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Estimation of water content in oil-impregnated cellulose materials in transformers

Anatoly Shkolnik

Puni tekst: engleski pdf 551 Kb

str. 110-115

preuzimanja: 711



Oil-impregnated cellulose materials are used in oil-filled transformers. Water in insulation has a negative effect on electrical, mechanical and chemical properties of insulating materials. Since taking insulation samples from the transformer is no easy task, laboratory testing to estimate water content in insulation is conducted with a measurement instrument that is based on a known indirect method. This paper describes the possibility to estimate water content in oil-impregnated cellulose insulation on the basis of results of the measured relative humidity of the oil in the transformer.

Ključne riječi

oil-filled transformer, oil-impregnated cellulose insulation, water content in oil and cellulose insulation

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Posjeta: 918 *