Effects of aluminum nitride nanoparticles on the space charge behavior of cellulose paper
Source abstract
Abstract
Cellulose insulation paper as a part of oil–paper insulation systems plays an important role in the reliability of converter transformers. The reliability of converter transformers equipped with traditional cellulose paper is adversely affected by space charge under DC voltage. The addition of nanoparticles into other dielectrics has been demonstrated to improve electrical performance. However, studies on the space charge behavior of cellulose paper reinforced with nanoparticles are rarely reported. This paper presents the results of a study aimed at elucidating the effect of nano-aluminum nitride (AlN) concentration on the space charge behavior of cellulose paper. Samples with various nano-AlN concentrations were fabricated and pretreated first. The micro-morphologies of prepared cellulose papers were observed using a field-emission scanning electron microscope. The space charge distribution was measured using a pulsed electroacoustic instrument. The results show the dependence of the charge injection as well as charge dissipation on the concentration of nano-AlN. The isothermal decay current method is used to obtain trap information. Based on the density and distribution of traps, the underlying mechanism of the effect of various concentrations on the space charge behavior is theoretically explained.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High voltage insulation and dielectric phenomena · Power Transformer Diagnostics and Insulation · Lightning and Electromagnetic Phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Sarathi R, Koperundevi G (2009) Investigation of partial discharge activity of single conducting particle in transformer oil under DC voltages using UHF technique. IET Sci Meas Technol 3(5):325–33310.1049/iet-smt.2008.0136 ↗
2. Sarathi R, Reid AJ, Martin DJ (2008) Partial discharge study in transformer oil due to particle movement under DC voltage using the UHF technique. Electr Power Syst Res 78(11):1819–182510.1016/j.epsr.2008.03.022 ↗
3. Du BX, Zhang JG, Liu DS (2015) Interface charge behavior of multi-layer oil-paper insulation under DC and polarity reversal voltages. IEEE Trans Dielectr Electr Insul 22(5):2628–263810.1109/TDEI.2015.005052 ↗
4. Sarathi R, Koperundevi G (2008) UHF technique for identification of partial discharge in a composite insulation under AC and DC voltages. IEEE Trans Dielectr Electr Insul 15(6):1724–173010.1109/TDEI.2008.4712677 ↗
5. Huang M, Zhou Y, Chen W, Lu L, Jin F, Huang J (2015) Space charge dynamics at the physical interface in oil-paper insulation under DC voltage. IEEE Trans Dielectr Electr Insul 22(3):1739–174610.1109/TDEI.2015.7116372 ↗
6. Wu K, Zhu Q, Wang H, Wang X, Li S (2014) Space charge behavior in the sample with two layers of oil-immersed-paper and oil. IEEE Trans Dielectr Electr Insul 21(4):1857–186510.1109/TDEI.2014.004241 ↗
7. Wang Y, Li J, Wu S, Sun P (2013) Influence of electrical aging on space charge dynamics of oil-impregnated paper insulation under AC-DC combined voltages. J Electr Eng Technol 8(6):1512–151910.5370/JEET.2013.8.6.1512 ↗
8. Zhou Y, Huang M, Chen W, Lu L, Jin F, Huang J (2015) Space charge behavior evolution with thermal aging of oil-paper insulation. IEEE Trans Dielectr Electr Insul 22(3):1381–138810.1109/TDEI.2015.7116326 ↗
9. Kohman GT (1939) Cellulose as an insulating material. Ind Eng Chem 31(7):807–81710.1021/ie50355a005 ↗
