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

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

scholarly journals THE DEGREE OF POLYMERIZATION OF POWER TRANSFORMERS’ PAPER INSULATION

2019 ◽  
Vol 20 (9-10) ◽  
pp. 34-38 ◽  
Author(s):  
V. K. Kozlov ◽  
A. Kh. Sabitov
Keyword(s):  
Aging Time ◽  
Thermal Aging ◽  
Manufacturing Process ◽  
Degree Of Polymerization ◽  
Power Transformers ◽  
Aging Rate ◽  
Slowing Down ◽  
Starting Time ◽  
Exponential Decrease ◽  
Paper Insulation

The paper presents the results of research and analysis of literature data on the paper insulation's thermal aging. An exponential decrease in the degree of polymerization of paper insulation from the aging time is established, at the starting time of transformers’ operation the aging rate of paper insulation is maximal and after that its slowing down. It was found out that the degree of polymerization at the starting time of the transformer's operation can be in the range of 900 units, this is due to its drying during the manufacturing process.

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
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