Overview of IoT-based Protection Scheme in a Gas Insulated Transmission Line

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Abstract

Gas-insulated transmission lines (GITL) are vital for modern power systems, ensuring efficient and reliable electrical transmission. Sulfur hexafluoride (SF6) and Nitrogen is commonly used as an insulating gas Mixture in these systems to prevent electrical breakdown. However, faults and SF6 degradation can impact GIL performance. This paper explores various faults like partial discharge, gas leakage, and SF6 property degradation in GILs. A comprehensive monitoring system with IoT principles, state-of-the-art sensors, and communication tech is proposed for real-time data acquisition and analysis. The IoT-based protection scheme employs strategically placed sensors to monitor gas pressure, temperature, and composition, using advanced analytics for early fault detection. This system provides timely information for prompt decision-making and preventive maintenance, enhancing fault detection and enabling remote monitoring and control, ultimately improving the overall reliability and longevity of GIL systems.

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Keywords

Gas insulated transmission line Internet of things Insulating gas Smart protection scheme