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August 17, 2025International Journal of Research and Innovation in Applied Science

Emerging Eco-Friendly Alternatives to SF₆ for High Voltage Insulation: A Review

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Authors

SKS. P. KruthiRDRavi Prasad D.MRM. Ramesh

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Overview

This review evaluates insulation effectiveness of HFC-227ea and HFC-125 compared to SF₆, suggesting greener options for high voltage systems.

Key Points

  • HFC-227ea and HFC-125 exhibit good insulation properties, achieving dielectric strength between 0.5 and 0.7 times that of sulphur hexafluoride.
  • These hydrofluorocarbons have significantly lower global warming potentials, at 2900 and 3500 respectively, compared to sulphur hexafluoride.
  • The review comprehensively assesses thermal stability and environmental impacts of alternative gases for sustainable high voltage applications.
  • These gases may not completely replace sulphur hexafluoride but serve as promising options under controlled conditions in medium-voltage systems.

Cite This Study

Kruthi et al. (2025) studied this question.

synapsesocial.com/papers/68a36a4f0a429f797332f05ahttps://doi.org/10.51584/ijrias.2025.100700082
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