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

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. Subsequ...

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Bibliographic Details
Published in:IEEJ transactions on electrical and electronic engineering 2021-06, Vol.16 (6), p.905-915
Main Authors: Nakamura, Koya, Kodama, Naoto, Yokomizu, Yasunobu, Takahashi, Asato, Kondo, Yusuke
Format: Article
Language:English
Subjects:
arc resistance
Cylinders
DC arc extinction
Direct current
fuse
polymer
Polymers
Polymethyl methacrylate
Quenching
Sand
silica sand
Silicon dioxide
Thermal energy
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Summary: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. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.
ISSN:1931-4973
1931-4981
DOI:10.1002/tee.23368