• JOURNAL OF ELECTRICAL WORLD
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• no.12 s.144
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• pp.18-23
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• 1988

• Proceedings of the KIEE Conference
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• 1989.07a
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• pp.246-250
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• 1989

Owing to the rapid development of economy and the higher living standard of people, electricity demands have growth and the peak load has been increased rapidly. To cope with this impacts and to reduce the cost of service,utilities are conserned about power load management program. This paper shows a scheme of power load control and the basic structure of direct load control system. And also radio control method using the public pager which is one of the best economical and serviceable method in techniques will be introduced briefly.

• Journal of the Korean Society of Safety
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• v.32 no.6
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• pp.16-21
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• 2017

Fire or electrical problem while DC electric traction vehicle operation caused by various reasons can lead to not only suspension of the operation, but also severe aftermath such as massive casualty. In this paper, fire analysis on DC electric traction vehicle caused by electrical breakdown on line breaker, which is in connection with the power supply, is presented. When the electric arc, the by-product of frequent line breaker operation, is not fully diminished, it leads to electrical breakdown and fire. Especially, electrical breakdown can be easily induced by the open-and-close operation of inner contractor inside line breaker, eventually followed by ground fault and generation of transient current. Electric arc is consequent on the ground fault and acts as possible ignition source, leading to fire. Also, during the repetitive operation of the line breaker, the contactor is separated each other and some copper powder is generated, and the copper powder provided breakdown path, resulting in fire.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.22 no.1
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• pp.79-86
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• 2008

Domestic and foreign follows the trend which is that safety checkup of electrical facilities is serviced by on-line system with joining information technology. This paper research improvement of what kind of system and law for market environment of electric power value added service. For improvement of market environment of electric power value added service, this paper researches improvement of on-line monitoring system and necessity of arc interruption and revision of arc related law.

• Proceedings of the KIEE Conference
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• 2006.07a
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• pp.119-120
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• 2006

전력산업이 공급자중심에서 고객중심의 비즈니스 서비스산업으로 변함에 따라 고객의 요구충족을 위한 고기능 전력정보서비스의 필요성이 점차적으로 증대되고 있다. 또한 검침데이터 단순제공에서 정보, 지식 등 특화된 분석정보 제공은 필수 불가결한 요소가 되고 있다. 따라서 현재 적극적으로 추진되고 있는 전력부가서비스 시스템 개발에 효과적으로 활용될 수 있으며 고객서비스를 한 차원 높이기 위한 전략적인 시스템이 필요하다 하겠다. 본 논문은 원격검침 고압고객을 대상으로 대용량 검침데이터(168억 Point/년, 12만 고객 15분 전력사용량)의 실시간 처리기능과 다양한 전력정보(고객기본정보, 15분 전력사용량 분석정보, 전력수요누적정보, 부하지속정보 등)를 인터넷을 통해 제공하는 고객마케팅 서비스 기반을 위한 통합관리시스템 구축 연구를 수행하였고 이를 소개한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.695-698
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• 2005

최근 국외의 전력회사들은 미래 디지털 사회의 기반이 되는 신전력시스템을 구현하는데 필요한 핵심기술중의 하나로서 IT(Information Technology)기반 전력부가서비스 기술의 중요성에 대해 강조하고 있으며, 이를 위해 원격검침 데이터를 기반으로 하는 다양한 전력부가서비스를 개발하여 적용하고 있다. 한편 국내의 경우 원격검침 데이터는 전력요금 산출용도로 활용되고 있는 수준이다. 전력회사는 원격검침 데이터가 고객과의 관계에서 부가가치를 높일 수 있는 무한한 잠재력을 지닌 전략적인 자산으로 보고, 원격검침 데이터 가공 및 활용기술의 선진화를 통하여 전력회사와 전력소비자 모두에게 필요한 전력부가서비스의 적용이 필요하다. 본 논문에서는 국내 전력산업 환경에 적합한 새로운 전력부가서비스 적용방안으로 제안한 전력 에너지 컨설팅 서비스에 대해 소개하고자 한다. 본 논문에서 제안한 전력부가서비스의 적용은 전력소비자 측면에서는 요금절감 효과가 전력회사 측면에서는 부하 수요관리 및 투자비 절감 효과가 예상된다.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.300_301
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• 2009

765kV Transmission line is retained and operated by KEPCO(Korea Electric Power Corporation), and KPS(Korea Power Plant Service & Engineering) has been taking charge of maintenance service. KPS is doing characteristic maintenance and inspection for 765kV lines for example preventive patrol, routine patrol(every 6-month), and close inspection(every 5-year), This paper presents the optimum maintenance methods and the related standards for 765kV line. This result will use to stabilize of 765kV lines.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.21 no.4
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• pp.45-52
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• 2007

Electric power is an important element in any modern economy. The availability of a reliable power supply at a reasonable cost is important for the economic growth and development of a country. Electric power utilities throughout the world therefore strive to meet customer demands economically with high quality and reliability. As the power industry moves towards open competition, therefore, there has been a call for a methodology by which to evaluate power system reliability through the use of customer interruption characteristics. This paper presents the results of an investigation and analysis of interruption characteristics of an industrial customer in Korea. This study used a direct visit survey to determine the investigation and analysis of electric service quality and the characteristics of industrial customers in Korea. A customer survey conducted throughout Korea via personal interviews of 660 sample customers is presented here. Variation according to characteristics of interruption such as duration, time of day, frequency and day of interruption was also investigated

• Journal of information and communication convergence engineering
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• v.3 no.2
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• pp.101-104
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• 2005

Recently advanced countries are making every effort to promote the efficiency of electric power production and supply, to deal with the environmental problems, and to develop the new energy. In particular, they are driving forward to develop various technologies for electric power in mid-long term, that are technology for building infrastructure of power transportation, establishing service network for account management using electronic technologies, elevating economic productivity by innovative electronic technologies, control-ling the discharge of global warming gas, using clean efficient energy, and so forth. However, power technology of Korea lagged behind than technology of advanced countries. Also, resources for developing power technology are limited in our country. Therefore, it is necessary to improve the efficiency of R&D investment. For it, our country must compare and analyze with technologies of advanced countries which are taking competitive advantage in the main future energy. Through comparative analysis, limited R&D resources of our country must be concentrated on technologies that can secure competitive advantage from now on.

• Proceedings of the KIEE Conference
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• 2001.11b
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• pp.77-82
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• 2001

As electric power systems have been moving from vertically integrated utilities to a deregulated environment, the charging of reactive power management is a new challenging theme for market operators. This paper proposes a new methodology to compute the costs of providing reactive power management service in a competitive electrical power market. The proposed formulation, which is basically different from those shown in the literature, consists of two parts. One is to recover investment capital costs of reactive power supporting equipment based on a reactive power flow tracing algorithm. The other is to recover operational costs based on variable spot prices using the optimal power flow algorithm. The charging shapes resulted from the proposed approach exhibit a quite good meaning viewed from a practical sense. It turns out that reactive power charges are mostly due to recovery of capital costs and slightly due to recovery of operational costs. The method can be useful in providing additional insight into power system operation and can be used to determine tariffs of a reactive power management service.