• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.10 no.4
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• pp.41-48
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• 2010

In this paper, a new type of integrated AFCI is designed and implemented by combining individual circuit breaker characteristics, which can effectively detect arc fault signals in real-time. The proposed integrated AFCI satisfies the UL1699, the USA certification standard, and the Korean circuit breaker standards such as KS C4613 and KS C8321. Data signals are transferred to the management server via ZigBee network to analyze dangerous factors and to prevent unwanted trip. It is also shown by experiments that arc fault signals are detected and analyzed by using the integrated AFCI with ZigBee networks.

• Proceedings of the KIEE Conference
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• 2003.07b
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• pp.876-878
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• 2003

아크차단기(Arc-Fault Circuit Interrupter:AFCI)는 주택의 배선회로에서 아크가 발생하였을 경우 위험한 아크를 검출하여 차단하는 기능을 지니고 있다. 미국에서는 1993년부터 AFCI를 개발하기 시작하여 1997년 후반에 최초의 상압용 AFCI 제품을 출시하였다. 또한 UL(Underwriters Laboratories Inc.)에서는 1999년 2월에 AFCI에 대한 최초의 제품규격인 UL1699를 출간하였다[1-5]. 본 논문에서는 AFCI에 대한 유일한 시험규격인 UL1699를 정리해 보고, 특히 AFCI의 고유기능인 아크검출기능을 시험할 수 있는 시험항목과 AFCI의 분류별 시험항목을 분석하였다.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2009.05a
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• pp.293-296
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• 2009

In order to protect the electrical fire, AFCI(Arc Fault Cirruit Interrupter) was obligated to adopted in United States of America since 2002. AFCI using by line resistor of neutral trace needs to compensate the resistance variation of the line resistor by temperature variation. In this paper, the ASIC including the temperature compensation circuit is implemented. The successful implementation is verified by showing the effectiveness of an electric and a temperature characteristics for ARC signals by simulation results.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.21 no.8
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• pp.144-150
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• 2007

As usage of electric power is increased, the electric fire accident occurrences are growing, too. According to statistics it can be known that electric fire occupies the most weight. However, the method that can detect electric fire accurately is not being developed yet. This paper analyzes the cause of electric fire and the characteristics of Arc Fault Circuit Interrupter(AFCI). First this paper compares AFCI with existing molded-case circuit breaker and finds the hazards caused by arc through power calculation and compares with danger by short circuit. And we suggest the necessity of AFCI through studying relationship of AFCI installation and societal cost.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.2172_2173
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• 2009

UL 1699 규정에서 제시된 다양한 시험방법을 분류하고, 시험방법 중의 하나인 carbonized path arc clearing time test의 시험설비를 구축하였으며, 시험방법 및 절차에 대해 소개하였다. 또한 국내에서 개발되어진 cord 타입 AFCI를 대상으로 시험을 실시하였으며 시험결과 국내에서 개발되어진 cord 타입의 AFCI는 부하전류 3[A]에서도 아크고장을 검출하며 모든 시험전류에서 적합하게 아크를 차단하는 것을 알 수 있었다.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.62 no.6
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• pp.876-880
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• 2013

The major causes of electrical fire are classified to short circuit fault, overload fault, electric leakage and electric contact failure. The principal factor of the fire is electric arc or spark accompanied with such electric faults. Earth Leakage Circuit Breaker (ELB) and Molded_case Circuit Breaker (MCCB), that is, Residual Current Protective Devices (RCDs) used on low voltage distribution lines cut off earth leakage and overload, but the RCD can not cut off electric arc or spark to be a major factor of electrical fire. As the RCDs which are applied in low voltage distribution panel are prescribed to rated breaking time about 30[ms] (KS C 4613), the RCDs can't perceive to the periodic electric arc or spark of more short wavelength level. To improve such problems, this paper studies on an arc fault circuit interrupter (AFCI) using the distorted voltage wave in electric arc faults. The proposed voltage sensing type AFCI is an electrical fire prevention apparatus of new conception that operates a circuit breaker with sensing the instantaneous voltage drop of line voltage at electrical faults occurrence. The proposed AFCI is composed of control circuit topology using some semiconductor switching devices. Some experimental tests of the proposed AFCI confirm practicality and the validity of the analytical results.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.27 no.12
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• pp.109-113
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• 2013

In order to avoid the electrical fire, AFCI(Arc Fault Cirruit Interrupter) has been obligated to be adopted in the United States of America since 2002. AFCI using line resistor of neutral trace needs to compensate the variation of the line resistance by temperature variation. In this paper, the ASIC including the temperature compensation circuit is implemented. The proposed implementation is verified by showing the effectiveness of an electric and a temperature characteristics for Arc signals by simulation results.

• Proceedings of the KIEE Conference
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• summer
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• pp.830-832
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• 2004

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.44 no.1
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• pp.12-18
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• 2007

As an arc fault interrupter, the AFCI mentioned in this paper has been designed to detect and interrupt arc faults due to wire deterioration, insulation, wire damage, loose connection, and excessive mechanical damage. Since AFCI is digital and uses mechanical and electric stress, the length of interruption against overload and over-current is much shorter than the current bi-metal method. Therefore, the risk of electrical fires has been reduced.

• Proceedings of the KIEE Conference
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• 2006.07d
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• pp.1769-1770
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• 2006

Arc Fault is an electric discharge which is occurred in two opposite electrode. In this paper, AFCI(arc fault circuit interrupter) is designed for the interruption of arc fault current which is occurred in the local electric network. This arc is one of the main causes of electric fire. Arc fault in electrical network has the characteristics of low current, high impedance and high frequency. Conventional interrupter does not have the arc current interrupt function. Hence, Arc fault circuit interrupter controller is designed for the interruption of arc fault current which has the modified arc characteristics.