Dielectric performance of HFO-gas mixtures

Decomposition mechanism of environmentally friendly insulating medium HFO1234zeE/N 2 gas mixture under partial discharge

“…Hence, research on the insulation performance of HFO gas mixtures was carried out. Yao et al conducted experiments and obtained the corona initial discharge voltages and breakdown voltages of HFO gas mixtures [21]. Chen et al studied the insulation characteristics of HFO/N 2 gas mixtures with different mixing ratios, and the results showed that when the pressure was 0.3 MPa, the insulation strength of a 40% HFO/60% N 2 gas mixture was 0.78-0.94 times that of a 20% SF 6 /80% N 2 gas mixture under a slightly non-uniform electric field and was 0.90-1.35 times that of a 20% SF 6 /80% N 2 gas mixture under an extremely non-uniform electric field, so the feasibility of replacing SF 6 with a HFO/N 2 gas mixture was verified [22].…”

“…Yao et al. conducted experiments and obtained the corona initial discharge voltages and breakdown voltages of HFO gas mixtures [21]. Chen et al.…”