ZHU Liying1,， WU Jianwen2,*
Abstract： Eddy current will be generated when the alternating current through the transverse magnetic field(TMF) contatcs in the vacuum interrupter. As frequency increases, the eddy current effect is more obviously. The cup-type TMF contacts were simulated for the eddy current in this paper. The results show that the changes on the structure have effect on the eddy current. The results also show that the transverse magnetic field vacuum interrupter has higher and more strongly eddy current effect with the higher frequency.When the contact diameter, open distance, slotted angle, the coil thickness, the highness of coil is constant, the transerve magnetic field strength were significantly increasing as the frequency increases when the current is zero .
Keywords： vacuum arc; eddy current; frequency; TMF