Propagation of electrical tree growth in a composite solid insulation consisted of epoxy resin and mica sheets: Simulation with the aid of Cellular Automata

2010 ◽  
Author(s):  
D. D. Christantoni ◽  
G. E. Vardakis ◽  
M. G. Danikas
Keyword(s):  
Cellular Automata ◽  
Epoxy Resin ◽  
Tree Growth ◽  
Electrical Tree ◽  
Composite Solid ◽  
Solid Insulation

scholarly journals Application of the Gaussian Mixture Model to Classify Stages of Electrical Tree Growth in Epoxy Resin

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2562
Author(s):  
Abdullahi Abubakar Mas’ud ◽  
Arunachalam Sundaram ◽  
Jorge Alfredo Ardila-Rey ◽  
Roger Schurch ◽  
Firdaus Muhammad-Sukki ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Gaussian Mixture Model ◽  
Mixture Model ◽  
Tree Growth ◽  
Asset Management ◽  
Gaussian Mixture ◽  
Growth Stages ◽  
Insulation Material ◽  
Electrical Tree ◽  
Electrical Trees

In high-voltage (HV) insulation, electrical trees are an important degradation phenomenon strongly linked to partial discharge (PD) activity. Their initiation and development have attracted the attention of the research community and better understanding and characterization of the phenomenon are needed. They are very damaging and develop through the insulation material forming a discharge conduction path. Therefore, it is important to adequately measure and characterize tree growth before it can lead to complete failure of the system. In this paper, the Gaussian mixture model (GMM) has been applied to cluster and classify the different growth stages of electrical trees in epoxy resin insulation. First, tree growth experiments were conducted, and PD data captured from the initial to breakdown stage of the tree growth in epoxy resin insulation. Second, the GMM was applied to categorize the different electrical tree stages into clusters. The results show that PD dynamics vary with different stress voltages and tree growth stages. The electrical tree patterns with shorter breakdown times had identical clusters throughout the degradation stages. The breakdown time can be a key factor in determining the degradation levels of PD patterns emanating from trees in epoxy resin. This is important in order to determine the severity of electrical treeing degradation, and, therefore, to perform efficient asset management. The novelty of the work presented in this paper is that for the first time the GMM has been applied for electrical tree growth classification and the optimal values for the hyperparameters, i.e., the number of clusters and the appropriate covariance structure, have been determined for the different electrical tree clusters.

Electrical tree growth in microsilica-filled epoxy resin

2020 ◽  
Vol 27 (3) ◽  
pp. 820-828
Author(s):  
Siyuan Chen ◽  
Zepeng Lv ◽  
James Carr ◽  
Malte Storm ◽  
Simon M. Rowland
Keyword(s):  
Epoxy Resin ◽  
Tree Growth ◽  
Electrical Tree

scholarly journals Electrical tree growth and partial discharge in epoxy resin under combined AC and DC voltage waveforms

2018 ◽  
Vol 25 (6) ◽  
pp. 2183-2190 ◽  
Author(s):  
Ibrahim Iddrissu ◽  
Simon M Rowland ◽  
Hualong Zheng ◽  
Zepeng Lv ◽  
Roger Schurch
Keyword(s):  
Epoxy Resin ◽  
Tree Growth ◽  
Partial Discharge ◽  
Dc Voltage ◽  
Electrical Tree

A Study on Coconut Shell Powder Filled in Epoxy Resin: A Remedy for Electrical Tree Growth Inhibition

2016 ◽  
Vol 718 ◽  
pp. 36-39 ◽  
Author(s):  
Thanyakon Saithanu ◽  
Amnart Suksri
Keyword(s):  
Epoxy Resin ◽  
Tree Growth ◽  
Coconut Shell ◽  
Potential Candidate ◽  
Electrical Tree ◽  
Solid Insulator ◽  
Tree Length ◽  
Coconut Shell Powder ◽  
Shell Powder

Electrical tree phenomenon is a long term degradation and can be found in solid insulator material. Its phenomenon will degrade the characteristic of insulator and may lead to breakdown. The use of filler in the process of manufacturing for the insulation is very popular method. This paper presents the use of coconut shell powder (CSP) filler in epoxy resin for inhibition of electrical tree growth. The CSP is filled with in ratio of 0.1, 0.3, 0.5, 0.8 and 1.0% by weight. The electrical tree was tested by AC voltage of 15kV and conducted for 30 minutes in this experiment. Experimental results shown that, the pure epoxy resin using as a controlled has tree length of 3.20 mm. While the epoxy resin using CSP filler of 1% by weight has a tree length propagation of 2.10 mm. The shorten length of electrical tree may be affected by the combination of modified permittivity (Ɛ) value of an insulator. Also, this study has shown that the CSP may be a potential candidate as a filler compound to be used as electrical tree inhibition for electrical insulation system.

scholarly journals Electrical Tree Growth Characteristics in Epoxy Resin With Harmonic Superimposed DC Voltage

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 47273-47281 ◽  
Author(s):  
Boxue Du ◽  
Meng Tian ◽  
Jingang Su ◽  
Tao Han
Keyword(s):  
Epoxy Resin ◽  
Tree Growth ◽  
Growth Characteristics ◽  
Dc Voltage ◽  
Electrical Tree
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