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Temperature rise of power equipment in service serionsly affect the lifetime of insulation, so many researchers have focused on space charge measurements at high temperature. But the changes of polymeric properties (e.g. sound impedance, Young’s modulus, density, velocity of sound wave, decay characteristic etc.) at high temperature make measurement of space charge profiles in polymer inaccurate. What is more, the changes of polymeric properties are more complex under temperature gradient. In this paper, based on the propagation characteristic of sound wave in pulsed electroacoustic method and temperature dependence of polyethylene properties, the effect of temperature gradient on space charge measurement is analyzed and the space charge waveform is recovered.
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Keywords:
- temperature gradient /
- polyethylene /
- space charge /
- recovery
[1] Yang Q, An Z L, Zheng F H, Zhang Y W 2008 Acta Phys. Sin. 57 3834 (in Chinese) [杨 强、安振连、郑飞虎、张冶文 2008 物理学报 57 3834]
[2] An Z L, Yang Q, Zheng F H, Zhang Y W 2007 Acta Phys. Sin. 56 5502 (in Chinese) [安振连、杨 强、郑飞虎、张冶文 2007物理学报 56 5502]
[3] Chong Y L, Chen G, Miyake H, Matsui K, Tanaka Y, Takada T 2006 J. Phys. D: Appl. Phys. 39 1658
[4] Liu F D, Yang B T, Tu D M, Liu Y N 1992 Acta Phys. Sin. 41 333 (in Chinese) [刘付德、杨百屯、屠德民、刘耀南 1992 物理学报 41 333]
[5] Yang Q, An Z L, Zheng F H, Zhang Y W 2009 Acta Phys. Sin. 58 8529 (in Chinese) [杨 强、安振连、郑飞虎、张冶文 2009 物理学报 58 8529]
[6] Fukunage K 2004 IEEE Electr. Insul. Mag. 20 18
[7] Zheng F H, Zhang Y W, Wu C S, Li J X, Xia Z F 2003 Acta Phys. Sin. 52 1137 (in Chinese) [郑飞虎、张冶文、吴长顺、李吉晓、夏钟福 2003物理学报 52 1137]
[8] Maeno T 1999 Trans. IEE Jpn. 119- A 1114
[9] Wu C Y, Zhong L S, Wang X, Tu D M 2005 Proc. CSEE 25 137 (in Chinese) [吴超一、钟力生、王 霞、屠德民 2005 中国电机工程学报 25 137]
[10] Fabiani D, Montanari G C, Laurent C, Teyssedre G, Morshuis F H F, Bodega R, Dissado L A 2008 IEEE Electr. Insul. Mag. 24 5
[11] Fu M, Dissado L A, Chen G, Fothergill J C 2008 IEEE Trans. Dielectr. Electr. Insul. 10 851
[12] Bambery K R, Fleming R J 1997 J. Therm. Anal. 50 19
[13] Zhang C, Kaneko K, Mizutani T 2001 Appl. Phys. Lett. 79 3839
[14] Nishimura H, Inoue F, Nakashiba A 1994 Polym. Engng. Sci. 34 1529
[15] Akio N, Hiroyuki N, Fumio I, Tomokazu N, Katsuhiko H, Hideo N 1993 Polym. Engng. Sci. 33 1146
[16] Fan T B, Zhang D, Zhang Z, Ma Y, Gong X F 2008 Chin. Phys. B 17 3372
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[1] Yang Q, An Z L, Zheng F H, Zhang Y W 2008 Acta Phys. Sin. 57 3834 (in Chinese) [杨 强、安振连、郑飞虎、张冶文 2008 物理学报 57 3834]
[2] An Z L, Yang Q, Zheng F H, Zhang Y W 2007 Acta Phys. Sin. 56 5502 (in Chinese) [安振连、杨 强、郑飞虎、张冶文 2007物理学报 56 5502]
[3] Chong Y L, Chen G, Miyake H, Matsui K, Tanaka Y, Takada T 2006 J. Phys. D: Appl. Phys. 39 1658
[4] Liu F D, Yang B T, Tu D M, Liu Y N 1992 Acta Phys. Sin. 41 333 (in Chinese) [刘付德、杨百屯、屠德民、刘耀南 1992 物理学报 41 333]
[5] Yang Q, An Z L, Zheng F H, Zhang Y W 2009 Acta Phys. Sin. 58 8529 (in Chinese) [杨 强、安振连、郑飞虎、张冶文 2009 物理学报 58 8529]
[6] Fukunage K 2004 IEEE Electr. Insul. Mag. 20 18
[7] Zheng F H, Zhang Y W, Wu C S, Li J X, Xia Z F 2003 Acta Phys. Sin. 52 1137 (in Chinese) [郑飞虎、张冶文、吴长顺、李吉晓、夏钟福 2003物理学报 52 1137]
[8] Maeno T 1999 Trans. IEE Jpn. 119- A 1114
[9] Wu C Y, Zhong L S, Wang X, Tu D M 2005 Proc. CSEE 25 137 (in Chinese) [吴超一、钟力生、王 霞、屠德民 2005 中国电机工程学报 25 137]
[10] Fabiani D, Montanari G C, Laurent C, Teyssedre G, Morshuis F H F, Bodega R, Dissado L A 2008 IEEE Electr. Insul. Mag. 24 5
[11] Fu M, Dissado L A, Chen G, Fothergill J C 2008 IEEE Trans. Dielectr. Electr. Insul. 10 851
[12] Bambery K R, Fleming R J 1997 J. Therm. Anal. 50 19
[13] Zhang C, Kaneko K, Mizutani T 2001 Appl. Phys. Lett. 79 3839
[14] Nishimura H, Inoue F, Nakashiba A 1994 Polym. Engng. Sci. 34 1529
[15] Akio N, Hiroyuki N, Fumio I, Tomokazu N, Katsuhiko H, Hideo N 1993 Polym. Engng. Sci. 33 1146
[16] Fan T B, Zhang D, Zhang Z, Ma Y, Gong X F 2008 Chin. Phys. B 17 3372
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