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Вы запросили Авторы: Chang K.S.
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Ko T.K., Ahn M.C., Lee H., Song J., Chang K.S.

Verification of a Design Technique of an SFCL System With a Copper Bypass Reactor

Ключевые слова: power equipment, FCL resistive, bypass, current sharing, impedance, coils, design parameters, current limiting characteristics, design, numerical analysis, experimental results, HTS, YBCO, coated conductors

IEEE Transactions Applied Superconductivity, 2012, v.22, N 3, p.5602504

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Ko T.K., Yoon Y.S., Lee H., Lee J., Chang K.S., Kim Y.J., Jo H.C.

Recovery estimation for over-current test of non-inductive fault current limiters using numerical analysis

Ключевые слова: numerical analysis, HTS, heat transfer, YBCO, coated conductors, coils bifilar, FCL resistive, coils pancake, power equipment, overcurrent, recovery characteristics, experimental results, power equipment

Cryogenics, 2011, v.51, N 6, p.261-265

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Lee S., Ko T.K., Choi S., Chang K.S., Kim Y.J., Jang J.Y.

Temperature Characteristic of High-Tc Coated Conductor by Numerical Method When a Fault Current Flows

Ключевые слова: HTS, coated conductors, numerical analysis, fault currents, temperature distribution, overcurrent, YBCO, substrate Ni-W, substrate Hastelloy, thermal properties, electromagnetic forces, current distribution, resistance, temperature dependence, experimental results

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.1233-1237

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Ko T.K., Kim H.J., Kim H.M., Yoon Y.S., Chang K.S., Kim Y.J., Jo H.C., Chu S.Y.

Operating Characteristics of Oval-Shaped Resistive Superconducting Fault Current Limiter

Ключевые слова: HTS, power equipment, FCL resistive, geometry effects, short circuit test, recovery characteristics, nitrogen liquid , substrate Hastelloy, coils solenoidal, coils pancake, comparison, critical caracteristics, current-voltage characteristics, fault currents, temperature rise , electric field

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.1246-1249

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Ko T.K., Ahn M.C., Kim H.M., Choi S., Chang K.S., Kim Y.J., Jang J.Y., Jo H.C.

A Structure Design of HTS Current Leads With Respect to the Structure of Coated Conductor and the Current Terminal

Ключевые слова: HTS, coated conductors, current leads, YBCO, thermal conductivity, stabilizing layers, heat leakage, termination, current-voltage characteristics

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.3013-3016

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Ko T.K., Ahn M.C., Chang K.S., Kim Y.J.

Experimental Test and Numerical Analysis to Estimate Permissible Transport Current Considering Protection of High-Tc Superconducting Tapes in Adiabatic Condition

Ключевые слова: HTS, YBCO, coated conductors, transport currents, normal zone propagation, experimental results, numerical analysis

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.1665-1669

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Ko T.K., Kang H., Chang K.S., Kim Y.J., Na J.B., Hwang Y.J.

Experimental Study on the Lightning Impulse Dielectric Characteristics of Sub-Cooled Liquid Nitrogen for a High Voltage Superconducting Fault Current Limiter

Ключевые слова: barriers, FCL, HTS, cryogenic systems, nitrogen sub-cooled, breakdown characteristics, dielectric properties, high voltage process, power equipment, geometry effects, numerical analysis, experimental results

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.1336-1339

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Ko T.K., Choi S., Chang K.S., Kim Y.J., Jang J.Y., Chu S.Y.

Experimental Analysis of Unequal Voltage Distribution on a Single YBCO Coated Conductor Affected by Inhomogeneous Critical Currents in Liquid Nitrogen and Sub-Cooled Liquid Nitrogen

Ключевые слова: HTS, YBCO, coated conductors, voltage distribution, nitrogen liquid , nitrogen sub-cooled, critical caracteristics, critical current, homogeneity, current-voltage characteristics, short circuit test, experimental results

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.2992-2996

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Ko T.K., Kim H.J., Lee H., Chang K.S., Kim Y.J., Kim K.J., Jo H.C.

