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http://dx.doi.org/10.5916/jkosme.2010.34.2.332

Detection Technique and Device of Series Arcing Phenomena  

Ji, Hong-Keun (한국해양대학교 전기전자공학부)
Jung, Kwang-Suk (한국해양대학교 전기전자공학부)
Park, Dae-Won (한국해양대학교 전기전자공학부)
Kil, Gyung-Suk (한국해양대학교 전기전자공학부)
Seo, Dong-Hoan (한국해양대학교 전기전자공학부)
Rhyu, Keel-Soo (한국해양대학교 IT공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.34, no.2, 2010 , pp. 332-338 More about this Journal
Abstract
Annually, electrical fires caused by arcing phenomena in power system rapidly increase as the use of more electric appliances, but there is no established method for the prevention of the accidents. With this background, this paper dealt with the experimental results on a series arc detection technique and a device for air conditioners. Series arcing phenomena that is generated in incomplete connection of air conditioners was simulated, and the frequency spectrum was analyzed. The Fast Fourier Transform (FFT) of the arc pulse showed that the dominant frequency components exist in ranges of 190 kHz~250 kHz and 900 kHz~1.6 MHz. An arc detection circuit with low cut off frequency of 170 kHz to attenuate 60 Hz by 170 dB and a signal discriminator were designed. Also, an algorithm which separate series arc signal from unwanted noises produced by switching operation, inverter, and surge was proposed. Application experiment was carried out on several types of air-conditioners by using the arc generator specified in UL1699, and the results showed the over 99 % accuracy.
Keywords
Electric fire; Air conditioner; Series arc; Dection circuit; Arc generator; UL1699;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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