DocumentCode :
1073434
Title :
Dependence of arc interrupting capability on spatial distribution of airflow velocity in air-blast flat-type quenching chamber
Author :
Yokomizu, Yasunobu ; Matsumura, Toshiro ; Matsuda, Akiji ; Ohno, Hideyuki
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
Volume :
18
Issue :
1
fYear :
2003
fDate :
1/1/2003 12:00:00 AM
Firstpage :
101
Lastpage :
106
Abstract :
The dependence of an interrupting capability on the spatial distribution of airflow velocity was investigated in an air-blast 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.
Keywords :
air blast circuit breakers; circuit-breaking arcs; nozzles; AC currents; air-blast flat-type quenching chamber; airflow velocity distribution; arc interrupting capability; arc interruption tests; interrupting capability; nozzle axial position; nozzle inlet width; quenching chamber; spatial distribution; vortex; Arc discharges; Circuit breakers; Circuit testing; Current measurement; Gases; Performance evaluation; Position measurement; Power system reliability; Shape; Temperature;
fLanguage :
English
Journal_Title :
Power Delivery, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8977
Type :
jour
DOI :
10.1109/TPWRD.2002.806687
Filename :
1159904
Link To Document :
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