A Research About Bending Strain Effect on Splice Characteristics in YBa_2Cu_3O_7- x Coated Conductors Under Various Pressures in Splicing

Ключевые слова: HTS, YBCO, coated conductors, joints, mechanical properties, bending process, pressure dependence, joint resistances, critical caracteristics, current-voltage characteristics, critical current, experimental results

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.3001-3004

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Ko T.K., Chang K.S., Kim Y.J., Jo H.C., CheolAhn M.

An Experimental Study on the Joint Methods Between Double Pancake Coils Using YBCO Coated Conductors

Ключевые слова: HTS, YBCO, coated conductors, joints, coils pancake, experimental results, joint resistances, thermal stability, fabrication

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.3005-3008

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Ko T.K., Lee C.Y., Chang K.S., Kim Y.J., Chung Y.D., Jang J.Y.

A Research on Design Method and Theoretical Analysis of Electromagnetic Suspension System Considering Magnetic Interface Between Coils

Ключевые слова: HTS, coils, core iron, Maglev system, modeling, numerical analysis, design parameters, current waveforms, suspension

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.1523-1527

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Ko T.K., Kim H.J., Kim K., Lee H., Choi S., Chang K.S., Kim Y.J., Hwang Y.J.

The Effect of Operating Temperature on Transport AC Loss According to an YBCO Superconducting Tape Array Geometry

Ключевые слова: HTS, YBCO, coated conductors, ac losses, temperature dependence, geometry effects, resistivity, substrate Ni-W, stabilizing layers, coils solenoidal, coils pancake, measurement setup, numerical analysis, critical caracteristics, critical current, experimental results

IEEE Transactions Applied Superconductivity, 2011, v.21, N 3, p.3329-3333

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Ko T.K., Lee J., Chang K.S., Jang J.Y.

An experimental analysis on the design of HTS current lead with respect to the arrangement of coated conductor and the shape of a current terminal

Ключевые слова: HTS, coated conductors, current leads, design, geometry effects, sample shapes, critical caracteristics, termination, YBCO, current-voltage characteristics

Physica C, 2011, v.471, N 21-22, p.1007-1011

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Bae D.K., Ko T.K., Choi S., Lee C.Y., Chang K.S., Kim Y.J., Na J.B., Chu S.Y., Hwang Y.J.

Design, manufacture and performance evaluation of HTS electromagnets for the hybrid magnetic levitation system

Ключевые слова: levitation performance, hybrid systems, HTS, Bi2223/Ag, magnets, Maglev system, fabrication, design parameters, suspension, magnetic field distribution, coils pancake, critical caracteristics, current-voltage characteristics, current waveforms, voltage waveforms

Physica C, 2011, v.471, N 21-22, p.1501-1505

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Na J.B., Kang H., Chang K.S., Kim Y.J., Chu S.Y., Kim T.J., Kim K.-J., Lee H.G., Ko T.K.

Experimental study on the lightning impulse dielectric strength of liquid nitrogen insulation medium according to various pressures

Ключевые слова: cryogenic systems, nitrogen liquid , dielectric properties, insulating medium, pressure dependence, pulsed operation, experimental results

Physica C, 2011, v.471, N 21-22, p.1581-1585

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Kim Y., Ko T., Seok B., Chang K.S., Park D., Ahn M., Yang S.

Current limiting module and hybrid current limiter using different kinds of superconducting wires

Ключевые слова: patents, HTS, FCL inductive, Bi2223, YBCO, tapes, coated conductors, power equipment

United States Patent, 2010, v., N , p.0

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Ko T.K., Lee H.G., Kang H., Chang K.S., Kim Y.J., Kim K.J., Na J.B.

