Study on the vacuum surface flashover characteristics of epoxy composites with microTiO2 fillers under steep high-voltage impulse

2009 ◽  
Author(s):  
Z. B. Wang ◽  
Y. H. Cheng ◽  
Y. Chen ◽  
M. Ding ◽  
J. B. Zhou ◽  
...  
Keyword(s):  
High Voltage ◽  
Epoxy Composites ◽  
Surface Flashover

scholarly journals DC surface flashover characteristics of ZnO/Epoxy composites at room temperature and 77 K

2020 ◽  
Vol 756 ◽  
pp. 012004
Author(s):  
Kaikai Zhang ◽  
Chuanjun Huang ◽  
Yongguang Wang ◽  
Hua Zhang ◽  
Chi Zhang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Epoxy Composites ◽  
Surface Flashover

scholarly journals Characteristics of Gel Time and Dielectric Strength of Epoxy Composite According to the Mixing Ratio of Micro-Fillers

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5165
Author(s):  
Dong-Hun Oh ◽  
Ho-Seung Kim ◽  
Jae-Hun Shim ◽  
Young-Ho Jeon ◽  
Da-Won Kang ◽  
...  
Keyword(s):  
Experimental Data ◽  
Epoxy Resin ◽  
High Voltage ◽  
Epoxy Composite ◽  
Dielectric Strength ◽  
Epoxy Composites ◽  
Power Equipment ◽  
Mixing Ratio ◽  
Gel Time ◽  
Micro Fillers

The dielectric strength and gel time of epoxy composites vary with the mixing ratio of epoxy resin, hardener, additives, filler, etc., and especially the gel time affects the productivity and economics of ultra-high-voltage (UHV) equipment. However, previous studies focused only on the dielectric strength of epoxy composites for the reliability of UHV equipment. Therefore, a study considering both the dielectric strength and gel time of the epoxy composite is required. In this paper, the characteristics of the gel time and dielectric strength of the epoxy micro-composites according to the mixing ratio of silica (SiO2) and alumina (Al2O3) micro-fillers without changing the mixing ratio of epoxy resin and hardener are analyzed. Experimental results show that the gel time decreased and the dielectric strength increased as the mixing ratio of the SiO2 micro-filler increased. Therefore, it is concluded that the gel time can be controlled by changing the mixing ratio of micro-fillers without changing the mixing ratio of the epoxy resin and hardener. In addition, experimental data can be used as basic data for economical production considering both the reliability and productivity of UHV power equipment.

A multi-functional high voltage experiment apparatus for vacuum surface flashover switch research

2015 ◽  
Vol 86 (4) ◽  
pp. 043302 ◽  
Author(s):  
Bo Zeng ◽  
Jian-cang Su ◽  
Jie Cheng ◽  
Xiao-long Wu ◽  
Rui Li ◽  
...  
Keyword(s):  
High Voltage ◽  
Surface Flashover
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