Age estimation of cellulose paper insulation in power transformers using ANN

2004 ◽  
Author(s):  
J.S. Navamany ◽  
P.S. Ghosh
Keyword(s):  
Age Estimation ◽  
Power Transformers ◽  
Cellulose Paper ◽  
Paper Insulation

scholarly journals Probabilistic Health Index-Based Apparent Age Estimation for Power Transformers

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 9692-9701 ◽  
Author(s):  
Shuaibing Li ◽  
Guangning Wu ◽  
Haiying Dong ◽  
Lei Yang ◽  
Xiaofei Zhen
Keyword(s):  
Age Estimation ◽  
Power Transformers ◽  
Health Index ◽  
Apparent Age

Radiation-chemical degradation of the paper insulation of power transformers

2005 ◽  
Vol 39 (3) ◽  
pp. 196-197
Author(s):  
V. N. Bondareva ◽  
V. B. Komarov ◽  
A. F. Seliverstov ◽  
B. G. Ershov ◽  
M. Yu. L’vov ◽  
...  
Keyword(s):  
Chemical Degradation ◽  
Power Transformers ◽  
Radiation Chemical ◽  
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.

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