• Title/Summary/Keyword: 퓨즈

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Consideration On Short Circuit Tests For Evaluation Of Breaking Performance Of Current-Limiting Fuses (한류형 전력퓨즈의 차단성능평가 위한 단락시험에 관한 고찰)

  • Kim, Dae-Won;Suh, Yoon-Taek;Yoon, Hak-Dong;Jung, Hee-Jae;Kim, Maeng-Hyun
    • Proceedings of the KIEE Conference
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    • 2003.07a
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    • pp.543-545
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    • 2003
  • 한류형 전력퓨즈는 계통의 단락사고로 고장 전류가 흐를 때 퓨즈내부에서 발생하는 저항에 의해 고장전류를 회로 고유의 단락전류보다 아주 적은 값으로 제한하고 최소 시간내에 차단하여 회로를 보호하므로 계통기기의 단락용량를 최소한으로 감소시킬 수 있다. 본 논문에서는 이러한 한류형 전력퓨즈의 단락전류 차단성능 평가를 위해 동작책무에 따른 차단성능을 규명하고자 단락발전기를 사용하여 단락전류차단시험을 실시하고 그 결과를 제시하였으며, 또한 차단과정에 따른 스트레스들이 단락시험 시 차단성능에 미치는 영향을 다루고 있다.

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A Study on the melting Characteristics of Fuse Element by Repeating Overcurrent (반복과전류에 의한 퓨즈 엘리먼트의 용단특성에 관한 연구)

  • Kim, Youn-Hyun
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.24 no.2
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    • pp.120-126
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    • 2010
  • This paper propose analysis and examination of the melting characteristic of fuse elements by repeating overcurrent as a depletion factor of high pressure current limiting fuse through test following existence and nonexistence of extinction material and various configuration of elements. To examine deterioration progress rate by repeating overcurrent we analyzed heat for various element notching configuration, designed plate type, ring type element and estimated the relationship with life span by analyzing breaking characteristic through repeating overcurrent test with adjusting load factor at Silicon Dioxide(SiO2) filled state or in air. A Crack by repeat stress, decrease of section and transformation by friction with extinction material by repeating overcurrent causes a problem which shortens life span based on fuse repeating frequency. Since the contents of this paper might be useful to research the correlation between friction of materials and repeating life span based on load factor of repeating current, the quality of product would be improved through solution of the problem.

An Electrical Properties of Antifuses based on $BaTiO_3/SiO_2$ films ($BaTiO_3/SiO_2$로 구성된 안티퓨즈의 전기적 특성)

  • Lee, Young-Min;Lee, Jae-Sung;Lee, Yong-Hyun
    • Journal of Sensor Science and Technology
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    • v.7 no.5
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    • pp.364-371
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    • 1998
  • A novel antifuse has been developed for field programmable gate arrays (FPGA's) as a voltage programmable link with Al/$BaTiO_3/SiO_2$/TiW-silicide. The proper program voltage can be obtained by adjusting the deposition thickness of $BaTiO_3$ film. When a negative voltage was applied at bottom TiW-silicide electrode of the antifuse, based on $BaTiO_3(120{\AA})$/$SiO_2(120{\AA})$, the program voltage was about l4.4V and on-resistances were ranged between 40 and $50{\Omega}$. The current-voltage characteristics of antifuses are consistent with a Frenkel-Poole conduction model. However, there are some deviations depending on bias polarity that are probably due to the difference in the interface properties between Al/$BaTiO_3$ and TiW-silicide/$SiO_2$.

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Study on the solution for the overflow of molten solder during the soldering of fuse cap through CFD analysis (전산유체해석을 통한 퓨즈캡 솔더링 시의 용융솔더 넘침 문제 해결방안 연구)

  • Jeong, Nam-Gyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.10
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    • pp.31-36
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    • 2018
  • Fuses are used to protect electric circuits or devices from excess current. Glass-tube fuses are typically used, but problems have arisen due to the mandated switch from conventional solder to lead-free solder. This study used CFD to simulate the phenomenon of molten solder being poured out of a fuse during the soldering process for a fuse cap and fuse element. In addition, a method is proposed to prevent solder from overflowing, and its effectiveness was verified based on the analysis results. The results show that a sufficient increase of the temperature inside the glass tube before soldering and gravity can help to prevent the solder from overflowing.

Effect the I-T curve and electrical characteristic of fuse elements by plated tin thickness (주석 도금 두께에 따른 퓨즈 가용체의 I-T 커브 및 전기적 특성의 영향)

  • Jin, Sang-Jun;Kim, Eun-Min;Youn, Jae-Seo;Lee, Ye-Ji;Noh, Seong-Yeo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.6
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    • pp.80-87
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    • 2018
  • In recent years, due to the spread of various renewable energy power sources and the pursuit of high efficiency and low-power consumption, not only trends in the electric power industry but also the consumption, control methods, and characteristics are diversified. However, in this diversified electric power industry, the fuse (which is the core part responsible for safety) has not developed significantly in classical operation mode, and thus, fires continue to occur. In this paper, the effects of low melting-point metal plating and high melting-point metal plating on operating characteristics and IT curve movement of the fuse are investigated in a cartridge fuse, which is a classic fuse manufacturing method. The effects of plating on the thickness of the fuse are investigated, and various operating characteristics of the fuse are implemented. In addition, it is suggested that the plating of the low melting-point metal moves the rated current line of the fuse to a low rating, and moves operating characteristics to characteristics of delay operation. It is possible to design various operating characteristics using this characteristic.

