NDLI: Gas density and temperature in thermal volume for self-blast interrupting chambers

Content Provider	IEEE Xplore Digital Library
Author	Shinkai, T. Ooi, M. Uchii, T. Kawano, H. Nakamoto, T. Ikeda, H.
Copyright Year	2002
Description	Author affiliation: Power & Ind. Systems R & D Center, Toshiba Corp., Kawasaki, Japan (Shinkai, T.)
Abstract	Self-blast type interrupting chambers making use of pressure rise due to arc heating have been developed for gas,circuit breakers with lower driving energy. Blowing gas temperature is probably higher in such chambers. Although SF/sub 6/ gas is considered to have good arc extinguish capabilities at higher temperature, it is important to investigate blowing temperature to raise arc extinguish efficiency. This paper reports results of the temperature evaluation carried out in a self-blast interrupting chamber model with up to 25kA interrupting current. The peak of gas temperature is about 1000K in a thermal volume of the self-blast chamber. Higher temperature and lower density hot gas from arcing space hardly mixes sufficiently with low temperature gas that remains in the thermal chamber.
Starting Page	419
Ending Page	423
File Size	337413
Page Count	5
File Format	PDF
ISBN	0780375254
DOI	10.1109/TDC.2002.1178397
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-06
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Temperature distribution Industrial power systems Power system measurements Circuit breakers Heating Sulfur hexafluoride Piezoelectric transducers Voltage Time measurement
Content Type	Text
Resource Type	Article

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