Comparison of two methods to adjust the current setting value of the magnetic release in DC high speed circuit breaker
Adjustability is an important function of the DC high speed Circuit Breaker magnetic release.Based on 3-D finite element method, the static characteristics of the magnetic release were obtained.The reactive force of the disc spring group was calculated by a simplified equation.Then the dynamic characteristics of the magnetic release were simulated with multi-dynamics method.After that, two efficient methods to adjust the current setting value (i.e.regulating the preload length of reaction spring and regulating the displacement of the core) were compared in the aspects of range, scale division value and linearity.At last, to obtain a better adjustability, emphasis is placed on the combination of these two adjustment methods.
Adjustability Current setting value Magnetic release DC high speed circuit breaker
Jianyu QU Qian WANG Xingwen LI Degui CHEN
State Key Laboratory of Electrical Insulation and Power Equipment,Xi”an Jiaotong University,Xi”an,71 School of Sciences,Xi”an University of Technology,Xi”an,Shaanxi,710048,China
国内会议
武汉
英文
175-178
2013-11-16（万方平台首次上网日期，不代表论文的发表时间）