TY - GEN
T1 - Modelling of the interruption process in SF6 high voltage circuit breaker and preliminary study of the arc characteristics for different gases
AU - Zhang, Jian
AU - Jia, Shenli
AU - Li, Xingwen
AU - Liu, Pengwei
AU - Shi, Zongqin
AU - Wang, Lijun
PY - 2009
Y1 - 2009
N2 - SF6 is exclusively used as insulation and quenching medium for high voltage circuit breaker because of its high insulation strength and high interruption capability of fault current at present. Therefore it is very necessary to investigate SF6 arc interruption process in high voltage circuit breaker. On the other hand, its greenhouse effect has stimulated the studies for searching environmentally friendly substitute gas. In the paper, a 2-D arc magnetohydrodynamic (MHD) model is presented to one puffer type arc quenching chamber in high voltage circuit breaker firstly. Then, from the view of the difference of medium properties including thermodynamic properties, transport coefficients and radiation characteristic, the arc behavior of SF 6, N2 and CO2 gases is simulated based on the model, respectively, taking into account the influence of arc current, chamber pressure. From the preliminary study, good agreement has been achieved with the experimental result, and the validity of the proposed arc model is partially verified. In addition, the effects of medium properties on arc interruption parameters, such as arc radius, arc temperature and arc voltage, are also presented.
AB - SF6 is exclusively used as insulation and quenching medium for high voltage circuit breaker because of its high insulation strength and high interruption capability of fault current at present. Therefore it is very necessary to investigate SF6 arc interruption process in high voltage circuit breaker. On the other hand, its greenhouse effect has stimulated the studies for searching environmentally friendly substitute gas. In the paper, a 2-D arc magnetohydrodynamic (MHD) model is presented to one puffer type arc quenching chamber in high voltage circuit breaker firstly. Then, from the view of the difference of medium properties including thermodynamic properties, transport coefficients and radiation characteristic, the arc behavior of SF 6, N2 and CO2 gases is simulated based on the model, respectively, taking into account the influence of arc current, chamber pressure. From the preliminary study, good agreement has been achieved with the experimental result, and the validity of the proposed arc model is partially verified. In addition, the effects of medium properties on arc interruption parameters, such as arc radius, arc temperature and arc voltage, are also presented.
KW - Arc behavior
KW - Arc model
KW - Circuit breaker
KW - Interruption process
KW - Quenching medium
UR - https://www.scopus.com/pages/publications/73649104065
U2 - 10.1109/HOLM.2009.5284394
DO - 10.1109/HOLM.2009.5284394
M3 - 会议稿件
AN - SCOPUS:73649104065
SN - 9781424436132
T3 - Electrical Contacts, Proceedings of the Annual Holm Conference on Electrical Contacts
SP - 237
EP - 242
BT - Proceedings of the 55th IEEE Holm Conference on Electrical Contacts, HOLM 2009
T2 - 55th IEEE Holm Conference on Electrical Contacts, HOLM 2009
Y2 - 14 September 2009 through 16 September 2009
ER -