TY - GEN
T1 - Comparison of Decomposition By-products of C4F7N/CO2 Mixed Gas under AC Discharge Breakdown and Partial Discharge
AU - Zhou, Yongyan
AU - Li, Chenwei
AU - Tang, Nian
AU - Zhang, Boya
AU - Li, Li
AU - Li, Xingwen
AU - Li, Xiaodian
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - In recent years, C4F7N has been highly concerned due to its excellent dielectric performance and arcquenching ability. As a potential alternative to SF6, the decomposition characteristics of C4F7N will directly affect its application prospects. However, there are few studies on the decomposition characteristics of C4F7N mixed gas. Therefore, we conducted AC discharge breakdown experiment and partial discharge experiment on C4F7N-CO2 mixed gas, and analyzed the gas decomposition by-products of C4F7N-CO2 mixed gas qualitatively and quantitatively by using gas chromatography-mass spectrometry (GC/MS). The results show that the major decomposition by-products under AC discharge breakdown are CO, CF4, C2F4, C2F6, C3F8, CF3-CN, C3F6, C4F6, C4F10, C2F5-CN, C2N2, HCN, C2F3CN. Under partial discharge, the major decomposition byproducts are CO, CF4, C3F8, CF3-CN, C3F6, C4F10, C2F5-CN, C2N2, HCN, C2F3-CN. Compared with the partial discharge process, AC discharge breakdown produces more types of decomposition by-products. Besides, AC breakdown tends to produce smaller molecular by-products, while partial discharge tends to produce larger molecular by-products.
AB - In recent years, C4F7N has been highly concerned due to its excellent dielectric performance and arcquenching ability. As a potential alternative to SF6, the decomposition characteristics of C4F7N will directly affect its application prospects. However, there are few studies on the decomposition characteristics of C4F7N mixed gas. Therefore, we conducted AC discharge breakdown experiment and partial discharge experiment on C4F7N-CO2 mixed gas, and analyzed the gas decomposition by-products of C4F7N-CO2 mixed gas qualitatively and quantitatively by using gas chromatography-mass spectrometry (GC/MS). The results show that the major decomposition by-products under AC discharge breakdown are CO, CF4, C2F4, C2F6, C3F8, CF3-CN, C3F6, C4F6, C4F10, C2F5-CN, C2N2, HCN, C2F3CN. Under partial discharge, the major decomposition byproducts are CO, CF4, C3F8, CF3-CN, C3F6, C4F10, C2F5-CN, C2N2, HCN, C2F3-CN. Compared with the partial discharge process, AC discharge breakdown produces more types of decomposition by-products. Besides, AC breakdown tends to produce smaller molecular by-products, while partial discharge tends to produce larger molecular by-products.
KW - AC discharge breakdown
KW - CFN
KW - SF alternative
KW - partial discharge
UR - https://www.scopus.com/pages/publications/85077801657
U2 - 10.1109/ICEPE-ST.2019.8928835
DO - 10.1109/ICEPE-ST.2019.8928835
M3 - 会议稿件
AN - SCOPUS:85077801657
T3 - Proceedings of the 2019 5th International Conference on Electric Power Equipment - Switching Technology: Frontiers of Switching Technology for a Future Sustainable Power System, ICEPE-ST 2019
SP - 82
EP - 85
BT - Proceedings of the 2019 5th International Conference on Electric Power Equipment - Switching Technology
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th International Conference on Electric Power Equipment - Switching Technology, ICEPE-ST 2019
Y2 - 13 October 2019 through 16 October 2019
ER -
