• Electrical & Electronic Materials
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• v.19 no.4
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• pp.21-29
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• 2006

• JOURNAL OF ELECTRICAL WORLD
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• s.350
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• pp.11-16
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• 2006

• Electric Engineers Magazine
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• s.366
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• pp.54-55
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• 2013

IT인프라 전문기업인 LG엔시스는 중대형 리튬폴리머전지를 이용한 UPS용 토털 솔루션 'Sopra UPB'를 출시했다. 'Sopra UPB'는 LG화학의 리튬폴리머전지와 LG엔시스의 인프라관리 기술이 합쳐진 토털 UPS전지 솔루션으로 모든 IT인프라 제품과 서비스 환경에 대한 신속한 장애해결과 효율적인 운영관리를 통해 고객 정보화 경쟁력을 강화하는 것을 목표로 하고 있다.

• 전기의세계
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• v.24 no.1
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• pp.70-74
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• 1975

A model computer is designed and using this model computer it is demonstrated that computable functions are equivalent to recursive functions. It is also shown that iteratively defined computable functions can be transformed to recursively defined computable functions and that recursive programming is possible in principle, when iterative programming is possible.

• Proceedings of the KIEE Conference
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• 1998.07c
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• pp.1235-1237
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• 1998

Spacer Dampers must be carefully designed and tested. Because it can protect conductors from conductor oscillations due to winds and electrical forces. If the spacer damper has any problems in itself, it may cause extensive damage to the transmission lines. This paper suggests a design method and considerations of spacer damper for bundled conductor transmission lines.

• The Journal of the Korea Contents Association
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• v.11 no.3
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• pp.108-115
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• 2011

This paper informs the standard guideline of electrical inspection for the University laboratories and R&D institutes. A routine electrical inspection is there to prevent an electric shock and electrical fire accident in the Lab. The main issue of this paper is to check the problem of a routine electrical inspection and this paper provides a detailed guideline of a checklist for the Lab which do not have detailed instruction. It mentions the standard model of an effective routine inspection to upgrade the weak electrical environment in the Lab. One of the main purposes of this paper is to develop a routine checklist to control the electrical environment in the Lab. The evaluation checklist we develop will then be applied to every Lab. Introducing an electrical safety checklist builds a clear standard guideline for a real safety check. This will be used as a regular routine check-up for every Lab. The goal of this paper is to enforce safety from electrical accidents in the lab and it will provide safety guidelines for every Lab.

• Proceedings of the KIEE Conference
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• 2007.11b
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• pp.294-295
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• 2007

The importance of security is increased in power industry. Recently Power IT networks are attacked in cyber space and demage of attack become increased. For solving the problems, many research studies for network security enhancement are globally carried out in the world. In this paper, we introduce recent cyber attack cases, efforts for enhancing cyber safeness and put into perspective of potential security areas for power IT areas.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2002.11a
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• pp.343-347
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• 2002

This paper analyzed the effect of breakdown electric current and it establishes a countermeasure that objective of the place where it put when with protection method which is applied from the existing electric railroad power supply system and where the protection method which is applied in the newly electrified system. Will reach and in order to attain simulation it did a actual power supply system and it analyzed that result.

• Proceedings of the KIEE Conference
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• 1999.07f
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• pp.2789-2791
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• 1999

This paper deals with the design of the HPS electronic ballast, which consists of the ignitor for turning-up and the resonant converter for driving the lamp. Also it contains Power Factor Controller to improve the electronic efficiencies such as power factor, crest factor, low distortion, etc. To make this circuit, it is necessary to simulate it on the computer before we implement it actually. In this paper, we try to modelize the HPS lamp and ballast, and have experiments with 150 watt-HPS lamp from Kwangjunsa.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.205-206
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• 2008

Electrical Power System is very important infrastructure in the country. The functions of control, monitoring and so on in the electrical power system are implemented by information technologies(IT) through cyber space. Recently, many activities for enhancing cyber security in the world. In this paper, we introduce the study tendency of cyber security in power IT areas.