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Detection Method of Series Arc Signal  

Kil, Gyung-Suk (한국해양대학교 전기전자공학부)
Ji, Hong-Keun (한국해양대학교 전기전자공학부)
Park, Dae-Won (한국해양대학교 전기전자공학부)
Kim, Il-Kwon (한국해양대학교 전기전자공학부)
Rhyu, Keel-Soo (한국해양대학교 IT공학부)
Song, Jae-Yong (국립과학수사연구소)
Publication Information
Journal of the Korean Society for Railway / v.11, no.5, 2008 , pp. 477-481 More about this Journal
Abstract
This paper dealt with a detection method of series arc existence which is a symptom of electric fires in low-voltage system. The proposed detection circuit consists of a high-pass filter with a low cut-off frequency of 3kHz to attenuate power frequency voltage by 80 dB and an active band-pass filter with a center frequency of 4kHz to detect only the series arc signals. The performance of the circuit was evaluated in a phase-controlled incandescent lamp as a non-linear load and an inverted-fed induction motor as a high frequency load by using the arc generator specified in UL1699. From the experimental results, it was confirmed that the proposed method solved the detection error, which is being the most problem, by discriminating the series arc signal even in non-linear and high frequency loads.
Keywords
Electric fire; Series arc; Detection circuit; Phase-control; Non-linear load; Arc generator; UL1699;
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