Space charge behavior of epoxy resin with low Tg under polarity reversal voltage

2016 ◽  
Author(s):  
Hongliang Zhang ◽  
Peng Liu ◽  
Ding Li ◽  
Hua Feng ◽  
Chuang Wang ◽  
...  
Keyword(s):  
Space Charge ◽  
Epoxy Resin ◽  
Polarity Reversal

Space charge dynamics in epoxy resin impregnated crepe paper multilayer under voltage polarity reversal

2019 ◽  
Vol 26 (1) ◽  
pp. 253-260 ◽  
Author(s):  
Hongliang Zhang ◽  
Peng Liu ◽  
Hua Feng ◽  
Siyu Zhang ◽  
Ding Li ◽  
...  
Keyword(s):  
Space Charge ◽  
Epoxy Resin ◽  
Polarity Reversal ◽  
Charge Dynamics ◽  
Voltage Polarity

scholarly journals Space charge dynamics in epoxy resin under voltage polarity reversal at various temperatures

High Voltage ◽  
2020 ◽  
Author(s):  
Peng Liu ◽  
Hongliang Zhang ◽  
Siyu Zhang ◽  
Xialin Su ◽  
Zongliang Xie ◽  
...  
Keyword(s):  
Space Charge ◽  
Epoxy Resin ◽  
Polarity Reversal ◽  
Charge Dynamics ◽  
Voltage Polarity

Investigation of space charge behavior in self-healing epoxy resin composites

2021 ◽  
Author(s):  
Muhammad Zeeshan khan ◽  
Muhammad Hamza Younes ◽  
Aurang Zaib ◽  
Umar Farooq ◽  
Asim khan ◽  
...  
Keyword(s):  
Space Charge ◽  
Epoxy Resin ◽  
Resin Composites ◽  
Self Healing ◽  
Epoxy Resin Composites

scholarly journals Effect of Temperature on Space Charge Distribution of Oil–Paper Insulation under DC and Polarity Reversal Voltage

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2271 ◽  
Author(s):  
Qingguo Chen ◽  
Jinfeng Zhang ◽  
Minghe Chi ◽  
Peng Tan ◽  
Wenxin Sun
Keyword(s):  
Electric Field ◽  
Space Charge ◽  
Electric Field Distribution ◽  
Operating Conditions ◽  
Polarity Reversal ◽  
Effect Of Temperature ◽  
Slow Decay ◽  
Voltage Polarity ◽  
Field Distortion ◽  
Paper Insulation

The electric field distortion caused by space charge is an important factor affecting the operation reliability of oil–paper insulation in a converter transformer. To study the accumulation and decay characteristics of the space charge within oil-impregnated pressboard under DC and polarity reversal voltage, and consider the possible operating conditions of the converter transformer, the space charge behavior of oil-impregnated pressboard was measured by the pulsed electro-acoustic (PEA) method in the temperature range from −20 °C to 60 °C. The effect of temperature on the accumulation and decay characteristics of space charge is also analyzed. The space charge accumulated within the pressboard at low temperature is mainly homocharge injected by the electrode, while heterocharge formed by ion dissociation counteracts some of the homocharge at high temperature. Thus, the space charge of pressboard first increases, then decreases, with an increase in temperature. However, slow decay of the space charge causes severe distortion of the electric field distribution in the pressboard during voltage polarity reversal.

scholarly journals Influence of filler content on trap and space charge properties of epoxy resin nanocomposites

2017 ◽  
Vol 66 (9) ◽  
pp. 097701
Author(s):  
Yuan Duan-Lei ◽  
Min Dao-Min ◽  
Huang Yin ◽  
Xie Dong-Ri ◽  
Wang Hai-Yan ◽  
...  
Keyword(s):  
Space Charge ◽  
Epoxy Resin ◽  
Filler Content ◽  
Epoxy Resin Nanocomposites
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