Rise Effect of DC Arc Voltage in Silica Sand: Various Interelectrode Distances and Arrangement of PA66-Cylinder

Takahashi, Asato; Kodama, Naoto; Yokomizu, Yasunobu; Kondo, Yusuke

doi:10.1109/icepe-st.2019.8928782

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2021

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“…Our research group has previously conducted investigations to improve the arc-quenching performance of fuses by applying new methods [18][19][20]. We have been attempting to identify methods that can increase the arc column resistance during arc quenching by arranging a polymer material in a silica-sand-filled space.…”

Section: Introductionmentioning

confidence: 99%

Increasing Arc Column Resistance During DC Arc‐Quenching Through Arrangement of Polymer Cylinder in Silica Sand

Nakamura

Kodama

Yokomizu

et al. 2021

IEEJ Transactions Elec Engng

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In this study, experiments pertaining to direct current (DC) interruptions are performed in an arc-quenching chamber filled with silica sand. First, the arc column resistance is measured during DC arc-quenching to demonstrate the elementary aspects of the arc in the silica-sand-filled space. Subsequently, an arrangement comprising a polymer cylinder between electrodes in the silica-sand-filled space is proposed to increase the arc column resistance during DC arc-quenching. A polymethyl methacrylate (PMMA) cylinder is used in the experiments. Measurement results indicate that the arrangement of the PMMA cylinder causes the arc column resistance to increase approximately twofold in comparison with the no-PMMA cylinder arrangement. Finally, the effect of increasing the arc column resistance is discussed in terms of PMMA and silica vapor.

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Section: Introductionmentioning

confidence: 99%