Experiment and Simulation of the Effect of Nanoparticles on Oil-Paper Composite Insulation System

Jian SHI; Bing LUO; Wenxia SIMA; Hansheng CAI

doi:10.13648/j.cnki.issn1674-0629.2015.03.010

PDF(1464 KB)

South Power Sys Technol ›› 2015, Vol. 9 ›› Issue (3) : 51-56. DOI: 10.13648/j.cnki.issn1674-0629.2015.03.010

High Voltage and Insulation

Experiment and Simulation of the Effect of Nanoparticles on Oil-Paper Composite Insulation System

Author information +

History +

Abstract

Traditional transformer oil-paper composite insulation is becoming increasingly difficult to meet the demands of insulation system with large capacity and miniaturization at ultra-high voltage level. To improve the insulation properties of oil-paper insulation, the effect of nanoparticles on insulation properties of oil-paper composite insulation system is investigated. The withstand voltages of traditional and nanoparticle modifying oil-paper composite system are tested and compared. The streamer discharge in transformer oil is simulated. Based on the model, the electric field and space charge distributions, and the surface charge density on the paper insulation are obtained and analyzed in this paper. The results show that the nanoparticle modifying transformer oil-paper system has better insulation property than the traditional oil-paper system (10% increase) and the surface charge density decreases from 0.020 C/m² in pure oil-paper system to 0.016 C/m² in nanoparticle modified oil-paper system. The nanoparticles in transformer oil not only restrain the streamer development in the oil, but also restrain surface streamer and decrease the surface charge density on the paper insulation, which are beneficial for the improvement of the oil-paper insulation.

Key words

transformer oil / impulse insulation property / streamer / surface charge / nanoparticle modifying / oil-paper composite insulation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Jian SHI , Bing LUO , Wenxia SIMA , et al. Experiment and Simulation of the Effect of Nanoparticles on Oil-Paper Composite Insulation System[J]. Southern Power System Technology. 2015, 9(3): 51-56 https://doi.org/10.13648/j.cnki.issn1674-0629.2015.03.010

References

List( Publishing order | Descend order by publishing year | Descend order by cited within ) Chart analysis

[1]	李毅, 卢世才. 换流变压器网侧套管绝缘在线监测系统研究[J]. 南方电网技术, 2011, 5(2):45-47. LI Yi, LU Shicai. Research of the online insulation monitoring system on the netside bushing of converter transformers[J]. Southern Power System Technology, 2011, 5(2):45-47. Cited in this article [1]

[2]	姚森敬, 田杰, 汤明杰, 等. 基于频域介电谱法的变压器油纸绝缘套管受潮状况分析[J]. 南方电网技术, 2014, 8(4):52-56. YAO Senjing, TIAN jie, TANG Mingjie, et al. Study on moisture assessment of oil paper insulated bushings based on frequency domain spectrum[J]. Southern Power System Technology, 2014, 8(4):52-56. Cited in this article [1]

[3]	VLADIMIR S, ARNE H, ARNOLD R, et al. AC (60 Hz) and impulse breakdown strength of a colloidal fluid based on transformer oil and magnetite nanoparticles[C]// Proceedings of IEEE International Symposium on Electrical Insulation, June 7-10,1998, Arlington:IEEE,1998:619-622. Cited in this article [2]

[4]	HWANG J G, ZAHN M, FRANCIS M, et al. Effects of nanoparticle charging on streamer development in transformer oil-based nanofuids[J]. Journal of Applied Physics, 2010, 107(1):1-17. Cited in this article [4]

[5]	周远翔, 王云杉, 田冀焕, 等. 纳米改性变压器油的破坏特性[J]. 高电压技术, 2010, 36(5):1155-1159. ZHOU Yuanxiang, WANG Yunshan, TIAN Jihuan, et al. Breakdown characteristics in transformer oil modified by nanoparticles[J]. High Voltage Engineering, 2010, 36(5):1155-1159. Cited in this article [1]

[6]	DU Yuefan, LÜ Yuzhen, LI Chengrong, et al. Effect of electron shallow trap on breakdown performance of transformer oil-based nanofluids[J]. Journal of Applied Physics, 2011, 110(10):1-4. Cited in this article [1]

[7]	ZOU Ping, LI Jian, SUN Caixin, et al. Dielectric properties and electrodynamic process of natural ester-based insulating nanofluid[J]. Modern Physics Letters B.2011, 25(25):2021-2031. Cited in this article [1]

[8]	BERKOVSKI B, BASHTOVOY V. Magnetic fluids and applications handbook[M]. New York: Begall House Inc,1996. Cited in this article [1]

[9]	CROFTS D W. The electrification phenomena in power transformers[J]. IEEE Transactions on Electrical Insulation, 1988, 23(1): 137-146. Cited in this article [1]

[10]	OKUBO H, WAKAMATSU M, INOUE N, et al. Charge behavior in flowing oil in oil/pressboard insulation system by electro-optic field measurement[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2003, 10(6): 956-962. Cited in this article [1]

[11]	GB/DL 418—1991, 绝缘液体雷电冲击击穿电压测定法[S]. Cited in this article [1]

[12]	COMSOL Multiphysics[R/OL]. http://www.comsol.com/,2013. http://www.comsol.com/ Cited in this article [1]

[13]	CHADBAND W G, On variations in the propagation of positive discharges between transformer oil and silicone fluid[J]. Journal of Physics D:Applied Physics, 1980, 24(13):1299-307. Cited in this article [1]

[14]	TORSHIN Y V. On the existence of leader discharges in mineral oil[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 1995, 2(1):167-178. Cited in this article [1]

[15]	MASSALA G, LESAINT O, Positive streamer propagation in large oil gaps:electrical properties of streamers[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 1998, 5(3):371-381. Cited in this article [1]

[16]	GOMER R. Field emission, field ionization, and field desorption[J]. Surface Science, 1994, 299: 129-152. Cited in this article [1]

[17]	ROSENSWEIG R E. Ferrohydrodynamics[M]. London: Cambridge University Press,1985. Cited in this article [1]

[18]

Gallot-Lavallée

, REBOUD

J L

, RAIN

. Multiphysics simulation to improve the understanding of pressure wave propagation techniques applied to composite polymers[C]// 2006 IEEE Conference on.Electrical Insulation and Dielectric Phenomena, October 15-18,2006, Kansas city: IEEE, 2006: 61-64.

Cited in this article [1]

[19]	LESAINT T, TOP V. Streamer initiation in mineral oil:electrode surface effect under impulse voltage[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2002, 9(1):84-91. Cited in this article [1]