• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1994년도 하계학술대회 논문집 A
• /
• pp.106-109
• /
• 1994

The object of this study is to propose the simplified power demand control system which is appliable to existing buildings or new buildings. Through the technical survey and power demand analysis in office buildings, the electric facilities which can be controlled are selected. Power demand control program can be controlled the electric facilities in order, and displayed the facility operation state. The proposed power demand control system is cost-effective and flexibly adoptable in system upgrade or retrofit.

• 조명전기설비학회논문지
• /
• 제15권1호
• /
• pp.112-117
• /
• 2001

본 논문은 전력설비 피해 감소를 위한 배전시스템의 지능형 재폐로방식을 제안하였다. 재폐로 시도횟수를 늘릴수록 공급신뢰도는 향상될 수 있지만, 전력설비에는 사고전류에 의한 충격이 누적된다. 제안된 방식은 사고전류의 크기에 따라 재폐로 시도횟수와 무전압시간을 결정하여 배전시스템 공급신뢰도를 유지하면서 전력설비의 피해를 감소시킬 수 있다. 사례연구에서는 현장 운전 데이터를 사용하여 제안된 지능형 재폐로방식에 대한 효율성을 입증하였다.

• 한국조명전기설비학회:학술대회논문집
• /
• 한국조명전기설비학회 2008년도 추계학술대회 논문집
• /
• pp.379-382
• /
• 2008

This paper gives the support method of DSM program(power load leveling for heating and cooling facilities on building). As the national power peak load increases recently, the peak load reduction is needed. So we studied about remote controlling of power load from heating/cooling facilities on building during peak times. To adopt new DSM program, it is very important to design DSM customer supporting system. So in this paper, we dealt with the result of customer survey, and the DSM potential regarding heating/cooling facilities on building. In conclusion, the peak reduction program of heating/cooling facilities is very important and the incentive of customer should be consist of two incentive types as an installation and power reduction.

• 한국전기전자재료학회논문지
• /
• 제23권8호
• /
• pp.645-650
• /
• 2010

The continuous increase demand for electric power leads to the additional construction of transmission facilities, but it is not easy to acquire right-of-way for transmission facilities. Therefor, there is a need for compact tower that can be built on a narrow right-of-way the compact tower with polymer insulation arm is a solution. It can be upgrading conventional 154 kV transmission line voltages to 345 kV levels. However transmission voltage is increasing, environment interference (corona noise, radio interference, etc.) will occur gradually. This environment interference is depending on the electrical clearances of tower and configuration of conductors. Therefore the analysis of the factors of environmental interference is necessary in order to upgrading transmission voltage. This paper presents the design factor of a compact tower to meet the environmental interference standard.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1999년도 하계학술대회 논문집 G
• /
• pp.2947-2949
• /
• 1999

The MX-13 digital multiplexer for leased line is one of the main facilities, so it is periodically monitored by the operator. Operators connect dummy terminal to the MX-13 digital multiplexer manually, and execute preventing inspection. When alarms occurred, they are manually checked by the operator. But, in order to get mere efficiency of accident prevention and monitoring facilities with rapid response to the accident symptom, and to get higher reliability from the companies who lease communication lines, we need to construct this system which is adequate to monitor IvlX-13 digital multiplexer in almost real time. We construct remote monitoring system for MX-13 digital multiplxer to meet those requirement. After constructing the system, it's possible that the local operator can manage local monitoring system to check the status of MX-13 digital multiplexers. Also, Center operator can monitor the facility which has problems, and located in the specific local areas with the use of Center monitoring system.

• Current Photovoltaic Research
• /
• 제7권2호
• /
• pp.38-45
• /
• 2019

In this paper, we analyzed the present status of the safety manager and safety assurance aspects through a complex analysis on the operational aspects, marketability and electrical safety aspects of photovoltaic power generation facilities. In the analysis of the equipment status, we analyzed the status and operated status of the installed PV system in Korea and the correlation between the safety manager and the accident. In addition, we analyzed the direction of the ESS through the analysis of the installation status of the ESS, and applied it to the interpretation part of the ESS associated with the solar power generation. The status of the electric safety manager can be used to analyze the data for selecting the electric safety manager by capacity by analyzing the accident status, the electric safety manager operation status, the safety management time by capacity, and the electric safety manager market.

