The test facility for the KSTAR superconducting magnets at SAIT

Baang, Sungkeun; Baek, S.; Choi, Hyun-Jun; Chung, E.J.; Chang, Y.B.; Kim, Kee Joo; Kim, J.S.; Kim, K.; Kim, M.K.; Kim, S.B.; Kim, Y.J.; Lee, S.I.; Lee, S.Y.; Lee, Y.H.; Park, H.; Park, K.R.; Winter, Calvin; Yoon, Choon Sup

doi:10.1109/77.828316

Cited by 17 publications

(7 citation statements)

References 1 publication

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“…These initiatives are driven by the necessity to guarantee the dependability of these conductors for practical engineering applications. Notable instances include the FRESCA test facility situated at CERN [4], the SSTF test facility located in Korea [5], and the SULTAN test facility housed within the Switzerland Plasma Physics Research Center [6]. In light of the imperative to address the testing requisites of Cable-In-Conduit Conductors (CICC) within the China Fusion Engineering Experimental Reactor (CFETR) endeavor, a specialized platform named the Superconducting Conductor Experiment (Super-X) testing facility is presently under construction [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Development of a cryogenic DC transformer using for the measurement of large current

Zhang,

Liu

et al. 2024

J. Inst.

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Superconducting transformer is a typical facility used for inducing ultra-high current for large-scale scientific measurement systems, such as SULTAN-facility at the Centre de Recherches en Physique des Plasma (CRPP) in Switzerland, FRESCA-facility at CERN in Switzerland etc. A new program has been launched at the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP) to build a new conductor test facility to investigate the transverse pressure dependence of critical current of various superconducting cables using a compact superconducting transformer and cryogenic electromagnetic press systems. The superconducting transformer can induce a secondary current up to 60 kA, at a background magnetic field up to 15 T at 4.2 K. To measure the induced secondary current at cryogenic temperature precisely, three types of NbTi superconducting coils are designed based on the zero-flux principle to characterize the variation of the measured current. In this paper, the design principle of the cryogenic DC transformer and its commissioning results in a preliminary prototype test device are presented. The measurement results show achievements on accuracy of ±0.6% or less and nonlinearity of better than ±0.25%, which demonstrates the feasibility of the cryogenic DC transformer and provides a reliable technology for the secondary current measurement of a 100 kA superconducting transformer used in the program of Super-X test facility at ASIPP.

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Section: Introductionmentioning

confidence: 99%

Development of a cryogenic DC transformer using for the measurement of large current

Zhang,

Liu

et al. 2024

J. Inst.

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“…A pair of central solenoid model coils (CSMC) have been fabricated and tested at a superconducting magnet test facility [3] to verify the design and manufacturing engineering and to ensure reliable operation after assembly. According to a reference operation scenario of the KSTAR device, the maximum magnetic field strength is 8 T and the maximum ramp rate is 12 T/s.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the KSTAR Central Solenoid Model Coil Experiment

Chung

Chu

Lee

et al. 2007

IEEE Trans. Appl. Supercond.

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The Korea Superconducting Tokamak Advanced Research (KSTAR) Central Solenoid Model Coil (CSMC) was tested at the National Fusion Research Center (NFRC) to verify the design and manufacturing engineering and to ensure reliable operation. The CSMC reached 8.6 T at 20 kA DC operation successfully. We also assessed the AC loss of the CSMC by means of both a sinusoidal wave with a DC offset as well as a triangular pulse. We derived a friction factor correlation of CSMC at room temperature and at cryogenic temperature (4 6 K). We also investigated the variation of the friction factor during current charging. The KSTAR PF coil simulation code was validated with inlet and outlet helium temperature, mass flow rate, and pressure drop from the experimental results. The operation temperature margin of the CS1 coil of KSTAR was calculated with the revised KSTAR PF coil simulation coil.

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“…T HE FIRST goal of Samsung Superconductor Test Facility (SSTF) [1] is to test short samples of the cable in conduit conductor (CICC) for the Korea Superconducting Tokamak Advanced Research (KSTAR) magnets with fast varying electromagnetic disturbances. The CICC short samples will be tested using the background 8 T magnet [2] at the ramp rate up to 3 T/s.…”

Section: Introductionmentioning

confidence: 99%

The comparison of active and passive cancellation coils for SSTF

Baang

Baek

Chu

et al. 2002

IEEE Trans. Appl. Supercond.

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The Samsung superconductor test facility (SSTF) at SAIT (Samsung Advanced Institute of Technology, Taejon, Korea) is to be equipped with a 740 mm inner diameter superconducting split magnet (MC), which provides the background field 0 = 8 T with ramp rate up to 3 T/s at 250 mm gap between the magnet halves. A smaller superconducting split magnet (BC) with the diameter 400 mm will be installed coaxially inside of MC to produce an additional fast variation of magnetic field with ramp rate up to 20 T/s and amplitude 1 T. In order to reduce the coupling between MC and BC magnets and to avoid the MC disturbance by the fast changing stray field from BC a cancellation coil (CC) is to be provided. The comparison of an active superconducting CC charged in series with BC and a passive cryoresistive, LHe cooled CC (PCC) of which the current is induced during the fast BC discharge only has been made. The advantages of the PCC concept are discussed. The amount of LHe evaporated by PCC (charged for a short time) is estimated to be 3 to 5 liter/pulse. Recovering time for PCC is 5 to 10 min.

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The test facility for the KSTAR superconducting magnets at SAIT

Cited by 17 publications

References 1 publication

Development of a cryogenic DC transformer using for the measurement of large current

Development of a cryogenic DC transformer using for the measurement of large current

Analysis of the KSTAR Central Solenoid Model Coil Experiment

The comparison of active and passive cancellation coils for SSTF

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