JIEIE - Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.

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Title	Study on the Effectiveness of Continuous Water Removal in Oil Immersed Transformers
Authors	Jong-Ho Sun ; Don-Ha Hwang ; Jin-Soo Kim
DOI	http://dx.doi.org/10.5207/JIEIE.2016.30.2.020
Page	pp.20-25
ISSN	1225-1135
Keywords	Transformer ; Water Concentration ; Transformer Management ; Water Removal ; Insulation Paper ; Insulation Oil
Abstract	This paper describes the effectiveness of continuous water removal in oil immersed transformers. Insulation oil in which insulation papers were immersed were prepared for tests and water concentrations in oil with heating time were measured at five oil temperatures. Also, the tests that water dissolved in 100℃ oil was removed at once and continuously at 50℃ and 100℃ were performed for consideration of effective method for water removal. Test results indicated that the oils for water measurement have to be extracted at similar temperatures and water in oil has to be continuously removed at higher temperatures for more effective water management of transformers.

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