TY - JOUR
T1 - Comparative study of the interruption capability of N2, CO2 and SF6 nozzle arcs
AU - Guo, Yujing
AU - Zhang, Hao
AU - Zhang, Quan
AU - Yao, Yongqi
AU - Yan, Jiudun
N1 - Publisher Copyright:
© 2016, Xi'an High Voltage Apparatus Research Institute Co., Ltd. All right reserved.
PY - 2016/12/16
Y1 - 2016/12/16
N2 - The dynamic behavior and energy exchange mechanisms in the quenching process of three transient nozzle arcs burning in N2, CO2 and SF6 have been investigated. The turbulent arc model is first calibrated against available experimental results and its applicability and accuracy verified by comparison with the latter. Arcs burning in the three gases are then modelled and energy balance analysis carried out to identify the dominant energy exchange mechanism in each of the three gas arcs. Focusing on the inflection points in the radial temperature distribution curves, the different interruption capabilities of the nozzle arcs are traced back to the differences in gas material properties. A link between the interruption capability of a gas and its material properties is finally established.
AB - The dynamic behavior and energy exchange mechanisms in the quenching process of three transient nozzle arcs burning in N2, CO2 and SF6 have been investigated. The turbulent arc model is first calibrated against available experimental results and its applicability and accuracy verified by comparison with the latter. Arcs burning in the three gases are then modelled and energy balance analysis carried out to identify the dominant energy exchange mechanism in each of the three gas arcs. Focusing on the inflection points in the radial temperature distribution curves, the different interruption capabilities of the nozzle arcs are traced back to the differences in gas material properties. A link between the interruption capability of a gas and its material properties is finally established.
KW - Energy exchange process
KW - Interruption capability
KW - Material properties
KW - SF replacement gases
KW - Transient arcs
UR - http://www.scopus.com/inward/record.url?scp=85008178915&partnerID=8YFLogxK
U2 - 10.13296/j.1001-1609.hva.2016.12.005
DO - 10.13296/j.1001-1609.hva.2016.12.005
M3 - Article
AN - SCOPUS:85008178915
SN - 1001-1609
VL - 52
SP - 31
EP - 40
JO - Gaoya Dianqi/High Voltage Apparatus
JF - Gaoya Dianqi/High Voltage Apparatus
IS - 12
ER -