• The Transactions of the Korean Institute of Electrical Engineers A
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• v.55 no.2
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• pp.70-75
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• 2006

Owing to the strike of lightning a breakage of insulator would happen. This breakage may give rise to many problems such as increment of reclosing failure, a drop for reliance and a hardship of maintenance and repair. To solve those problem, this study develop a protected equipment for insulator which is suitable to 22.9[kV] distribution line towers and is purposed to investigation for a Proper adaption, Protection efficiency of insulator and effect of adaption.

• Proceedings of the KIEE Conference
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• 1998.07e
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• pp.1586-1588
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• 1998

To use the EMTP, in this paper, a arcing horn is simulated by non-linear resistor and inductor element using TACS, a tower by distributed parameter model, and lines as K. C. Lee model. Changing lightning current characteristics, lightning position, and tower footing resistor value, we analysis multi-phase flashover characteristics in 765 kV transmission line.

• Proceedings of the KAIS Fall Conference
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• 2006.11a
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• pp.172-175
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• 2006

Owing to the strike of lighting a breakage of insulator would happen. This breakage may give rise to many problems such as increment of reclosing failure, a drop for reliance and a hardship of maintenance and repair. To solve those problems, this study develop a protected equipment for insulator which is suitable to 22.9kV distribution line towers and is purposed to investigation for a proper adaption, protection efficiency of insulator and effect of adaption.

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.453-454
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• 2015

낙뢰에 대한 전력계통의 적절한 보호를 위해서 피뢰기/아킹혼의 적절한 보호작동 설계가 필요하다. 피뢰기/아킹혼은 낙뢰에 의해 이상전압 발생시 섬락 동작을 통하여 계통을 보호하므로, 절연파괴 특성에 대한 상세한 연구가 필요하다. 본 논문에서는 피뢰기/아킹혼의 섬락동작에 직접적인 영향을 주는 절연갭의 미세조정에 따른 절연파괴 특성에 대한 연구를 실험적으로 수행하였다. 실험 결과, 갭간격이 증가할수록 절연파괴전압은 증가하고, 그 증가폭은 지수적으로 감소하는 전형적은 방전 특성을 확인하였으며, 그 상세한 변화 값을 측정하였다. 또한 표준 갭간격에서의 섬락특성과 섬락전압 분포도를 구하여 절연협조 상태를 분석하였다.

• Proceedings of the KIEE Conference
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• 1997.07e
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• pp.1843-1846
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• 1997

This paper describes the fault reducing effects of the 154 kV transmission tower by auxiliary grounding from the top of the tower to ground. The grounding surge impedance of the auxiliary grounding system is calculated by CDEGS(:Current Distribution Electromagnetic Interference Grounding and Soil Structure Analysis), and the critical lightning back flashover current and arcing horn dynamic characteristics are simulated by EMTP/TACS(:Electromagnetic Transient Program/Transient Analysis of Control Systems). The calculated results of total LFOR(Lightning Flashover Rate) shows that the LFOR can be reduced from 5.2(count/100km. year) to 3.4 by auxiliary grounding on the 154 kV transmission tower with one ground wire shielding system.

• Proceedings of the KIEE Conference
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• 2003.07a
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• pp.473-475
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• 2003

Owing to the strike of lightning a breakage of insulator would happen. This breakage may give rise to many problems such as increment of reclosing failure, a drop for reliance and a hardship of maintenance and repair. To solve those problem, this study develop a protected equipment for insulator which is suitable to 22.9kV distribution line towers and is purposed to investigation for a proper adaption, protection efficiency of insulator and effect of adaption.