Current interruption characteristics of C4F7N/CO2 mixture in a load switch

Arc decomposition behavior of C 4 F 7 N/Air gas mixture and biosafety evaluation of its by‐products

“…In this study, therefore, C 4 F 7 N was mixed with dry air to explore the breaking performance and in particular the biosafety of decomposition products. It has been reported that a higher content of C 4 F 7 N in the gas mixture could significantly improve the breaking performance [15]. Considering that the absolute pressure of the load switch arc extinguishing chamber is 0.13 MPa, a 57% C 4 F 7 N/43% air gas mixture was therefore used as the arc extinguishing medium to meet the non-liquefaction working temperature of −15°C in engineering applications.…”

“…For example, Luo et al. explored the current breaking characteristics of C 4 F 7 N/CO 2 in a load switch and found that the energy dissipation rate of SF 6 was higher than that of C 4 F 7 N. The breaking performance was improved when a gas mixture with a higher content of C 4 F 7 N was used [15]. Li et al.…”

“…However, few studies on its breaking performance have been reported. For example, Luo et al explored the current breaking characteristics of C 4 F 7 N/CO 2 in a load switch and found that the energy dissipation rate of SF 6 was higher than that of C 4 F 7 N. The breaking performance was improved when a gas mixture with a higher content of C 4 F 7 N was used [15]. Li et al studied the influence of gas blowing on the arc extinguishing performance of C 4 F 7 N/CO 2 and found that its thermal breaking capacity could reach more than 90% of SF 6 in arc pulling and blowing experiments [16].…”