Skoči na glavni sadržaj

Rezultati pretrage

eng Transformers with low degree of polymerisation of paper
Duval, Michel
Transformers Magazine Vol. 1, No. 3, 2014
Present observations indicate that the life of transformers with a degree of polymerisation of paper of 200 could be extended by several years without increasing their risk of failure due to the mechanical condition of paper, thus signifcantly reducing capital investment costs needed for their replacement
Hrčak ID: 185463


eng New method for 2-furfuraldehyde analysis
Remartinez, Begoña; Jiménez, Javier
Transformers Magazine Vol. 2, No. 2, 2015
Apart from abnormal faults detected by DGA, one of the most important factors in shortening the lifetime of a power transformer is ageing of paper insulation used in transformer construction. The analysis of furans in transformer oil is one of the best techniques to be used in the assessment of the remaining lifespan of a used transformer. This technical article aims to describe the development and validation of an analytical method based on ultraviolet-visible (UV-VIS) absorption spectrophotometry, designed to evaluate the content of 2-furfura...
Hrčak ID: 182911