Short-Term Breakdown in Silicone Rubber Based Nanocomposites Caused by Electrical Treeing

2013 ◽  
Vol 845 ◽  
pp. 482-486 ◽  
Author(s):  
A.A.Abd. Jamil ◽  
Mohd Hafizi Bin Ahmad ◽  
M. Kamarol ◽  
M. Mariatti ◽  
M.A.M. Piah
Keyword(s):  
Experimental Study ◽  
Tree Growth ◽  
Silicone Rubber ◽  
Promising Material ◽  
Short Term ◽  
Breakdown Time ◽  
Electrical Tree ◽  
Three Samples ◽  
Two Parameters ◽  
Electrical Treeing

This paper presents experimental study on short-term breakdown of silicone rubber based nanocomposites with different silicone dioxide (SiO2) nanofiller loading by focusing on the effect of electrical tree. The objective of this study was to investigate the ability of SiO2 nanofiller to inhibit the growth of electrical tree in silicone rubber until breakdown. Samples of silicone rubber based nanocomposites (three samples were filled with 1wt%, 2wt% and 3wt% of SiO2 respectively whereas the forth sample was unfilled silicone rubber), were used in this experimental study and two parameters such as electrical tree initiation voltage and breakdown time were measured. Based on the obtained results, the sample with the highest SiO2 loading has shown the highest tree initiation voltage and the longest breakdown time. Therefore, this makes SiO2 a promising material to be used as fillers in polymeric insulations for the purpose of retarding electrical tree growth.

scholarly journals Temperature Effect on Electrical Treeing and Partial Discharge Characteristics of Silicone Rubber-Based Nanocomposites

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Mohd Hafizi Ahmad ◽  
Nouruddeen Bashir ◽  
Zolkafle Buntat ◽  
Yanuar Z. Arief ◽  
Abdul Azim Abd Jamil ◽  
...  
Keyword(s):  
Tree Growth ◽  
Silicone Rubber ◽  
Partial Discharge ◽  
Effect Of Temperature ◽  
Growth Time ◽  
Electrical Tree ◽  
Base Polymer ◽  
Increasing Temperature ◽  
Vulcanization Process ◽  
Electrical Treeing

This study investigated electrical treeing and its associated phase-resolved partial discharge (PD) activities in room-temperature, vulcanized silicone rubber/organomontmorillonite nanocomposite sample materials over a range of temperatures in order to assess the effect of temperature on different filler concentrations under AC voltage. The samples were prepared with three levels of nanofiller content: 0% by weight (wt), 1% by wt, and 3% by wt. The electrical treeing and PD activities of these samples were investigated at temperatures of 20°C, 40°C, and 60°C. The results show that the characteristics of the electrical tree changed with increasing temperature. The tree inception times decreased at 20°C due to space charge dynamics, and the tree growth time increased at 40°C due to the increase in the number of cross-link network structures caused by the vulcanization process. At 60°C, more enhanced and reinforced properties of the silicone rubber-based nanocomposite samples occurred. This led to an increase in electrical tree inception time and electrical tree growth time. However, the PD characteristics, particularly the mean phase angle of occurrence of the positive and negative discharge distributions, were insensitive to variations in temperature. This reflects an enhanced stability in the nanocomposite electrical properties compared with the base polymer.

scholarly journals Electrical Tree Growth in Silicone Rubber/Organo-Montmorillonite Nanocomposites under AC Ramp Voltage

2013 ◽  
Vol 64 (4) ◽  
Author(s):  
A. A. A. Jamil ◽  
M. H. Ahmad ◽  
Y. Z. Arief ◽  
M. Kamarol ◽  
M. Mariatti ◽  
...  
Keyword(s):  
Experimental Study ◽  
Growth Rate ◽  
Tree Growth ◽  
Silicone Rubber ◽  
Nanocomposite Sample ◽  
The Third ◽  
Electrical Tree ◽  
Ramp Voltage ◽  
Rubber Nanocomposites ◽  
Montmorillonite Nanocomposites

This paper presents the results of the study on the electrical tree growth of organo-montmorillonite (OMMT) nanofillers in silicone rubber under ac ramp voltage of 0.5 kV per second. This study investigates the ability of OMMT to retard the growth of electrical tree in silicone rubber. Samples of silicone rubber nanocomposites (two filled with 1% and 3% OMMT respectfully while the third is unfilled silicone rubber), were used in this experimental study and the growth rate of the electrical tree and its length were observed in both samples. .The result of this study has revealed that in the filled nanocomposite sample, the OMMT acts as barrier which slows down the growth rate of electrical tree. This makes OMMT a potential material to use as fillers in polymeric insulations for the purpose of retarding electrical tree growth.

scholarly journals Electrical treeing and partial discharge characteristics of silicone rubber filled with nitride and oxide based nanofillers

2020 ◽  
Vol 10 (2) ◽  
pp. 1682
Author(s):  
A. H. M. Nasib ◽  
M. H. Ahmad ◽  
Z. Nawawi ◽  
M. A. B. Sidik ◽  
M. I. Jambak
Keyword(s):  
Tree Growth ◽  
Silicone Rubber ◽  
Partial Discharge ◽  
Filler Concentration ◽  
Weight Percentage ◽  
Electrical Tree ◽  
Power Frequency ◽  
Sio2 Nanocomposites ◽  
Electrical Treeing ◽  
Better Than

