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- E-ISSN 2288-8985
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- P-ISSN1225-0163
- E-ISSN2288-8985
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A Study on the Diagnosis of Power Transformers by Analysis of Insulating Oil
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2000, v.13 no.2, pp.166-172
Kim,
K., Lim,
C., Park,
H., Lee,
T., &
Yang,
S.
(2000). A Study on the Diagnosis of Power Transformers by Analysis of Insulating Oil. Analytical Science and Technology, 13(2), 166-172.
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Abstract
The life expectation of power transformers is basically dependent on the aging deterioration of insulating paper which can not be obtained from operating transformers. Therefore, it will be very useful if we can manage transformers by indirect analysis of degradation products. "Furan derivatives" are known the decomposition products which are generated by the degradation of cellulose in insulating paper. We proved that 2-furfural is the only measurable product from our transformers, and determined easily the concentration of 2-furfural by HPLC without any specific pretreatments, Compared to concentration of <TEX>$CO_2$</TEX> and CO by GC, the concentration of 2-furfural by HPLC can estimate more accurately aging characteristics of transformers. We expect that these results can be utilized to predict the aging characteristics and life diagnosis of power transformers.
- keywords
- Furfural (or furaldehyde), life diagnosis, insulating material (insulating oil and paper), aging deterioration, DGA (dissolving gas analysis), cellulose paper
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