• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2005.10a
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• pp.373-376
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• 2005

In recent years, there has been a growing need fur productivity improvement of ACS wire (Aluminum clad Steel wire) In optical communication market. So, it is necessary to improve the production speed and following quality of ACS wire to reduce the unit cost of the products. In this study, the pre-heating temperature and cladding speed is chosen as the factors can influence the mechanical and metallurgical properties during cladding, and the changing behavior of mechanical property and microstructure by controlling above two factors are investigated. And the bearing length and approach angle in cladding die are selected as the important elements for designing optimum die enabling high speed cladding. So we carried out FE(Finite Element) analysis using the above two elements as variables. This paper aims to understand the change of mechanical properties and microstructure according to the change of each factor during cladding and suggest the optimized cladding condition to get the best quality of OPGW. And also we would like to introduce the optimum die structure that enables high-speed cladding.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.139-140
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• 2011

스마트그리드 통신망은 발전, 송전, 배전, 소비자 등의 각 도메인들이 상호운영성을 확보할 수 있도록 시스템과 시스템, 시스템과 단말, 단말과 단말간에 유무선 통합통신망을 구축하는 것이다. 현재 제주도 실증단지 스마트그리드 통신망은 기존 송전선로 OPGW와 4개 배전선로에 첨가 광케이블을 이용하여 각 시스템이 연계될 수 있도록 구축했다. 이에 현재 설치된 현황을 살펴보고 미래 스마트그리드로 가기 위한 통신망 구축과 운영방안을 제시하고자 한다.

• Proceedings of the KIEE Conference
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• summer
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• pp.433-435
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• 2004

본 논문에서는 기존의 가공지선(GW, Ground Wire)을 OPGW(Optical Ground Wire)로 교체공사를 할 경우 나타나는 절연로프에서의 건조대 아크현상을 수치적인 모델링를 통하여 해석할 수 있는 프로그램을 제작하고 현장조건을 입력하여 문제점을 판단하고 해결할 수 있는 방안을 제시하고자 한다.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.60 no.6
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• pp.1122-1127
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• 2011

The thesis here by shows that the extant suspension wire, which is stretched between electric poles to support a variety of communication wires, can be replaced by specially-redesigned cables called OPSW(Composite Suspension Wire with Optical Fiber) which have been devised for the first time in the world so that the functions of both communication and support can be united into one cable which is sure to be successfully installed on site, hence leading to outstanding effects that it can sharply reduce the load applied to electric poles as well as the cost of forthcoming constructions and that it can accordingly make a great contribution to the building of Smart Grid network.