulated switchgear must maximise their return on investment while dealing with these issues. This necessitates lowering total cost, enhancing reliability, maintaining operational flexibility, and regulating their operations environmental impact. Recently, the insulation failures of the Gas Insulated Busduct (GIB) have been observed due to several defects caused during the switching and manufacturing process, such as delamination, protrusion, depression, gap, etc. These defects make a significant impact on the surface of the insulator and hence de-energise the Gas Insulated busduct device, resulting in a huge economic loss. In this paper, the effect of a free particle is analysed on a disc type Functionally Graded Material (FGM) insulator for a single-phase GIB at Triple Junction. The developed electric stress is reduced by inserting metal inserts at the end of the enclosure. The new technique called doping of FGM materials with different permittivity values is spatially distributed with many filler materials to achieve uniform electrical field stress. The simulation is conducted at various voltages and for different gradings of FGM for the designed insulator. The results obtained are presented and analysed showing the effectiveness of the proposed insulator.

Keywords: Gas insulated busduct, FGM, Electric stress, Insulator, Triple Junction, Metal Insert

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