Effect of temperature on space charge behavior in epoxy resin under polarity reversal voltage

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

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.

Effect of temperature gradient on space charge behavior in epoxy resin and its nanocomposites

2017 ◽  
Vol 24 (3) ◽  
pp. 1537-1546 ◽  
Author(s):  
Jinhua Dong ◽  
Zhihui Shao ◽  
Yang Wang ◽  
Zepeng Lv ◽  
Xia Wang ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Space Charge ◽  
Epoxy Resin ◽  
Effect Of Temperature

Effect of temperature on space charge characteristics in epoxy resin

2015 ◽  
Vol 22 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Peng Liu ◽  
Xin Ning ◽  
Zongren Peng ◽  
Zhen Xiang ◽  
Hua Feng ◽  
...  
Keyword(s):  
Space Charge ◽  
Epoxy Resin ◽  
Effect Of Temperature

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
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