Dual Normal Distribution of Arc Discharge Time for Inductive Intrinsically Safe Circuits
Meng Qinghai1, 2, Wang Jinji1, 2
1. Inverter Technologies Engineering Research Center of Beijing North China University of Technology Beijing 100144 China; 2. Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100144 China
Abstract：Arc discharge time of intrinsically safe circuits obeys normal distribution. However, tests revealed that there are two different normal distribution sketches at different positions. Separate track of tungsten wires in cadmium groove was derived, and the peak value of breaking time of tungsten wires was obtained according to its actual separate velocity. The calculation results account for that the larger time distribution is corresponding to the breaking with cadmium edge while the smaller time distribution is corresponding to that with cadmium groove. At last the criterion of arc discharge time distribution was established.
孟庆海, 王进己. 本质安全电感电路电弧放电时间双正态分布[J]. 电工技术学报, 2017, 32(2): 119-124.
Meng Qinghai, Wang Jinji. Dual Normal Distribution of Arc Discharge Time for Inductive Intrinsically Safe Circuits. Transactions of China Electrotechnical Society, 2017, 32(2): 119-124.
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2017, Vol. 32 
