Abstract
At the end of July 2004, DAPAS (development of the advanced power system by appliedsuperconductivity technologies), which is a 10 year long programme, finished the first ofthree phases. As a result of the first phase, a process for a metre long coated conductor andthe core technologies of the distribution line voltage class high temperature superconductor(HTS) power systems including cables, transformers, fault current limiters (FCLs), andmotors have been developed. The ultimate goal of the HTS cable project is to develop1 GVA class HTS transmission cables. During the first phase, a three-phase 50 MVA/22.9 kVclass HTS cable of 30 m length has been developed and tested successfully; it hasbeen installed by LS Cable Ltd. In the second phase, grid-connected HTS cableswill be developed and established in the real utility line. In case of FCLs, therewere two types of FCL developed during the first phase: a reactive type and aresistive type. Both types had the same project targets with the specification of6.6 kV/200 A for three-phase, and entered the second phase with the target of a 22.9 kVclass. In the case of the HTS transformer project, a 1 MVA/22.9 kV class wasdeveloped, and after the second phase this project will be considered for practicalapplication. Technically, the optimal design and the manufacturing technologies of HTStransformers as well as the analysis tools of electromagnetic field in the transformer weredeveloped. Furthermore, a 100 hp class motor has been developed so that the keytechnologies for the utilization of superconducting motors could be obtained. Thedeveloped motor consists of Bi-2223 field coils of 100 A operating current at 30 K and aclosed-loop cooling system, the results of which will lead us to develop 1 and 5 MVAmotors in the second and third phase, respectively. In the case of the coatedconductors (CCs) programme, a batch-type co-evaporation process and a reel-to-reelpulsed laser deposition process gave us 10 m long CC tapes in February 2005. Weexpect that 100 m long or longer CC will be developed during the second phase.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
