• Electric Engineers Magazine
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• s.323
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• pp.12-13
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• 2009

협회는 임원 지회장 대의원의 친교와 단합을 도모하고, 참여의식을 제고함은 물론 협회의 리더그룹으로서의 책임의식과 봉사정신을 드높이기 위해 2009. 6. 5(금)$\sim$6(토) [1박 2일간] 속리산 유스타운에서 "전국 대의원[임원 지회장 대의원] Work-Shop"을 개최함.

• Proceedings of the KIEE Conference
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• 2005.07e
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• pp.43-45
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• 2005

Electric accidents, like getting electrified, sometimes happen to people working on electricity. A highly probable reason why these electric accidents happen is that workers are used to skip confirming disconnection of electricity when they work. It is mostly because they have little understanding of electricity. To overcome this, various applications such as 'electric detecting stick' are invented to check existence of electricity on working environment. But, they have not been popular due to inconvenience of carrying. So, we made a new instrument. It is a kind of nipper on which electric detecter is installed. Detecting existence of electricity is less burdensome via this tool we made.

• Proceedings of the KIEE Conference
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• 2005.10a
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• pp.158-160
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• 2005

Electric accidents, like getting electrified, sometimes happen to people working on electricity. A highly probable reason why these electric accidents happen is that workers are used to skip confirming disconnection of electricity when they work. It is mostly because they have little understanding of electricity. To overcome this, various applications such as I electric detecting stick' are invented to check existence of electricity on working environment. But, they have not been popular due to inconvenience of carrying. So, we made a new instrument. It is a kind of nipper on which electric detecter is installed. Detecting existence of electricity is less burdensome via this tool we made.

• Proceedings of the KIEE Conference
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• 2003.07d
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• pp.2349-2351
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• 2003

Over the past $2{\sim}3$ years power utilities have shown a marked change in attitude by an ever increasing interest in using relay communication features. As yet there is no accepted international standard for communication protocol in automation systems. Recent work within the UCA work group has resulted in the proposal, UCA 2.0, as the informative interface for automation systems. This proposed standard embodies the generic principles developed and used within generic protocol. This paper describes and analyses various communication protocols for automation systems in electric power companies.

• Proceedings of the KIEE Conference
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• 1999.07c
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• pp.1456-1458
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• 1999

As the system reliability of power supply is highly increased, we need distribution maintenance techniques without any power interruption. To meet such an increasing demand, a groat deal of hot line work on the high voltage overhead distribution lines has been carried out. In this regard, Hot line work techniques has being applied widely. However, hot line work techniques can not cover all kinds of work without interruption. To cope with those problems, the temporary power supply work technique such as bypass cable truck technique, temporary switch technique and mobile transformer technique was developed and applied. This paper presents the most optimal method according to distribution work contents through the comparison and analysis the characteristis and problems of the existing various work techniques. Also this paper suggested the countermeasers of the prsent problems.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• v.y2005m4
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• pp.92-95
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• 2005

The present work has been developed the type of non-electric and delay explosive bolt which does not need power supply device and has the delay function in the operation of the explosive bolt. Separation device system could be minimized because of non-electric power supply system. In order to prove the mechanism of operation, the present work used to ignite the initiator the power of air resistance caused front aviation object. we can be founded from the present work that the changes in the operation load influence directly the ignition of the initiator. The design of non-electric and delay explosive bolt is the most suitable the separation system necessary to reduce the velocity of aviation object and safe landing of parachute system.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.723-724
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• 2007

Live line work is well known for mending and maintenance of electrical power equipment. Nowadays needs of electric power supply quality require live line work In Korea, live line work is needed since 765kV transmission operation and restructure of electric power industry has changed. In other words, in case of suspension of power supply on the transmission is getting hard to keep up with efficiency of transmission operation, customer's confidence and generation-limited cost. Therefore live line work is very meaningful. As the condition of 765kV Transmission both bare hand and Helicopter live line technique must be used in moderation because of economic, geographical, environmental circumstances around steel tower.

• Journal of Electrical Engineering and Technology
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• v.1 no.1
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• pp.73-79
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• 2006

Conceptually, mechanical port of an electric machine can be doubled and the concept of dual-mechanical-port (DMP) will then give birth to a new breed of electric machines. In this paper, the various possible structures of DMP electric machine are discussed. Basic modeling and analysis issues related to the DMP electric machine are presented. An exemplary design of DMP machine is given and verified by FEM results. Potential applications and future research work are given to conclude the paper.

• 전기의세계
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• v.20 no.5
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• pp.9-14
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• 1971

This paper aims to study structural changes in electric conductors which are heated during electric fire by means of microscope. The results are applicable to the pursuit of the causes of electric fire and to the establishment of criteria for the indentification of electric fire. This work is an extension of the previous study by the author, particularly with emphasis on quantitative analysis.

• Journal of the Korean Society of Safety
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• v.33 no.2
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• pp.14-20
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• 2018

In this study, we analyze the current status of major disasters in distribution works and propose safety measures through the distribution live-line work method and electric shock risk assessment. The result of analyzing the ratio of electric shocks to the occurrence of industrial accidents in the recent 13 years shows that the death rate is higher than other industries, especially the construction industry occupying most of the disaster, and it is higher than the collapse disaster. We analyze statistic data of 101 victims selected as core words of live work, distribution line, pole and 22.9 kV in the investigation report of major accident of electric shock fatal from 2001 to 2014. The safety measure was established through the risk assessment of the distribution method using the standard model of the risk assessment based on the results of electric shock analysis on the distribution line. In order to prevent the electric shock accident which is recently being discussed, the risk assessment procedure were carried out in the above-mentioned 22.9kV special high voltage live-line operation method. We derived the risk reduction plan for the distribution line from the results of the major accidents statistic and demonstration of the line works.