10. Amin M, Ali M (2015) Polymer nanocomposites for high voltage outdoor insulation applications. Rev Adv Mater Sci 40(3):276–294
11. Lewis TJ (1994) Nannometric dielectrics. IEEE Trans Dielectr Electr Insul 1(5):812–82510.1109/94.326653 ↗
12. Balazs AC, Emrick T, Russell TP (2006) Nanoparticle polymer composites: where two small worlds meet. Science 314(5802):1107–111010.1126/science.1130557 ↗
13. Singha S, Thomas MJ (2008) Permittivity and tan delta characteristics of epoxy nanocomposites in the frequency range of 1 MHz-1 GHz. IEEE Trans Dielectr Electr Insul 15(1):2–1110.1109/T-DEI.2008.4446731 ↗
14. Roy M, Nelson JK, MacCrone RK, Schadler LS (2007) Candidate mechanisms controlling the electrical characteristics of silica/XLPE nanodielectrics. J Mater Sci 42(11):3789–3799. doi: 10.1007/s10853-006-0413-010.1007/s10853-006-0413-0 ↗
15. Nelson JK, Fothergill JC (2004) Internal charge behaviour of nanocomposites. Nanotechnology 15(5):58610.1088/0957-4484/15/5/032 ↗
16. Singha S, Thomas MJ (2008) Dielectric properties of epoxy nanocomposites. IEEE Trans Dielectr Electr Insul 15(1):12–2310.1109/T-DEI.2008.4446732 ↗
17. Xu Y, Chung DDL, Mroz C (2001) Thermally conducting aluminum nitride polymer-matrix composites. Compos A 32(12):1749–175710.1016/S1359-835X(01)00023-9 ↗
18. Takala M, Karttunen M, Pelto J, Salovaara P, Munter T, Honkanen M, Kannus K (2008) Thermal, mechanical and dielectric properties of nanostructured epoxy-polyhedral oligomeric silsesquioxane composites. IEEE Trans Dielectr Electr Insul 15(5):1224–123510.1109/TDEI.2008.4656229 ↗
19. Montanari GC, Fabiani D, Dissado LA (2011) A new conduction phenomenon observed in polyethylene and epoxy resin: ultra-fast soliton conduction. J Polym Sci B. 49(16):1173–118210.1002/polb.22296 ↗
20. Lewis TJ (2005) Interfaces: nanometric dielectrics. J Phys D 38(2):20210.1088/0022-3727/38/2/004 ↗
21. Tanaka T, Kozako M, Fuse N, Ohki Y (2005) Proposal of a multi-core model for polymer nanocomposite dielectrics. IEEE Trans Dielectr Electr Insul 12(4):669–68110.1109/TDEI.2005.1511092 ↗
22. Zou C, Fothergill JC, Rowe SW (2008) The effect of water absorption on the dielectric properties of epoxy nanocomposites. IEEE Trans Dielectr Electr Insul 15(1):106–11710.1109/T-DEI.2008.4446741 ↗
23. Yuan Z, Yu J, He Z, Wu X, Rao B, Lu S, Jiang N (2014) Improved thermal properties of epoxy composites filled with thermotropic liquid crystalline epoxy grafted aluminum nitride. Fiber Polym 15(12):2581–259010.1007/s12221-014-2581-x ↗
24. He Z, Dai W, Yu J, Pan L, Xiao X, Lu S, Jiang N (2014) Enhanced thermal and mechanical properties of polyimide composites by mixing thermotropic liquid crystalline epoxy grafted aluminum nitride. J Polym Res 21(11):1–10
25. Zhou Y, Yao Y, Chen CY, Moon K, Wang H, Wong CP (2014) The use of polyimide-modified aluminum nitride fillers in AlN & PI/Epoxy composites with enhanced thermal conductivity for electronic encapsulation. Sci Rep 4:477910.1038/srep04779 ↗
26. Keblinski P, Phillpot SR, Choi SUS, Eastman JA (2002) Mechanisms of heat flow in suspensions of nano-sized particles (nanofluids). Int J Heat Mass Transf 45(4):855–86310.1016/S0017-9310(01)00175-2 ↗
27. Morshuis P, Jeroense M (1997) Space charge measurements on impregnated paper: a review of the PEA method and a discussion of results. IEEE Electr Insul Mag 13(3):26–3510.1109/57.591529 ↗
28. Yewen Z, Baitun Y, Demin T, Yaonan L (1989) Measuring distribution of carrier trap energy state density at interface of dielectric with step pressure wave method. Electr Insul Dielectr Phenom 21(11):303–30810.1109/CEIDP.1989.69563 ↗