Plasma Chemistry and Plasma Processing ( IF 3.6 ) Pub Date : 2022-05-27 , DOI: 10.1007/s11090-022-10252-4 Xiaonan Wang, Xiaohua Wang, Huan Yuan, Aijun Yang, Dingxin Liu, Qingqing Gao, Mingzhe Rong
As a potential alternative to SF gas, C5F10O has excellent insulation performance. The researches on its insulation performance and decomposition mechanism are very significant for promotion and application. In this paper, power frequency breakdown and lightning impulse test were implemented on C5F10O/CO2 gas mixture under a slightly uneven field. It was found that the insulation performance of C5F10O/CO2 gas mixture at 0.7 MPa could be comparable to SF6 at 0.4 MPa. After detecting the discharge products after pulse spark discharge through electron attachment mass spectrometry, it was found that the products mainly came from the decomposition of C5F10O. The addition of CO2 inhibited the formation of C4F10 and C3F4O, and promoted the formation of CF4O and CF4. The yields of C3F6, C4F10, C3F8, CF4O, C4F10 and C2F2 were positively correlated with the content of C5F10O. The densities of C4F10, C3F4O, C3F8O, CF4O, CF4 and C4F10 increased with the number of discharge pulses, which could be as the characteristic gas of the discharge degree. Although many decomposition products were detected, their yields were very low. These results suggest the promising applicability of C5F10O/CO2 gas mixture for replacing SF6.
中文翻译:
C5F10O/CO2气体混合物的绝缘性能和分解特性研究
作为SF气体的潜在替代品,C 5 F 10 O具有优异的绝缘性能。对其绝缘性能和分解机理的研究对于推广和应用具有十分重要的意义。本文对C 5 F 10 O/CO 2气体混合物在轻微不均匀场下进行工频击穿和雷电冲击试验。发现C 5 F 10 O/CO 2气体混合物在0.7 MPa下的绝缘性能可与SF 6相媲美。在 0.4 兆帕。通过电子附着质谱检测脉冲火花放电后的放电产物,发现产物主要来自C 5 F 10 O的分解,CO 2的加入抑制了C 4 F 10和C 3 F的生成。 4 O,促进了CF 4 O 和CF 4的生成。C 3 F 6、C 4 F 10、C 3 F 8、CF 4 O、C 4 F 10和C 2的产率F 2与C 5 F 10 O的含量呈正相关。C 4 F 10、C 3 F 4 O、C 3 F 8 O、CF 4 O、CF 4和C 4 F 10的密度随着数量的增加而增加。放电脉冲,可以作为放电度的特征气体。尽管检测到许多分解产物,但它们的产率非常低。这些结果表明C 5 F 10 O/CO 2气体混合物在替代SF 6方面具有广阔的应用前景。