Novel Design Concept and Demonstration of a Superconducting Gas-Insulated Transmission Line

Cheetham, Peter; Viquez, Jose G.; Graber, Lukas; Kim, Chul Han; Rodrigo, H.; Pamidi, Sastry

doi:10.1109/tasc.2016.2641905

Cited by 12 publications

(6 citation statements)

References 11 publications

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“…In this design the two HTS layers are insulated from each other by a cold dielectric. [5] Liquid Nitrogen coolant contact both layers, providing both cooling and dielectric insulation between the conductor and the outer layer. As compared to the warm dielectric design, it has low inductance, a higher current carrying capacity, it reduces the AC transmission losses, and low stray magnetic fields.…”

Section: Design Of Superconducting Cablementioning

confidence: 99%

Superconducting Cables for Power Transmission

Sushma¹

2019

IJEAST

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Large-capacity superconducting power cables are in the spotlight to replace existing underground transmission power cables for power transmission. The motive for the development of these superconducting power cables is to reduce the transmission losses during the transmission. By comparing the loss components in conventional as well as superconducting cables, it is concluded that high load connections are necessary to obtain energy saving by the use of HTS cables. High temperature semiconductor cables, work for the reduction of the increase of temperature in the conducting cables. High temperature semiconductor, with liquid nitrogen and gaseous helium system enables cable operation which is to reduce the fault in the system. In comparison with the conventional cables, the high temperature conducting cables have merits in small volume, high current density, environmental friendly, safer, no leakage of electromagnetic field outside of the cable, small impedance, low maintenance cost, low frequency of failure which brings a new power transmission system for the future smart grid. The use of ceramic-based HTS in the power transmission system achieves low loss transmission while eliminating resistive losses, supplant copper electrical conductors and more fundamental change to electric power transmission technologies.

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Section: Design Of Superconducting Cablementioning

confidence: 99%

Superconducting Cables for Power Transmission

Sushma¹

2019

IJEAST

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“…It must be noted that much depends on progress in technology that does not involve the physics of SCs per se, like better refrigeration systems, better thermal rejection, and better normal-SC terminations. For example, the usual refrigeration system based on liquid Nitrogen is not acceptable on a ship because of asphyxiation hazards, thus a system based on Helium gas has been proposed [31][32]. Of course, any new development in the area of SC materials proper will be welcome, and the field has demonstrated repeatedly the ability to make quantum leaps forward.…”

Section: Use Of Superconductors Aboard Navy Shipsmentioning

confidence: 99%

Electrical and thermal system considerations for MVDC superconducting distribution on navy ships

Hebner

Gattozzi

Strank

et al. 2017

2017 IEEE Electric Ship Technologies Symposium (ESTS)

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Abstract-The interest in using a superconducting (SC) distribution grid on a ship designed with a medium voltage dc (MVDC) system is a natural one, because superconductors (SCs) perform at their best under dc power. The potential advantages could be reduced losses, smaller cable plant size, and an electrically stiffer power bus. However, the use of SCs, does not eliminate losses completely and requires additional ancillary equipment. This paper provides an initial assessment of the potential benefits accrued from its adoption compared to any additional overhead, residual losses, and risk associated with a brand new shipboard system.

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“…In recent years, high temperature superconducting (HTS) power cables have become preferable over conventional cables in serving the increasing electric demand [1]. High power density provided by the HTS power cables substantially reduces the weight and volume of electric power system.…”

Section: Introductionmentioning

confidence: 99%

“…Gaseous helium (GHe) is used as a coolant in HTS systems owing to its extended operating temperature range [3]. In the gas-cooled HTS power cable, lapped tape is commonly used for electrical insulation [1], [2], [4]. Lapped tape insulation is helically wrapped around the cable and butt gaps are introduced to avoid mechanical stress.…”

Section: Introductionmentioning

confidence: 99%

Epoxy Electret: A Remedy for Partial Discharge at Cryogenic Temperature

Haque

Park

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Epoxy-based composites exhibit mechanical compatibility at cryogenic temperatures. Owing to these properties, composites based on epoxy are used as electrical insulators in high temperature superconducting (HTS) power applications. However, the inevitable presence of voids in solid insulators, triple points, and airgaps at high-voltage conductor-insulator interfaces increase electric fields locally. The intensified electric field around these defects and interfaces is the main cause of partial discharge (PD), which is a dielectric challenge for numerous power applications including HTS cables. Recently, electret has been introduced as a promising solution to mitigate PD activities caused by voids and triple points. In this work, we intend to report the PD mitigation performance of electrets fabricated from epoxy resin, which is suitable for cryogenic power applications.

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Novel Design Concept and Demonstration of a Superconducting Gas-Insulated Transmission Line

Cited by 12 publications

References 11 publications

Superconducting Cables for Power Transmission

Superconducting Cables for Power Transmission

Electrical and thermal system considerations for MVDC superconducting distribution on navy ships

Epoxy Electret: A Remedy for Partial Discharge at Cryogenic Temperature

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