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- W2380207829 abstract "For studying the effects of epoxy-mica curing process on the quality of high-capacity generator insulation,the frequency domain spectroscopy was used for wide frequency dielectric spectroscopy measurements of the generator bars. The expressions related to the relationship of dielectric dissipation factor with frequency and temperature were derived according to dielectric response theory,meanwhile,frequency domain characteristics of dielectric parameters were investigated under the test conditions of different curing temperature and duration. It is shown that the dielectric response characteristics of insulation system fully cured in 170 ℃ are superior to that of incompletely cured insulation system in 150 ℃ and160 ℃. Small molecules crosslink into macromolecules after cured,which greatly reduce the curable polar molecules. Total loss is less than those with temperature of 150 ℃ and 160 ℃. In addition,there is a significant convergence trend in the loss scatter plot for each frequency of completely cured samples. It is concluded that,with increasing degree of curing,small molecules prone to orientated polarization gradually reduce,and the dielectric loss thus decrease significantly with respect to the incompletely cured samples in the same frequency. The dielectric properties of epoxy-mica composite insulation is greatly improved after curing." @default.
- W2380207829 created "2016-06-24" @default.
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- W2380207829 date "2014-01-01" @default.
- W2380207829 modified "2023-09-24" @default.
- W2380207829 title "The dielectric response characteristics of curing process in Epoxy-Mica composite insulation" @default.
- W2380207829 hasPublicationYear "2014" @default.
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