KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	Overload Criterion of Mineral-Oil-immersed Distribution Transformers Rated 100kVA and Less Using the Characteristics of Top-Oil Temperature Rising
Authors	윤상윤(Yun, Sang-Yun) ; 김재철(Kim, Jae-Chul) ; 박창호(Park, Chang-Ho)
Page	pp.559-567
ISSN	1975-8359
Keywords	Overload criterion ; mineral-oil-immersed distribution transformer ; top-oil temperature rising
Abstract	This paper presents the general recommendations for the overload criterions of mineral-oil-immersed distribution transformers rated 100kVA and less. For this purpose, we analyze the characteristics of top-oil temperature rising for mineral-oil-immersed power distribution transformer rated 100kVA and less, manufactured in Korea, In order to analyze the characteristics of top-oil temperature rising due to the distribution transformer loading, we performed experiments at KERI (Korea Electrical Research Institute) from December 2000 to May 2001. The restraint of ambient temperatures for the experiment results is solved using the results of foreign standards. Finally, we present the overload criterions of distribution transformer for summer and winter season, respectively.

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