Analysis of low energy arc discharge characteristics based on dynamic V-A characteristics model

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2006,（2）
• 页码范围: 91-93
• 页数: 3页
• 语种: 英文

摘要

Low energy arc discharge characteristics was analyzed based on dynamic V-A characteristics model. It draws conclusions that discharge time relates to the source voltage and the product of inductance and stable current, discharge time will increase when the source voltage increases; current reduce rate is in inverse proportion to the value of inductance; arc resistance when the arc occurs is the ratio of minimum arcing voltage to stable current. It also gains the expressions of arc resistance and arc power, arc resistance and arc power both increase as the source voltage increases and decrease as the value of inductance increases. Conclusions above mentioned are helpful to design intrinsically safe circuits.