• Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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• 2002.02a
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• pp.330-333
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• 2002

This study is concerned with the optimal design of DC reactor type high-Tc superconducting fault current limiter(SFCL) by Newton method. What should be first thought over in developing SFCL is the condition in which the cost function is minimized under given constraints. So, this condition is supposed to be the values corresponding to the variables the cost function counts on. In this paper, we got the result for the SFCL available at the level of 6.6kV-200A by means of simulation.

• Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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• 2001.02a
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• pp.176-177
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• 2001

Three nearly identical superconducting fault current limiters (SFCLs) were connected in series to increase the voltage ratings. A slight difference in the quench starting point of individual SFCL units produced significantly imbalanced power distribution when connected in series. The imbalance was successfully removed by connecting a shunt resistor to one SFCL in parallel. 1.2 kV SFCL was designed with five current limiting elements and two or three shunt resistors.

• Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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• 2003.10a
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• pp.197-200
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• 2003

As the power system is more complex and power demands increase, the fault currents have the tendency of increasing gradually. In the near future it will happen that the fault currents exceed circuit breaker rating for some substations. In this paper, the resistive SFCL (Superconducting Fault Current Limiter) is installed at Bus-Tie location to reduce the fault current in korea power systems and evaluated technical and economical Impacts.

• Proceedings of the KIEE Conference
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• 2007.04b
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• pp.35-36
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• 2007

We investigated the characteristics of three phase flux-lock type SFCL. Three phase flux-lock type consists of three reactor wound on an iron core in each single phase and the secondary coil is connected to the superconducting elements in series. the superconducting elements with serial connection were quenched simultangously in the single line-to-ground fault.

• 한국초전도학회:학술대회논문집
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• v.15
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• pp.86-86
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• 2005

• 한국초전도학회:학술대회논문집
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• v.15
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• pp.87-87
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• 2005

• Superconductivity and Cryogenics
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• v.19 no.2
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• pp.11-16
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• 2017

• 전기의세계
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• v.56 no.4
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• pp.59-63
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• 2007

• Proceedings of the KAIS Fall Conference
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• 2012.05a
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• pp.245-248
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• 2012

한국 대중문화의 발전과 더불어 국내외에서는 한류라는 브랜드로 대한민국의 문화와 대한민국 자체에 대하여 많은 호감과 함께 질투의 시선을 보내고 있다. 이러한 대한민국의 대중문화산업은 이제 대한민국을 벗어나 우리만의 문화가 아닌 세계를 지향하며 공감대를 형성하는 문화로 발전하고 있으며, 대중적인 인기를 얻고 있는 스타들이 문화첨병의 역할을 하고 있는 상황이다. 이제 한국의 대중문화는 우리만의 것이 아닌 세계인과 소통하고 나누어야 하는 문화인 것이다. 대한민국의 문화산업은 이제 가파른 성장만이 아닌 기본에 충실한 역사와 철학을 수반해야 할 것이며, 대중에 대한 사회적인 책임과 역할을 수행함으로써 더욱더 세계의 문화와 교감하며 발전해 나갈 수 있을 것이다. 그러므로 본 논문에서는 대중들의 사랑을 통하여 성장하는 스타들의 사회적 기여와 그 활동에 대한 사례를 살펴보고 한류의 지속적인 발전과 문화 창출을 위한 올바른 소셜테이너로서의 책임 및 역할과 지구공동체를 위한 힐링 소사이어티에 대하여 고찰해 보고자 한다.

• Superconductivity and Cryogenics
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• v.5 no.1
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• pp.10-17
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• 2003

For limitation and interruption of short circuit currents from low voltage to extra high voltage applications, the electrical equipment including fuses and circuit breakers, are widely used today. But in order to anticipate increasing needs for effective and competitive device for limiting the growing fault current in electrical power systems, fault current limitation technologies and fault current limitation devices are widely introduced and investigated in these days. Furthermore, the applications of high temperature superconducting materials (HTSC) into the current limiting devices are new approach for developing of novel and effective col-rent limitation electrical equipment. In this research, the necessities of current limitation technology and the developed and developing current limitation devices for power systems are introduced. Finally, the investigation of resistive type fault current limiters which is under development by LG and KEPCO were introduced.