1 Department of Electrical and Electronics Engineering, Government Polytechnic, Belagavi, Karnataka, India
2 Department of Electrical and Electronics Engineering, D R R Government Polytechnic, Davanagere, Karnataka, India
Review Article
World Journal of Advanced Research and Reviews, 2021, 10(02), 271-281
Received on 04 April 2021; revised on 18 May 2021; accepted on 22 May 2021
Gas-Insulated Substations (GIS) have emerged as a critical solution for efficient and reliable power distribution, particularly in urban environments where space constraints and environmental concerns limit the deployment of traditional Air-Insulated Substations (AIS). GIS technology leverages compact, high-voltage components encapsulated in gas-insulated enclosures, providing enhanced operational efficiency, safety, and reliability. This paper explores the technological advancements in GIS, including improvements in insulation materials, monitoring and diagnostic systems, and sustainable designs aimed at reducing greenhouse gas emissions. A comparative analysis of GIS and AIS is conducted, evaluating key factors such as space optimization, installation and maintenance costs, reliability under extreme environmental conditions, and overall environmental impact. The paper also highlights the integration of digital technologies, such as IoT-based condition monitoring, predictive maintenance algorithms, and AI-driven fault detection, which enhance the performance and longevity of GIS installations. Furthermore, the study addresses challenges associated with GIS technology, including the high initial investment, potential risks related to SF₆ gas emissions, and strategies for developing eco-friendly alternatives. Emerging trends, such as the adoption of SF₆-free insulation solutions, advancements in compact modular designs, and hybrid GIS-AIS configurations, are explored to assess the future viability of GIS in modern power networks. By analyzing recent research developments, case studies, and industry best practices, this paper provides insights into the evolving landscape of gas-insulated substations, emphasizing their role in ensuring sustainable, resilient, and efficient power distribution for the growing energy demands of urban and industrial applications.
Gas-Insulated Substation (GIS); Air-Insulated Substation (AIS); SF₆ Gas; Urban Power Distribution; Compact Substations; High Reliability; Smart Monitoring; Predictive Maintenance
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Komala M H and Prahallada M B. Development of gas-insulated substations for urban areas. World Journal of Advanced Research and Reviews, 2021, 10(2), 271-281. Article DOI: https://doi.org/10.30574/wjarr.2021.10.2.0202