저압계통 연계력을 고려한 지상변압기 용량증가에 따른 이용률 분석에 관한 연구

채희석; 신중우; 문종필

doi:10.5370/KIEEP.2021.70.3.139

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저널정보

대한전기학회
전기학회논문지 P 학술저널
전기학회논문지 제70P권 제3호
2021.9 139 - 143 (5page)
DOI : 10.5370/KIEEP.2021.70.3.139

저자정보

채희석 (Hyosung)
신중우 (Soongsil University)
문종필 (Korea National University of Transportation)

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초록·키워드

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Underground power system has been mostly configured in a type of transformers connected to branch lines. However, Configuration type of transformer connected to main line with open or looped low voltage(LV) network is now being applied to underground system to improve operating complexity and customer’s reliability. In this paper, when a transformer connection type is changed and already installed transformers are used, utilization factors of the transformers are analyzed. We divided 13 sections and two capacities of transformers. If there is a fault at 1 transformer, it is analyzed how the other’s utilization factor can be changed using monte carlo simulation. Futhermore, the growth of load is applied to analyze the utilization factors of transformers. thus, the trends of utilization factors are presented according to years.

#Power Transformer #Utilization Factor #Looped Low Voltage Network #Underground System