The insulation design for transmission class HTS transformer with continuous disk winding

• Published in: Physica. C, Superconductivity Vol. 463-465; pp. 1218 - 1222
• Main Authors: Cheon, H.G., Kwag, D.S., Choi, J.H., Kim, S.H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.2007; Elsevier Science
• Subjects: Applied sciences; Barrier; Electrical engineering. Electrical power engineering; Exact sciences and technology; HTS transformer; Insulation design; Transformers and inductors; 77.22.Jp; 85.25.Am; Barrier; HTS transformer; Insulation design; Design; Winding; Electric insulating material; Barrier; Insulation design; HTS transformer; Superconducting transformers; High temperature superconductor; 85.25.Am; 77.22.Jp
• ISSN: 0921-4534; 1873-2143
• DOI: 10.1016/j.physc.2007.03.484

In the response to the demands for electrical energy, much effort aimed to develop and commercialize HTS power equipments have been made around the world. Among them HTS transformer is one of very promising one. In Korea, companies and universities are developing a power distribution and transmission class HTS transformer that is one of the 21st century superconducting frontier projects. The composite continuous disk winding of transmission class HTS transformer is concentrically arranged H1–L–H2 from center. For the development of transmission HTS transformer with continuous disk winding, the cryogenic insulation technology should be established. We have been analyzed insulation composition and investigated electrical characteristics such as the breakdown of LN2, barrier, kapton films, flashover on FRP in LN2. We are going to compare with measured each value and apply the value to most suitable insulating design of the HTS transformer.