scholarly journals Effect of Nano Al2O3 Doping on Thermal Aging Properties of Oil-Paper Insulation

Energies ◽  
2018 ◽  
Vol 11 (5) ◽  
pp. 1176 ◽  
Author(s):  
Ningchuan Liang ◽  
Ruijin Liao ◽  
Min Xiang ◽  
Yang Mo ◽  
Yuan Yuan
Keyword(s):  
Thermal Aging ◽  
Aging Properties ◽  
Paper Insulation ◽  
Al2o3 Doping

scholarly journals Influence of Amine Compounds on the Thermal Stability of Paper-Oil Insulation

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 891 ◽  
Author(s):  
Ningchuan Liang ◽  
Ruijin Liao ◽  
Min Xiang ◽  
Yang Mo ◽  
Yuan Yuan
Keyword(s):  
Thermal Stability ◽  
Thermal Aging ◽  
Acid Value ◽  
Orbital Energy ◽  
Excellent Thermal Stability ◽  
Insulating Paper ◽  
Aging Properties ◽  
Amine Compounds ◽  
Paper Insulation ◽  
Thermal Stability Of

Amine compounds can greatly enhance the thermal stability of the insulating paper used in paper-oil insulation. Many research documents focus on paper‘s excellent thermal stability, but less attention has been paid to the effect of oil on paper’s degradation. In this research paper, we study the influence of different amine compounds on the thermal stability of both paper and oil, and a mechanism for the influence on paper-oil insulation as well as an optimal formula are proposed. First, six groups of paper were modified with different proportions of dicyandiamide (DICY), melamine, and polyacrylamide (PAM). Then, an accelerated thermal aging test at 130 °C was conducted for 30 days and the thermal aging characteristics of the oil-modified paper insulation were measured. The results showed that the thermal stability of the insulation paper modified with the amine compounds was remarkably improved, and P2 (2.25 wt % melamine, 0.75 wt % DICY, and 0.2 wt % PAM) presented the best anti-aging properties. However, certain properties of oil were influenced, such as acid value, and it was found that the ammonia produced by the amine stabilizers increased the copper compound content, which led to the deterioration of the insulating oil. Moreover, using a front-line orbital energy analysis by molecule modeling, it was determined that melamine was the core thermal stabilizer for the paper among the three amine compounds used in P2.

Effects of thermal aging on moisture equilibrium in oil-paper insulation

2018 ◽  
Vol 25 (6) ◽  
pp. 2340-2348 ◽  
Author(s):  
Dongyang Wang ◽  
Lijun Zhou ◽  
Xianlang Li ◽  
Yi Cui ◽  
Huize Li ◽  
...  
Keyword(s):  
Thermal Aging ◽  
Paper Insulation

Effects of alloying elements on microstructure and thermal aging properties of Au bonding wire

2011 ◽  
Vol 51 (12) ◽  
pp. 2250-2256 ◽  
Author(s):  
Hyung-Giun Kim ◽  
Taeg-Woo Lee ◽  
Eun-Kyun Jeong ◽  
Won-Yong Kim ◽  
Sung-Hwan Lim
Keyword(s):  
Thermal Aging ◽  
Alloying Elements ◽  
Bonding Wire ◽  
Aging Properties

Thermal Aging Dependent Surface Charge Characteristics of Fluorinated Oil-paper Insulation Under the Harmonic Superimposed DC Voltages

2021 ◽  
Author(s):  
Wenbo Zhu ◽  
Mingli Fu ◽  
Shuai Hou ◽  
Baojun Hui ◽  
Yifan Zhang ◽  
...  
Keyword(s):  
Surface Charge ◽  
Thermal Aging ◽  
Paper Insulation

Influence of metal transformer materials on oil-paper insulation after thermal aging

2019 ◽  
Vol 26 (2) ◽  
pp. 554-560 ◽  
Author(s):  
Deng Wang ◽  
Zhiping Zhu ◽  
Li Zhang ◽  
Yihua Qian ◽  
Wei Su ◽  
...  
Keyword(s):  
Thermal Aging ◽  
Paper Insulation

Moisture and thermal aging effects on the FDS measurement of silicone oil-paper insulation

2016 ◽  
Author(s):  
Li-Shuang Cao ◽  
Wen-Dong Li ◽  
Fan-Bo Meng ◽  
Xiang Bin ◽  
Yong-Hua Wang ◽  
...  
Keyword(s):  
Thermal Aging ◽  
Silicone Oil ◽  
Aging Effects ◽  
Paper Insulation

scholarly journals Effects of Winding Vibration on the Mechanical-Thermal Aging Properties of Insulating Paper

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 67912-67920 ◽  
Author(s):  
Junhong Wang ◽  
Ruijin Liao ◽  
Li Cheng ◽  
Zhidong Cheng
Keyword(s):  
Thermal Aging ◽  
Insulating Paper ◽  
Aging Properties
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