This article presents a study on electrical treeing performances with its associated partial discharge (PD) and the influence of filler concentration in silicone rubber (SiR) samples which are filled with silicon dioxide (SiO2) and silicon nitride (Si3N4) as nanofillers for electrical tree growth suppression. There are many researches on electrical treeing in SiR with SiO2 nanofillers but none of the publication have reported on Si3N4 nanofillers for suppression of the electrical tree growth. In this study, the treeing experiments were conducted by applying a fixed AC voltage of 10 kV and 12 kV at power frequency of 50 Hz on unfilled SiR, SiR/SiO2, and SiR/Si3N4 nanocomposites with different filler concentrations by 1, 3, and 5 weight percentage (wt%) and the electrical treeing parameters were observed with its correlated PD patterns. The outcome from this study found that the SiR/Si3N4 nanocomposites were able to withstand the electrical treeing better than the pure SiR or SiR/SiO2 nanocomposites. Furthermore, the increase in filler concentration improved the electrical tree performances of the nanocomposites. This finding suggests the Si3N4 can be used as filler in polymeric insulating materials for electrical tree inhibition. Meanwhile, the PD activity shows increment when the tree progresses thereby indicating correlation in both parameters which can be as key parameter for monitoring unseen electrical treeing in the opaque samples.

scholarly journals Effect of Alumina and Halloysite clay on Electrical tree growth in Silicone Rubber Nanocomposite

2018 ◽  
Vol 2 (3) ◽  
pp. 20-25
Author(s):  
Keyword(s):  
Tree Growth ◽  
Silicone Rubber ◽  
Strength Properties ◽  
Growth Speed ◽  
New Approach ◽  
Undoped Material ◽  
Electrical Tree ◽  
Nano Alumina ◽  
Tree Growth Rate ◽  
Insulation Breakdown

Nowadays Silicone Rubber (SiR) is recommended in high voltage cable accessories fabrication as it offers excellent electrical and mechanical properties. Electrical tree is one of the phenomenon which contributes to the main factor of SiR insulation breakdown. Recently, a new approach has been applied in order to enhance the insulation strength properties by introducing nano filler in undoped material. Thus, this paper presents the influence of nano-alumina and halloysite nanoclay on electrical tree growth in SiR at 0, 1 vol%, 2 vol% and 3 vol% concentration. The electrical tree growth was investigated at 8kVrms after tree inception voltage (TIV) within 30 minutes under room temperature. The results show reductions of electrical tree growth speed and accumulate damage (%) up to 2 vol% nano-alumina and up to 3 vol% halloysite nanoclay. Nevertheless the presence of 3 vol% nano-alumina in SiR leads to the faster electrical tree growth rate and the worst accumulate damage within 1 minute of electrical tree growth process.

scholarly journals A Comparative Study on Electrical Tree Growth in Silicone Rubber Containing Nanoalumina and Halloysite Nanoclay

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 24452-24462 ◽  
Author(s):  
M. Hafiz ◽  
M. Fairus ◽  
M. Mariatti ◽  
M. Kamarol
Keyword(s):  
Comparative Study ◽  
Tree Growth ◽  
Silicone Rubber ◽  
Electrical Tree

scholarly journals Electrical Treeing in Polymer Nanocomposites

2009 ◽  
Vol 10 (2) ◽  
Author(s):  
Sridhar Alapati ◽  
M. Joy Thomas
Keyword(s):  
Epoxy Resin ◽  
Polymer Nanocomposites ◽  
Tree Growth ◽  
Polymer Nanocomposite ◽  
Growth Patterns ◽  
Nano Silica ◽  
Electrical Tree ◽  
Base Polymer ◽  
Time Required ◽  
Electrical Treeing

This paper presents a study of electrical treeing phenomena in polymer nanocomposites. The polymer nanocomposite studied consists of epoxy resin as base polymer and silica as nano filler. Treeing experiments were performed at a constant ac voltage of 20kV, 50Hz on epoxy samples without any fillers as well as epoxy silica nano composites with 1% by weight of nano silica. Times for tree inception as well as tree growth patterns were studied. The results show that addition of small amount (1% by weight) of nano silica particles in epoxy resin can improve the treeing resistance by delaying the tree inception time as well as the time required by the tree to reach the opposite electrode. Treeing phenomena has been analyzed and interpreted by a physical model to explain the behavior in nanocomposites. The nature of bonding at the interface between epoxy and nano filler is characterized by using FTIR spectrometry. It has been shown that the type of bonding at the interface has an influence on the electrical tree growth pattern.

scholarly journals Effects of Temperature Gradient on Electrical Tree Growth and Partial Discharge in Silicone Rubber Under AC Voltage

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 54009-54018
Author(s):  
Boxue Du ◽  
Tingting Ma ◽  
Jingang Su ◽  
Meng Tian ◽  
Tao Han ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Tree Growth ◽  
Silicone Rubber ◽  
Partial Discharge ◽  
Electrical Tree ◽  
Effects Of Temperature
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