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Dependence of arc interrupting capability on spatial distribution of airflow velocity in air-blast flat-type quenching chamber Yokomizu, Yasunobu Matsumura, Toshiro Matsuda, Akiji Ohno, Hideyuki open access Copyright © 2003 IEEE. Reprinted from (relevant publication info). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Nagoya University’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. Airflow arc discharges correlation interrupting capability vortex The dependence of an interrupting capability on the spatial distribution of airflow velocity was investigated in an airblast flat-type quenching chamber. To obtain a various distribution of airflow velocity, the axial position of a nozzle and the inlet width of the nozzle were varied. For each of the axial positions and each of the inlet widths, arc interruption tests for ac currents were performed to measure the interrupting capability. Furthermore, the distribution of airflow velocity in the quenching chamber was calculated intentionally in the absence of the arc. From the test and calculation results, we found out a definite relationship between the velocity distribution and the interrupting capability. IEEE 2003-01 eng journal article VoR http://hdl.handle.net/2237/6793 https://nagoya.repo.nii.ac.jp/records/5209 https://doi.org/10.1109/TPWRD.2002.806687 0885-8977 IEEE Transactions on Power Delivery 18 1 101 106 https://nagoya.repo.nii.ac.jp/record/5209/files/01159904.pdf application/pdf 300.0 kB 2018-02-19