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이승렬(Seungryul Lee),황인태(Intae Hwang),윤재영(Jaeyoung Yoon),양병모(Byongmo Yang) 대한전기학회 2012 대한전기학회 학술대회 논문집 Vol.2012 No.5
The superconducting dc cable is projected to have greater reliability and security, substantially lower losses, a smaller right-of-way footprint, fewer siting restrictions, and the ability to be terminated at distribution voltages in or near load centers. This paper presents some cases that DC superconducting power cable can be applied to a real power system.
이승렬(Seungryul Lee),황인태(Intae Hwang),윤재영(Jaeyoung Yoon),양병모(Byongmo Yang) 대한전기학회 2012 대한전기학회 학술대회 논문집 Vol.2012 No.5
This paper proposes a new adaptive protection algorithm to apply the SFCL to a real power system. The proposed algorithm considers the impedance change of the power system with the SFCL in a fault condition.
김종우,이승렬 국립중앙박물관 2013 박물관보존과학 Vol.14 No.-
국립경주박물관 옥외전시장의 장항리 석조불입상은 외부환경에 의한 접합물질의 풍화와 표면 오염물의 고착, 암석의 편하중에 의한 균열 등의 문제점으로 인해 소장품의 안전한 관리를 위한 해체 및 복원작업을 진행하였다. 3D 정밀실측을 통한 도면화 및 기초자료 조사, 풍화된 부분의 시멘트몰타르 및 수지를 제거하였다. 복원부분은 동종의 암석을 사용하여 신석을 제작하여 접합·복원하였다. 또한 미생물의 피해를 방지하기 위하여 훈증처리를 실시하였으며 지속적인 관찰을 진행 중에 있다. Disassembly and restoration work of Janghang-ri Stone Standing Buddha in the outdoor exhibition hall of Gyeongju National Museum were conducted for safe management of the collection due to problems like weathering of bonding materials by the outer environment, fixation of pollutants on the surface, and cracks by unidirectional load of rocks. A drawing was made through three-dimensional precise actual measurement, basic material research was conducted, and cement mortar and resin of the weathered part were removed. The restored part was bonded and restored by new stones using the same kind of rock. In addition, in order to prevent damages from microorganisms, fumigation treatment was made. It is under continuous observation.