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The Mysterious Motion of Long AC Arcs Understood

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Anode and cathode arc roots move in different ways.

Michael A. Greenwood

The motion characteristics of long AC arcs in atmospheric air have been explained by researchers who say that the findings could result in improved safety and stability for power systems. A typical pattern of a long AC arc burning in atmospheric air. Reprinted with permission of Applied Physics Letters. The research team, led by Jinliang He of the State Key Lab of Power System at Tsinghua University in Beijing, noted that, whereas the motion of short arcs, DC arcs and arcs in closed space have received much attention, relatively little was known about the very distinct motion...Read full article

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    Published: April 2007
    Glossary
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    atmospheric airDC arcsphotonicspower systemsResearch & TechnologyTech Pulse

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