Influence of Contact Opening Speed on Motion of Arc Spots on Contact Surfaces for Break Arcs occurri

• 作 者: KojunKONISHI;JunyaSEKIKAWA;
• 机 构: Graduate school of Engineering,Shizuoka University 3-5-1Johoku,Naka-ku,Hamamatu,Shizuoka,432-8561 Ja
• 出 处: 第十三届国际机电装置会议(IS-EMD2013)
• 发表日期: 2013年期

　　Break ares are generated in a DC100V-450V and 10A resistive circuit.Motion of arc spots on the anode and cathode surfaces is observed using a high-speed camera.The supply voltage and contact opening speed are varied.Results are shown as follows.The arc spots locate on side surfaces of the contacts when the gap voltage increased rapidly.Position of the arc spots tends to shift from the tip of the contacts to the root of them with increasing the supply voltage and with decreasing the contact opening speed.