Experimental study on the dielectric characteristics of liquid nitrogen with respect to various pressures

Ключевые слова: nitrogen liquid , dielectric properties, pressure dependence, experimental results, breakdown characteristics, insulation, cryostat, measurement technique

Physica C, 2010, v.470, N 20, p.1899-1903

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Kim J., Ko T.K., Ahn M.C., Park D.K., Yang S.E., Chang K.S., Chu S.Y.

Characteristic Comparison of the Superconducting Fault Current Limiter With Various Bypass Reactors

Ключевые слова: power equipment, FCL resistive, bypass, HTS, YBCO, coated conductors, Bi2223, tapes, coils bifilar, comparison

IEEE Transactions Applied Superconductivity, 2010, v.20, N 3, p.1190-1193

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Bae D.K., Ko T.K., Ahn M.C., Yoon Y.S., Park D.K., Chang K.S., Chung Y.D., Jang J.Y., Lee E.R.

Parameter Determination of a Condition for Simultaneous Quench in Series-Connected YBCO Coated Conductors

Ключевые слова: HTS, YBCO, coated conductors, current limiting characteristics, experimental results, numerical analysis

IEEE Transactions Applied Superconductivity, 2010, v.20, N 3, p.1207-1210

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Ko T.K., Park D.K., Yang S.E., Chang K.S., Na J.B.

Electrical Test of Bifilar-Wound Pancake Limiting Module Based on Multi-Stacked Coated Conductor for Application to a Power System

Ключевые слова: HTS, coated conductors, coils pancake, power equipment, ac losses, YBCO

IEEE Transactions Applied Superconductivity, 2010, v.20, N 3, p.1308-1311

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Авторы: Chang K.S.

Verification of a Design Technique of an SFCL System With a Copper Bypass Reactor

Recovery estimation for over-current test of non-inductive fault current limiters using numerical analysis

Temperature Characteristic of High-Tc Coated Conductor by Numerical Method When a Fault Current Flows

Operating Characteristics of Oval-Shaped Resistive Superconducting Fault Current Limiter

A Structure Design of HTS Current Leads With Respect to the Structure of Coated Conductor and the Current Terminal

Experimental Test and Numerical Analysis to Estimate Permissible Transport Current Considering Protection of High-Tc Superconducting Tapes in Adiabatic Condition

Experimental Study on the Lightning Impulse Dielectric Characteristics of Sub-Cooled Liquid Nitrogen for a High Voltage Superconducting Fault Current Limiter

Experimental Analysis of Unequal Voltage Distribution on a Single YBCO Coated Conductor Affected by Inhomogeneous Critical Currents in Liquid Nitrogen and Sub-Cooled Liquid Nitrogen

A Research About Bending Strain Effect on Splice Characteristics in YBa_2Cu_3O_7- x Coated Conductors Under Various Pressures in Splicing

An Experimental Study on the Joint Methods Between Double Pancake Coils Using YBCO Coated Conductors

A Research on Design Method and Theoretical Analysis of Electromagnetic Suspension System Considering Magnetic Interface Between Coils

The Effect of Operating Temperature on Transport AC Loss According to an YBCO Superconducting Tape Array Geometry

An experimental analysis on the design of HTS current lead with respect to the arrangement of coated conductor and the shape of a current terminal

Design, manufacture and performance evaluation of HTS electromagnets for the hybrid magnetic levitation system

Experimental study on the lightning impulse dielectric strength of liquid nitrogen insulation medium according to various pressures

Current limiting module and hybrid current limiter using different kinds of superconducting wires

Experimental study on the dielectric characteristics of liquid nitrogen with respect to various pressures

Characteristic Comparison of the Superconducting Fault Current Limiter With Various Bypass Reactors

Parameter Determination of a Condition for Simultaneous Quench in Series-Connected YBCO Coated Conductors

Electrical Test of Bifilar-Wound Pancake Limiting Module Based on Multi-Stacked Coated Conductor for Application to a Power System