Influence of Voltage and Current on Arc Duration and Energy of DC Electromagnetic Contactor
作者： Kiyoshi Yoshida , Koichiro Sawa , Kenji Suzuki , Masaaki Watanabe , Hideki Daijima
DOI: 10.1109/HOLM.2011.6034775
关键词: Electric arc 、 Arc flash 、 Series and parallel circuits 、 Materials science 、 Voltage source 、 Electromagnetics 、 Contactor 、 Arc (geometry) 、 Electrical engineering 、 Pre-charge 、 Optics
摘要: In this paper, experimental results were described for a general DC electromagnetic contactor switching under permanent magnet arc extinguishing. The experiment circuit was series of source voltage E, resistive load R and contactor. closed contact current Io adjusted by R. influence E on duration ta energy Ea break experimented. had been changed within range 50 -- 500V set from 5 to 30A at each E. Arc waveforms measured with digital oscilloscope. When high, became long. However, in 300V or more, shortens when is increased. 200V, not seen almost constant. 50V, long along Io, it clarified that magnets doesn't arc. shortening the 100V more. We think effect Lorentz's force different according Io. addition, are found large. Keywords contactor, discharge, duration, magnetic blast, energy,
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