An Improved Arc Trigger for High Voltage High Current Hybrid Current Limiting Fuse
With conventional high voltage current limiting fuse,the rated current is usually below 200 A.The rated current of the state of the art arc triggering hybrid current limiting fuse is only 600 A,with its interrupting capability being 25 kA,and still cant meet the requirements of modem industrial application.With the arc triggering hybrid current limiting fuses,the major obstacle to higher rated current and interrupting capability lies in the long operation time of the arc trigger.Increasing the current density of arc trigger notches can effectively improve the operation speed of the trigger.Simulation and parameter optimization of the arc trigger are conducted by using ANSYS 11.0 to attain the optimal fuse element structure.In this study,the notch current density of the arc trigger was as high as 3300 A/mm2,and the trigger can be used in the hybrid current limiting fuse of rated 35 kV,2 kA and 40 kA interrupting capability.
hybrid current limiting fuse, arc trigger, fault current limiter, current density
Bo Chen Jinwu Zhuang Chao Zhang
College of Electrical and Information Engineering,Naval University of Engineering.Wuhan, China
国际会议
沈阳
英文
338-343
2012-05-25（万方平台首次上网日期，不代表论文的发表时间）