Exploring C4F7N/O2/N2 Mixtures for Eco-Friendly Gas Insulation

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This presentation explores the transition towards eco-friendly alternatives in high-voltage gas insulated equipment (HV-GIE), focusing on C4F7N as a sustainable substitute for SF6. With objectives set to examine AC breakdown strength and analyse by-products, the study highlights improved insulation performance with a C4F7N-based gas mixture containing 4–10% oxygen. The methodology includes high-voltage AC insulation setups and assessments of breakdown voltage and by-products. The findings...