Micro chip fuse의 미세구조 및 전기적 특성 연구

  • Gang, Gyeong-Min;Myeong, Seong-Jae;Jeon, Myeong-Pyo;Jo, Jeong-Ho;Nam, Jung-Hui;Choe, Byeong-Hyeon;Go, Tae-Gyeong;Park, Su-Byeong
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2009.11a
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    • pp.82-82
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    • 2009
  • 본 연구에서는 Glass ceramic $SiO_2-CaO-Al_2O_3$를 사용하여 적층형 칩 퓨즈를 제조하였다. 퓨즈의 용단 특성 및 IR특성을 개선하기 위하여 기공조제로써 Corn starch 파우더(x=5, 10, 20, 30, 40, 50wt%)를 혼합하여 기공을 형성하게 하였다. 미세구조 관찰 결과 Corn starch 파우더의 함량이 증가함에 따라 기공률이 증가하였다. 또한 전극의 선폭(x=50, 100, 150, $200{\mu}m$)을 변화 시킴으로써 전극의 폭이 커질수록 저항값이 줄어든다는 것을 알 수가 있었다. 기공층 도입을 통하여 적층형 칩 퓨즈의 용단 특성의 개선 및 ARC 억제가 가능하였다.

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Design of Cap Inspection Algorithm of Fuse Cap (퓨즈 캡의 검사를 위한 알고리즘 설계)

  • Ban, Gi-Jong;Won, Young-Jin;Lim, Seung-Ha
    • 전자공학회논문지 IE
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    • v.47 no.4
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    • pp.28-33
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    • 2010
  • In this paper, we proposed to the inspection algorithm for cap, Electric fuse is an over current and circuit protection device which is occurred in electric & electronic appliance. Also the fuse are protection the second hazard at arc etc. Fuse are interest regarding a safety increased. Consequently, the fuse came to be very important. Cap inspection algorithm is designed for the cap of fuse. CCD camera is monitering the solder of cap distribution map. The conditioning of fuse cap; suming all searching data with non solder area. the area is bigger reference data then the cap is bad cap.

High-Voltage Pulse Generation by Using Flux Compression Generator and Fuse Opening Switch (자속압축발전기와 퓨즈개방스위치를 이용한 고전압펄스 발생)

  • Kuk, Jeong-Hyeon;Kim, Jin-Gi;Lee, Eun-Soo
    • Proceedings of the KIEE Conference
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    • 2006.07c
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    • pp.1463-1464
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    • 2006
  • 이 논문에서는 코일의 구조가 변압기형태인 나선형 자속압축 발전기, 켄칭매질인 $SiO_2$ 분말과 동선으로 제작한 퓨즈개방스위치, 두 개의 전극으로 간단하게 만든 스파크 갭 스위치 그리고 수저항 모의부하로 이루어진 대전류 고전압 펄스발생 시스템을 제작하고 출력특성을 분석하였다. 실험결과, 축전기로부터 공급한 364J의 초기에너지를 나선형 자속압축발전기로 증폭을 하고 최대 출력전류에서 퓨즈개방스위치가 동작하여 $120{\Omega}$의 수저항에 펄스상승시간이 56ns이고, 펄스폭이 $0.1{\mu}s$인 180kV의 고전압펄스를 인가하였다.

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전기보안담당자를 위한 자가용 전기설비 사고사례

  • 대한전기협회
    • JOURNAL OF ELECTRICAL WORLD
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    • no.6 s.138
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    • pp.89-92
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    • 1988
  • 변압기 1차측에는 과부화 보호를 위한 고압 컷 아웃이 사용되고 여기에 텐션형 퓨즈가 장착되어 있다. 고압 컷 아웃은 전류개폐능력 관계로 300kVA 이하인 변압기에 사용된다. 변압기 운전중은 고압 컷 아웃의 내부점검을 할 수 없기 때문에 통상은 눈으로 외시점검을 하는 것이 일반적이다. 고압 컷 아웃의 사고로는 퓨즈 용단, 애자부의 균열, 오손 등으로 인한 지락이나 접촉 칼날부의 접촉 불량, 본체의 파손 등이 있다. 이러한 사고를 사전에 발견하기는 곤란한 경우가 많은 것 같다. 이러한 사고를 사전에 발견하기는 곤란한 경우가 많은 것 같다. 다음은 고압 컷 아웃이 파손해서 정전된 사례이다.

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