杯状纵磁触头间隙中纵向磁场滞后时间的空间分布研究杯状纵磁触头间隙中纵向磁场滞后时间的空间分布研究 刘志远，王仲奕，王季梅，修士新 西安交通大学电气工程学院，陕西 西安 710049 RESEARCH ON SPATIAL DISTRIBUTION OF PHASE SHIFT TIME IN GAP OF AXIAL MAGNETIC FIELD VACUUM INTERRUPTER WITH CUP-TYPE ELECTRODE LIU Zhi-yuan, WANG Zhong-yi, WANG Ji-mei, XIU Shi-xin (Dept. Of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China) ABSTRACT: Radial distribution and axial distribution of phase shift time between axial magnetic flux density and source current in gap of axial magnetic field vacuum interrupter with cup-shape electrode is studied. In this paper the electrode is simplified as an axial symmetry model and its harmonic field is analyzed by finite element method. It is showed that phase shift time between axial magnetic flux density and source current reduces along radius. The phase shi……