• Title/Summary/Keyword: Current Limiting

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Analytical polarization curve of DMFC anode

  • Kulikovsky, A.A.
    • Advances in Energy Research
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    • v.1 no.1
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    • pp.35-52
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    • 2013
  • A model for DMFC anode performance is developed. The model takes into account potential--independent methanol adsorption on the catalyst surface, finite rate of proton transport through the anode catalyst layer (ACL), and a potential loss due to methanol transport in the anode backing layer. An approximate analytical half--cell polarization curve is derived and equations for the anode limiting current density are obtained. The polarization curve is fitted to the curves measured by Nordlund and Lindbergh and parameters resulted from the fitting are discussed.

New electrode structure for reducing power consumption of PDPs

  • Jung, Hae-Yoon;Cheong, Hee-Woon;Lee, Tae-Ho;Whang, Ki-Woong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.69-72
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    • 2008
  • A new electrode structure is proposed in this paper which can increase the discharge efficiency of plasma display panels and also decrease the panel capacitance by decreasing the electrode area effectively. Even with the decreased electrode area, the proposed structure could suppress the requirement for increasing the voltage and improve efficiency by limiting the discharge current.

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A Study on Application of IEEE on High-voltage Current Limiting Fuses for Distribution System (배전급 고압 한류형 퓨즈의 IEEE 적용에 관한 고찰)

  • Kim Dae won;Suh Yoon Taek;Yoon Hak Dong;Kim Maeng Hyun
    • Proceedings of the KIEE Conference
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    • summer
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    • pp.604-606
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    • 2004
  • 본 논문은 배전계통에서 단락사고 발생할 때 나타나는 매우 큰 단락전류를 일정한 값 이하로 제한하여 계통의 다른 기기들에 대한 단락용량을 감소시키는 고압 한류 퓨즈에 대해 IEEE에서 다루는 퓨즈의 분류 및 정의, 동작원리, 적용방법 및 보호협조 방법 둥을 체계적으로 제시하였다.

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Investigation of Diazepam by Pulsed Rotation Voltammetry

  • Blaedel, W.J.;Hahn, Young-Hee
    • Archives of Pharmacal Research
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    • v.2 no.2
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    • pp.111-114
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    • 1979
  • Diazepam was investigated in aqueous buffer media using pulsed rotation voltammetry. The dependence of half-wave potentials on pH indicated a two proton involvement in a two electron transfer reduction in the pH range 3-10. Dizaepam at micromolar concentration levels may be determined by measurement of the limiting difference current.

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ESTIMATION OF REQUIRED CAPACITY OF SHUNT TYPE ACTIVE POWER FILTER WITH A THYRISTOR CONVERTER LOAD

  • Jeong, Seung-Gi;Kim, Dong-Ha
    • Proceedings of the KIPE Conference
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    • 1998.10a
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    • pp.802-807
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    • 1998
  • The main drawback of parallel type active power filters (APF) is the large capacity required for harmonic compensation. This paper evaluates the APF capacity requirement of harmonic/reactive power compensation for thyristor converter load. Theoretically achievable maximum power factor under partial load is evaluated. And it is shown that the APF capacity can be considerably reduced while slightly sacrificing the filtering performance by deliberately limiting the peak current of the APF.

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Reliability Test Technology of Current Limiting Fuse (한류형 퓨즈 신뢰성 시험 기술)

  • Cho, Kook-Hee;CHo, Moon-Soo
    • Proceedings of the KIEE Conference
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    • 2005.07c
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    • pp.2232-2234
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    • 2005
  • 배전 계통에서는 전동기의 시동 전류, 변압기의 여자돌입전류, 콘덴서의 고주파 과도 돌입전류 등의 과전류가 흐르므로, 회로 보호용 한류 퓨즈가 엘리먼트의 피로나 열화 등에 의해, 예기치 못한 용단이 발생한다. 이 경우 고장을 미연에 방지하기 위해, 한류 퓨즈의 신뢰성을 보다 향상시키기 위해서는 제품 특성의 균일성을 확보함으로서 그 사용 실태에 대응해서 적절히 교환하는 것이 필요하다.

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The study on the Electrical Property of the Fuse Element Notch (휴즈엘리먼트의 노치형태에 따른 전기적 특성 연구)

  • Lee, Sei-Hyun;Lee, Byung-Sung;Han, Sang-Ok;Kim, Jong-Suk;Lee, Deok-Chool
    • Proceedings of the KIEE Conference
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    • 1993.07b
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    • pp.1153-1155
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    • 1993
  • This paper presents some experimental result of current limiting, fusing and short circuit interruption behavior by notch construction of thin copper film $35{\mu}m$ on epoxy substrate. A fuse-link having elements of copper film provided high-precision small holes by photo eatching process.

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