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A Study on Development of Electric Safety Control Apparatus by Using Thermal Characteristics of PTC Thermistor  

Kwak, Dong-Kurl (강원대학교 방재기술전문대학원)
Jung, Do-Young (강원대학교 방재기술전문대학원)
Publication Information
Fire Science and Engineering / v.21, no.4, 2007 , pp. 65-71 More about this Journal
Abstract
This paper is studied on a protective control system for electrical fire and electrical faults by using electrical and thermal characteristics of PTC thermistor. The PTC thermistor has characteristic or positive resistivity temperature coefficient according to the temperature variation, which is construction of a regular square and cube demarcation with $BaTiO_3$ Ceramics of positive temperature coefficient. Also PTC thermistor shows the phenomenon which is rapidly increased in the resistivity if the temperature is increased over Curie temperature point. This paper is proposed on a protective control system used PTC thermistor which is protected from electrical fire due to electric short circuit faults or overload faults. Some experimental results of the proposed electric safety control apparatus are confirmed to the validity of the analytical results.
Keywords
PTC thermistor; Positive resistivity temperature coefficient; Electrical fire; Electric short circuit faults; Overload faults;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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