Status of warm dielectric cable installation at Detroit Edison

Spreafico, S.; Bechis, Massimo; Caracino, P.; Cavalleri, G; Coletta, G.; Corsaro, P.; Ladiè, Pierluigi; Nassi, M.; Kelley, N.

doi:10.1016/s0921-4534(02)01085-7

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…In a US cable project, Southwire installed a 30-m 3-phase cold dielectric cable system (12.5 kV, 1250 A rms , 27 MVA) which is still in test operation since February 2000 [57]. In another US cable project, a 3-phase 120 m cable system has been installed in a power station [72] but severe problems with damage of the flexible cryostat of the warm-dielectric type cable have prevented until now operation of 2 of the 3 phases. Recently, two 300 m HTS cable projects have been approved in the US which are planned to be installed in electricity distribution systems in 2005 [73].…”

Section: Power Applicationsmentioning

confidence: 99%

Application Fields of High-Temperature Superconductors

Hott

2004

High Temperature Superconductivity 2

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Section: Power Applicationsmentioning

confidence: 99%

Application Fields of High-Temperature Superconductors

Hott

2004

High Temperature Superconductivity 2

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“…A range of applications has been proposed in the generation and transmission of electrical power. Work to exploit the potential benefits of HTS has already been reported with prototype or commercial design of generators [1], transformers [2,3], current limiters, transmission cables, joints and terminations [4][5][6][7]. Potential benefits of increased power transfer, smaller dimensions or lower voltages offered by HTS cables are attractive to utilities.…”

Section: Introductionmentioning

confidence: 99%

Variable pressure and temperature liquid nitrogen cryostat for optical measurements with applied electric fields

Swaffield

Lewin

Chen

et al. 2004

Meas. Sci. Technol.

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A cryostat with a high-voltage bushing, optical observation ports, variable controlled temperature and pressure has been designed to further the study of liquid nitrogen as a dielectric medium. The novelty in this design lies in the simultaneous achievement of these functions in a single design with a sufficiently large vessel to accommodate realistic geometries for high temperature superconducting power cable termination prototypes. In addition, a commercial single-stage helium expander cryo-cooler is integrated into the apparatus to achieve steady state temperatures down to 63.5 K, without the need for sacrificial loss of liquid nitrogen to maintain vessel temperature. The cryostat inner vessel is certified for operating pressures up to 2 MPa. A custom-made filled-resin bushing provides an electrical feed-through rated to 76.2 kV ac. For optical measurements with a range of sample geometries four optical ports are incorporated into the vessel utilizing sapphire windows and indium seals to form the inner pressure vessel. A technique employing a copper-vapour laser light source and high-speed digital camera for stroboscopic image capture of density change streamers and bubble dynamics with synchronized collection of electrical discharge data has been developed. This design has been used to study pre-breakdown phenomena, bubble dynamics with applied electric fields and electrical breakdown. General construction, mode of operation and initial results are presented.

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Status of warm dielectric cable installation at Detroit Edison

Cited by 2 publications

References 3 publications

Application Fields of High-Temperature Superconductors

Application Fields of High-Temperature Superconductors

Variable pressure and temperature liquid nitrogen cryostat for optical measurements with applied electric fields

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