Application of nonlinear methods in tracking failure test of epoxy/SiO&lt;inf&gt;2&lt;/inf&gt; nanocomposite

Du, B. X.; Zhang, J. W.; Li, Gu; Liu, H. J.

doi:10.1109/icsd.2010.5568100

Cited by 4 publications

(2 citation statements)

References 7 publications

(6 reference statements)

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“…A lot of faults in power system are caused by the thermal accumulation [16][17][18][19]. Tracking failure caused by thermal accumulation is a typical thermal breakdown phenomenon [20][21][22][23]. It can be Manuscript received on 31 July 2012, in final form 21 June 2013. inferred that the inhibitory effect on thermal accumulation would have a great effect on the process of tracking.…”

Section: Introductionmentioning

confidence: 99%

Thermal accumulation and tracking failure process of BN-filler epoxy-matrix composite

Xiao

2013

IEEE Trans. Dielect. Electr. Insul.

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Epoxy Resin is widely used for insulation in electric devices, in spite of its weak ability of thermal conduction. One approach to obtain a higher thermal conductivity is to introduce inorganic fillers which have high thermal conductivity. The purpose of this paper is to study the effect of boron nitride (BN) particles on thermal breakdown tracking process. In this paper, epoxy samples with BN particles were prepared with different weight ratios. In order to investigate the relationship between thermal accumulation and tracking failure process, tracking failure process under different frequency of pulse discharge was investigated by an infrared thermal imager from the front and back side. Obtained results showed that with increasing the concentration of BN particles, the time to tracking failure increased. The added BN fillers have a very significant inhibitory effect on thermal accumulation. The improvement of thermal conduction plays an important role in the results of tracking failure. High frequency discharges are more likely to cause the thermal accumulation, which is unfavorable to the reliability of materials. It is concluded that the tracking failure performance could be improved by reducing the thermal accumulation.

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Section: Introductionmentioning

confidence: 99%

Thermal accumulation and tracking failure process of BN-filler epoxy-matrix composite

Xiao

2013

IEEE Trans. Dielect. Electr. Insul.

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“…A lot of faults in power system are caused by the thermal accumulation [41,42]. Tracking failure caused by thermal accumulation is a typical thermal breakdown phenomenon [43][44][45][46].…”

Section: Wang Fabricated Epoxy/bn Composites and A Value Of 123 W/(m•k)mentioning

confidence: 99%

Review of high thermal conductivity polymer dielectrics for electrical insulation

Xiao

2016

High Voltage

136

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Traditional insulation material is thermally insulating and has a low thermal conductivity. The miniaturisation and higher power of electrical devices would generate lots of heat, which have created new challenges to safe and stable operation of the grid. The development of insulating materials with high thermal conductivity provides a new method to solve these problems. The improvement of thermal conductivity would increase the ability to conduct heat and greatly reduce the operating temperature of the electrical equipment, which could reduce the equipment size and extend service life. On the other hand, inorganic thermally conductive particles and the improved thermal conductivity may have great effect on thermal breakdown. In this study, the factors affecting the thermal conductivity of dielectric polymer composites were explored. Intrinsic thermal conductive polymer and particle-filled thermal conductive composites were discussed. Effect of thermal conductivity, shape, size, surface treatment of the particle and prepare process on thermal properties of the composites were illustrated. This study focused on the electrical and thermal properties of thermally conductive epoxy, polyimide and polyethylene composites. Tracking failure caused by thermal accumulation is a typical thermal breakdown phenomenon. The performance of the resistance to tracking failure was studied for these composites. The results showed that thermal conductive particles improved the resistance to tracking failure. Finally, application of thermally conductive epoxy in electrical equipment was discussed. High Voltage

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Surface charge characteristics of direct-fluorinated epoxy /TiO2 nanocompsite

Jin

et al. 2016

2016 IEEE International Conference on Dielectrics (ICD)

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Application of nonlinear methods in tracking failure test of epoxy/SiO<inf>2</inf> nanocomposite

Cited by 4 publications

References 7 publications

Thermal accumulation and tracking failure process of BN-filler epoxy-matrix composite

Thermal accumulation and tracking failure process of BN-filler epoxy-matrix composite

Review of high thermal conductivity polymer dielectrics for electrical insulation

Surface charge characteristics of direct-fluorinated epoxy /TiO2 nanocompsite

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