摘要
本文首先通过研究电弧闪络的危害及其计算方法,归纳了3种算法的区别和适用条件;然后根据Lee氏模型和电弧闪络的机理对算法进行了验证,指出了算法潜在的漏洞,并据此提出了一套考虑算法综合选取的危害计算流程;最后,本文依照此计算流程,结合具体的算例对电气设备中电弧闪络的危害性进行评估,验证了危害计算流程的可行性。
This paper summarizes the difference and applicable conditions of three arc flash hazard calculation method.Next,it points out the potential loopholes of methods and put forward a hazard calculation process after verifying their reasonability according to Lee’s model and mechanism of arc flash.Then,an example is given to evaluate the arc flash hazard occurring in an electrical device and verify the feasibility of the calculation process.
作者
方景辉
丁一岷
孙一凡
高希骏
魏玲
Fang Jinghui;Ding Yimin;Sun Yifan;Gao Xijun;Wei Ling(Jiaxing Hengchuang Electric Power Design&Research Institute Co.,Ltd,Jiaxing,Zhejiang 314033;State Grid Jiaxing Electric Power Supply Company,Jiaxing,Zhejiang 314033;Beijing Smart China Energy Technology Development Co.,Ltd,Beijing 100176)
出处
《电气技术》
2020年第8期52-57,共6页
Electrical Engineering
关键词
弧闪危害
电弧电流
事故能量
弧闪保护边界
arc flash hazard
arcing current
incident energy
flash protection boundary
