发明授权
- 专利标题： Method and apparatus for controlling arcing in a DC arc furnace
- 专利标题（中）： 用于控制直流电弧炉中电弧的方法和装置
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申请号： US09428919申请日： 1999-10-28
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公开(公告)号： US06192065B1公开(公告)日： 2001-02-20
- 发明人: Jan Abraham Ferreira , Anthony Wayne Wewege
- 申请人： Jan Abraham Ferreira , Anthony Wayne Wewege
- 优先权： ZA98/9803 19981028
- 主分类号： H05B7144
- IPC分类号： H05B7144
摘要：
In the operation of a dc arc furnace components of the furnace are monitored to detect unwanted arcs. A first low impedance path is continuously established between the components. When an arc is detected a second conductive path of a predetermined impedance is established between the components, in parallel to the first low impedance path, to extinguish the arc. After the arc has been extinguished the second path is open circuited to restore the furnace to normal operation.
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