TY - GEN
T1 - Properties of intermediate frequency vacuum arcunder axial magnetic field
AU - Wang, Jing
AU - Wu, Jianwen
AU - Zhu, Liying
PY - 2008
Y1 - 2008
N2 - This paper presents the study of intermediate frequency vacuum arc under axial magnetic field (A M F). Arc voltage noise at the first current half-cycle is unconspicuous even if the current is not interrupted successfully,it can be attributed to the application of a sufficient strong A M F provided by the current in a short vacuum gap.The influence of current frequency on peak arc voltage and the rate of rise of arc voltage are investigated. Interrupting capacity of CuCr50 cup-type vacuum interrupter (VI) with A M F is examined, the current interruption limit is inversely proportional to frequency from 400Hz-800Hz, it is in agreem ent with the experimental and theoretical results achieved by other scholars. Eddy current field of CuCr50 cup-type VI with A M F is studied by finite-element method based on a simplified axial symmetric model, the results shows the phase shift angleincreases conspicuouslywith the increase of current frequency, and besides the rate of change of current (di/dt) when current passeszero, phase shift angle also influences the interm ediate frequency current interrupting capacity of VI.
AB - This paper presents the study of intermediate frequency vacuum arc under axial magnetic field (A M F). Arc voltage noise at the first current half-cycle is unconspicuous even if the current is not interrupted successfully,it can be attributed to the application of a sufficient strong A M F provided by the current in a short vacuum gap.The influence of current frequency on peak arc voltage and the rate of rise of arc voltage are investigated. Interrupting capacity of CuCr50 cup-type vacuum interrupter (VI) with A M F is examined, the current interruption limit is inversely proportional to frequency from 400Hz-800Hz, it is in agreem ent with the experimental and theoretical results achieved by other scholars. Eddy current field of CuCr50 cup-type VI with A M F is studied by finite-element method based on a simplified axial symmetric model, the results shows the phase shift angleincreases conspicuouslywith the increase of current frequency, and besides the rate of change of current (di/dt) when current passeszero, phase shift angle also influences the interm ediate frequency current interrupting capacity of VI.
UR - https://www.scopus.com/pages/publications/57849126032
U2 - 10.1109/DEIV.2008.4676809
DO - 10.1109/DEIV.2008.4676809
M3 - 会议稿件
AN - SCOPUS:57849126032
SN - 9789737553829
T3 - Proceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
SP - 385
EP - 388
BT - ISDEIV 2008 - Proceedings of the 23rd International Symposium on Discharges and Electrical Insulation in Vacuum
T2 - 23rd International Symposium on Discharges and Electrical Insulation in Vacuum, 23rd ISDEIV
Y2 - 15 September 2008 through 19 September 2008
ER -