J
Jian Hao
Researcher at Electric Power Research Institute
Publications - 18
Citations - 265
Jian Hao is an academic researcher from Electric Power Research Institute. The author has contributed to research in topics: Space charge & Insulation system. The author has an hindex of 7, co-authored 18 publications receiving 220 citations. Previous affiliations of Jian Hao include Chongqing University & University of Southampton.
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Quantitative analysis of ageing condition of oil-paper insulation by frequency domain spectroscopy
TL;DR: In this article, a frequency domain spectroscopy (FDS) was used to assess the ageing condition of oil-paper insulation used in transformers, and the results reveal that the relative permittivity (er') plots of oil impregnated pressboards increase with the reduction in cellulose polymer chain length.
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Quantitative analysis of insulation condition of oil-paper insulation based on frequency domain spectroscopy
TL;DR: In this paper, the authors used frequency domain spectroscopy (FDS) to assess the insulation condition of power transformers in order to distinguish the influences of moisture and aging on the frequency domain dielectric response.
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Space charge characteristics in oil and oil-impregnated pressboard and electric field distortion after polarity reversal
TL;DR: In this paper, the effect of electric stress and oil ageing on space charge characteristics in an oil/paper insulation system was analyzed using pulsed electroacoustic technique (PEA) method.
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Quantitative evaluation of ageing condition of oil-paper insulation using frequency domain characteristic extracted from modified cole-cole model
TL;DR: In this article, a modified Cole-Cole model was introduced to describe the frequency domain spectroscopy (FDS) curves based on the classic Debye relaxation model and thereby accurately determined the ageing state of the insulation of a power transformer using FDS.
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Effect of temperature on the production and diffusion behaviour of furfural in oil–paper insulation systems
TL;DR: In this paper, the effect of temperature variation on the production and diffusion behavior of furfural in oil-paper insulation was analyzed, and it was shown that a higher temperature results in more Furfural being produced when the degree of polymerization (DP) decreases to values below 600.