The study on stress-cone based on HTS cable terminal

Wu, Chuanjian; Fang, Jin; Huang, Xiaohua; Lu, Wanwan; Li, D.; Guo, Lucun

doi:10.1016/j.physc.2012.03.025

Cited by 7 publications

(4 citation statements)

References 10 publications

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“…The field enhancement at the cable end produces surface and external discharges in the air, which can be prevented by using properly designed terminations [1,9,10,14]. In this sense, arrangements with different characteristics were studied by [12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the studies that have dealt with the electric field distribution in high-voltage cable terminations apply commercial software based on the finite element method (FEM) for the purpose of analysis and/or design of terminations, joints, or stress relief cones. In [12,15,16], simulations were used to assist in the design of stress cones based on high-temperature superconductors (HTS). The authors of [16] proposed the use of an epoxy/ZnO conductive layer to improve the electric field distribution.…”

Section: Introductionmentioning

confidence: 99%

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Design of Cable Termination for AC Breakdown Voltage Tests

et al. 2019

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International standards prescribe overvoltage tests to evaluate the insulating material performance of high-voltage cables. However, it is difficult to manage the electric fields at the cable ends when laboratory measurements are carried out because surface and external discharges occur at the cable termination. Therefore, this paper presents a procedure for designing cable terminations to reduce the electric field at the cable ends to appropriate levels even in the case of overvoltage tests. For this purpose, computer simulations of electric field distribution using the finite element method (FEM) were performed. A 35 kV cable model was employed as a sample. An voltage with RMS (root mean square) value of 300 kV was used as an overestimate of breakdown voltage for the internal insulating material. The cable termination model obtained through the proposed methodology allows an electric field reduction in air, preventing the occurrence of external discharges, and thus permitting the breakdown voltage measurement of the cable’s inner insulation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of Cable Termination for AC Breakdown Voltage Tests

et al. 2019

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“…That is, a YBCO tape is capable of achieving a higher self-field critical current, which has been a promising candidate for HTS terminals [1], [2]. Superconducting strip applications have been also widely recognized, e.g., superconducting cables, superconducting transformers, superconducting fault current limiters, superconducting fusion devices, and superconducting magnetic energy storage systems have been already applied in power systems [3]- [7].…”

Section: Introductionmentioning

confidence: 99%

“…In north China, approximate statistics show that the transmission losses generated in the process of current transmission are about 7%-8% of the total transmission capacity, reaching up to 200 billion kWh [1]. Many countries in the world have carried out the products of superconducting cables [8]- [12].…”

Section: Introductionmentioning

confidence: 99%

On Prefabricated Stress Cone for HTS Cable Termination

Fang

Huang³

et al. 2015

IEEE Trans. Appl. Supercond.

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The high-temperature superconducting (HTS) cable terminal has been rapidly improved in recent years. One of the hotspots in the HTS field is the prefabricated stress cone, which is widely recognized for its advanced processing technology that brings high insulation resistance and structure compactness. Aiming at designing a robust HTS terminal, an equivalent circuit model of a 35-kV prefabricated stress cone is established. Then, we concentrate on analyzing and optimizing parameters such as the stress cone length and the insulation thickness that affect the electric field distribution with ANSYS. Furthermore, a real 35-kV stress cone is constructed for an insulation performance test. The rationality and feasibility of the prefabricated stress cone design are verified.Index Terms-ANSYS, high-temperature superconducting (HTS) cable terminal, insulation test, parameter optimization, prefabricated stress cone.

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Improving Electric Field Distribution in HTS DC Cable Terminals by Nonlinear Conductive Epoxy/ZnO Composites

Zhu

Yang

et al. 2018

2018 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

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The study on stress-cone based on HTS cable terminal

Cited by 7 publications

References 10 publications

Design of Cable Termination for AC Breakdown Voltage Tests

Design of Cable Termination for AC Breakdown Voltage Tests

On Prefabricated Stress Cone for HTS Cable Termination

Improving Electric Field Distribution in HTS DC Cable Terminals by Nonlinear Conductive Epoxy/ZnO Composites

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