王凯, 周然, 张博雅, 李兴文, 曹闽川, 邓竣巍, 唐念. 环境友好型HFO-1336mzz(E)混合气体在负荷开关中的灭弧性能仿真研究[J]. 高电压技术, 2023, 49(3): 1038-1045. DOI: 10.13336/j.1003-6520.hve.20220847
引用本文: 王凯, 周然, 张博雅, 李兴文, 曹闽川, 邓竣巍, 唐念. 环境友好型HFO-1336mzz(E)混合气体在负荷开关中的灭弧性能仿真研究[J]. 高电压技术, 2023, 49(3): 1038-1045. DOI: 10.13336/j.1003-6520.hve.20220847
WANG Kai, ZHOU Ran, ZHANG Boya, LI Xingwen, CAO Minchuan, DENG Junwei, TANG Nian. Simulation Study on the Arc Extinguishing Performance of Eco-friendly HFO-1336mzz(E) Mixture Gas in a Load Switch[J]. High Voltage Engineering, 2023, 49(3): 1038-1045. DOI: 10.13336/j.1003-6520.hve.20220847
Citation: WANG Kai, ZHOU Ran, ZHANG Boya, LI Xingwen, CAO Minchuan, DENG Junwei, TANG Nian. Simulation Study on the Arc Extinguishing Performance of Eco-friendly HFO-1336mzz(E) Mixture Gas in a Load Switch[J]. High Voltage Engineering, 2023, 49(3): 1038-1045. DOI: 10.13336/j.1003-6520.hve.20220847

环境友好型HFO-1336mzz(E)混合气体在负荷开关中的灭弧性能仿真研究

Simulation Study on the Arc Extinguishing Performance of Eco-friendly HFO-1336mzz(E) Mixture Gas in a Load Switch

  • 摘要: 为了减少SF6在电力设备中使用量,研究了环境友好型SF6替代气体HFO-1336mzz(E)气体作为灭弧介质在12 kV负荷开关中的应用可行性,建立了2维磁流体动力学仿真模型,在压气式负荷开关结构下进行负荷电流开断过程仿真,对比了0.12 MPa下30%HFO-1336mzz(E)/CO2、30%HFO-1336mzz(E)/干燥空气混合气体与0.1 MPa下SF6气体燃弧过程中的电弧电压、灭弧室内温度场、气流场分布以及弧后热击穿特性。研究表明,HFO-1336mzz(E)混合气体熄弧尖峰略大于SF6,且电弧在轴向上扩散速率大于SF6。电流快过零时,混合气体的电弧温度比SF6低1400 K。通过弧后热击穿评估,30%HFO-1336mzz(E)/CO2、30%HFO-1336mzz(E)/干燥空气混合气体的热开断能力分别可以达到SF6的95%和96%。研究结果可为HFO-1336mzz(E)混合气体作为灭弧介质在中压开关设备中的应用提供参考。

     

    Abstract: In order to reduce the use of SF6 in power equipment, we investigated the application feasibility of eco-friendly SF6-alternative gas HFO-1336mzz(E) as the arc extinguishing medium in a 12 kV load switch. We established a two-dimensional magnetohydrodynamic simulation model and calculated the current interruption process in the puffer-type load switch. Moreover, we studied and compared the arc voltage, temperature field, airflow field distribution in the arc extinguishing chamber during the arcing period and the thermal interruption capability during the post-arc period for the 30%HFO-1336mzz(E)/CO2 (0.12 MPa), 30%HFO-1336mzz(E)/air (0.1 MPa) and SF6 (0.1 MPa). The studies show that the arc quenching peak of HFO-1336mzz(E) gas mixtures is slightly greater than that of SF6, and the arc diffusion in the axial direction is greater than that of SF6. When the current nearly exceeds zero, the arc temperature of HFO-1336mzz(E) gas mixtures is 1400 K lower than that of SF6. By analysis, the thermal interruption capability of 30%HFO-1336mzz(E)/CO2 and 30%HFO-1336mzz(E)/air gas mixture can reach 95% and 96% that of SF6, respectively. The results can provide reference for HFO-1336mzz(E) gas mixtures as arc extinguishing medium in medium voltage switchgears.

     

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