Test results of a 30 m high-tc superconducting power cable

Mukoyama, S.; Hirano, Hironobu; Yagi, Masayuki; Kimura, Hitoshi; Kikuchi, A.

doi:10.1109/tasc.2003.812955

Cited by 11 publications

(4 citation statements)

References 2 publications

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“…This cable was designed based on the test results of 30 m-model cable [7]. Its outer diameter is in 133 mm.…”

Section: A Specification Of Super-ace Hts Cablementioning

confidence: 99%

“…By this pulling, the heat insulating vacuum gap is forced to be eccentric, which increase its heat invasion. The heat invasion of straights section is expected to be less than 1 W/m, but the heat invasion of 5 m radius section should increase more than 1 W/m [7]. The average heat invasion of the 500 m cable will be expected 2 W/m under the conditions of bending radius of 5 m and tension of 2 kN, which are specified to design the HTS cable from the previous test results.…”

Section: A Specification Of Super-ace Hts Cablementioning

confidence: 99%

“…The oil stations of OF cables are built at every 5 km and the maximum distance between manholes is about 500 m in the ex- isting Japanese power system [7]. Since the refrigeration station has to be built at every 5 km, we construct a HTS cable test system with 500 m length which is long enough to estimate the flow properties of the liquid nitrogen such as pressure losses and fluid vibration in the cooling tube with actual length of several kilometers.…”

Section: B Cooling Systemmentioning

confidence: 99%

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R & D of Superconductive Cable in Japan

Kimura¹,

Yasuda²

2005

IEEE Trans. Appl. Supercond.

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Super-ACE (Superconducting AC Equipments) project was started in 2000 fiscal year as a national project to research and develop superconducting AC power equipment. This project goal to develop basic technologies for high temperature superconducting (HTS) cable, HTS fault current limiter (FCL), HTS magnet for reactor and transformer. Main subjects of the cable study are development of: HTS conductor having 3 kA rated current with 1 W/m AC loss, cooling technologies for a 500 m HTS cable with 1 kA rated current, and analytical study of integrated HTS power system. This paper describes major results of studies on the HTS superconductors, and outline and some results of verification test of 500 m cable.

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“…This cable was designed based on the test results of 30 m-model cable [7]. Its outer diameter is in 133 mm.…”

Section: A Specification Of Super-ace Hts Cablementioning

confidence: 99%

Section: A Specification Of Super-ace Hts Cablementioning

confidence: 99%

Section: B Cooling Systemmentioning

confidence: 99%

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R & D of Superconductive Cable in Japan

Kimura¹,

Yasuda²

2005

IEEE Trans. Appl. Supercond.

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“…The presented considerations can be useful when analyzing structures with nonlinear conductive regions like for example high-temperature superconductors: this includes cable design with superconducting tapes covering linear conductors [4,5]. To reduce the description of the problems, which are solved in a similar way (linear, cylindrical symmetry), Lamé coefficients L u , L v , L w are applied and the orthogonal curvilinear coordinate systems are denoted with the coordinates u, v, w. Changes in the field are assumed to occur only along u and time.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear boundary condition in electromagnetic theory – analytical scheme of formulation

Sowa¹,

Spałek²

2013

Archives of Electrical Engineering

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The paper presents a method of how the nonlinear boundary condition [1] may be applied in nonlinear problems of electromagnetic field theory. It is introduced for problems with nonlinear conductivity. An analytical procedure has been constructed, which seeks to reduce calculations related with the nonlinear region. In order to verify the proposed solutions, two problems have been formulated: one of linear and the other of cylindrical symmetry. These have been additionally solved by the authors’ modification of the perturbation method that has been described in previous papers [7, 8, 10]. The electromagnetic field distribution obtained thereby has served as a referential result since it can obtain very accurate solutions [10]. Relative errors of electric and magnetic field strength are introduced to verify the results.

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