• 한국구조물진단유지관리공학회 논문집
• /
• 제12권1호
• /
• pp.57-64
• /
• 2008

일반적으로 강재시설물에 사용되는 유기에폭시 도장의 경우, 일반적인 조건에서는 우수한 내구성을 보이고 있으나, 송/배전 시설물인 강재전력시설물과 같이 빛(자외선)이나 열에 노출되는 환경에서는 도막자체의 열화현상에 의한 피해가 더욱 심각하게 증가하고 있다. 본 연구의 목적은 무기계 액상 규산질을 기초로 한 강재용 도장제를 개발하는 것이다. 이를 위해 6가지 예비실험을 거쳐서 최적의 배합조건을 도출하였으며, 물리적 특성실험 및 내구성 실험을 수행하였다. 실험결과 개발된 무기계 도료는 현재의 유기계 도료의 성능을 확보하고 있었으며, 내화학성에 대한 저항성이 개선된다면, 강재 시설물의 대체 도료로 사용될 수 있으며, 그 적용성이 더욱 증가할 것으로 평가되었다.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2005년도 제36회 하계학술대회 논문집 A
• /
• pp.772-774
• /
• 2005

Interstate electric power system, as an alternative for energy cooperation under regional economic bloc, has been hotly debated before progressing the restructure in electric power industry and rapidly expanded in many regions after 1990s. Especially, since northeast asia has strong supplementation in resource, load shape, fuel mix etc., electric power system interconnection in this region may bring considerable economic benefits. Moreover, since Korean electric power system has a great difficulty in a geographical condition to interrupt electricity transaction with other countries, it has been expanded as an independent system to supply all demand domestically. As a result, Korean electric power system makes considerable payment for maintaining system security and reliability and expands costly facilities to supply a temporary summer peak demand. Under this inefficiency, if there are electricity transactions with Russia via the North Korea route then economic electric power system operation may be achieved using seasonal and hourly differences in electricity price and/or load pattern among these countries. In this paper, we estimate price cap of transacted electricity via interstate electric power system in northeast asia. For this study, we perform quantitative economic analysis on various system interconnection scenarios.

• 한국정보통신설비학회:학술대회논문집
• /
• 한국정보통신설비학회 2009년도 정보통신설비 학술대회
• /
• pp.115-116
• /
• 2009

Home-network gateway always powered on, while network data is not transferred. And the Power consumption of networked electric devices are greatly increased, to support higher speed data transfer. To reduce the power consumption of networked electric devices, some ideas were proposed. Such as ALR, Proxying, Subset-PHY. In this paper we propose a scheme to reduce power consumption of Home-Network Gateway. Proposed Home-network Gateway architecture consumes less than 1W in passive standby mode.

• 한국인터넷방송통신학회논문지
• /
• 제13권3호
• /
• pp.127-133
• /
• 2013

산업사회의 발전에 필수적인 요소 중의 하나로서, 전력 에너지의 수요는 과학 기술의 발전에 따라 꾸준히 증가해오고 있다. 전력의 수요에 부응하기 위해, 고전압과 대용량을 감당할 전력설비기 필요하다. 튼튼한 바탕 위에서 전력을 생산 공급하기 위해서는 전기 시설은 신뢰성 있게 운전해야 한다. 전력 설비가 사고를 일으킬 경우 막대한 국가적 손실을 초래하게 된다. 국가 기간 산업 시설의 중추적인 기능을 하고 있는 전력 설비는 가능한 안정된 상태를 유지하면서 오랜 기간 동안 운전할 수 있어야 하며, 사고를 미리 예방할 수 있어야 한다. 전력을 전달하기 위한 수단으로서 사용되고 있는 케이블 설계 시 수명을 약 30년으로 간주하지만, 많은 경우의 실제 현장에서는 8~12년 정도에서 파괴 현상이 발생하여 재산상의 큰 피해를 초래한다. 본 논문은 운전 중 22kV 케이블 시스템의 열화 과정에 대한 연구를 통하여 열화의 원인을 파악하였으며, 와이블 분포만 따르는 것이 아니라 열열화 후 와이블 열화를 거쳐 부분 방전에 의하여 케이블이 파괴되는 것을 확인 할 수 있었다.