Degree Of Polymerization Test

The degree of polymerization DP value of paper was defined by IEC and it counts the number of polymerized glucose rings. As it is not possible to take paper samples during running operation, the condition of the solid insulation is estimated based on the cellulose decomposition products Furfural ..The solid insulation in a transformer is made of paper, which can be damaged by moisture or heat or acids .Degree of polymerization DP is thought to be a good index to determined deterioration level of insulation paper in power transformers. In this paper a new method to estimate DP from load and temperature histories is proposed.. Present observations indicate that the life of transformers with a DP of paper of could be extended by several years without increasing their risk .

The degree of polymerization DP value of paper was defined by IEC and it counts the number of polymerized glucose rings. As it is not possible to take paper samples during running operation, the condition of the solid insulation is estimated based on the cellulose decomposition products Furfural ..The solid insulation in a transformer is made of paper, which can be damaged by moisture or heat or acids .Degree of polymerization DP is thought to be a good index to determined deterioration level of insulation paper in power transformers. In this paper a new method to estimate DP from load and temperature histories is proposed.. Present observations indicate that the life of transformers with a DP of paper of could be extended by several years without increasing their risk .

by Eltrasolution

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