복합고체절연물의 극저온 절연성능 평가를 위한 임펄스 내전압시험 = Impulse Tests for a Composite Solid Insulator for High Voltage Superconducting Power Applications

다국어 초록 (Multilingual Abstract)

High voltage insulation in cryogenic environment is one of big issues for development of superconducting power application, such as superconducting fault current limiter, transformer, transmission cable, and so on. We had proposed a composite solid insulator composed of plastics and polymer insulation sheets for a use of high voltage superconducting power applications. It is well known that the G10 FRP keeps its mechanical strength at very low temperature and the PPLP is very good insulator adopted as insulations for superconducting transmission cables. The composition of these two materials will show very good electrical and mechanical properties adequate for the insulation components of superconducting power applications, such as bushing, insulation barrier, and even for a cryostat. Dielectric strengths of prepared samples were measured at the temperature of boiling point of liquid nitrogen at atmospheric pressure, which will be presented in this paper to show a usefulness of this technique.

참고문헌 (Reference)

1 나진배, "액체질소를 사용하는 초전도 고전압 전력기기의 절연 특성 연구" 한국초전도.저온공학회 13 (13): 46-50, 2011

2 백승명, "고온초전도 기기를 위한 극저온 액체 중 절연 물의 전기적 특성" 263-264, 2006

3 D.S. Kwag, "Research on the insulation design of a 154 kV class HTS power cable and termination" 17 (17): 2007