Study on the Mathematical Model of Dielectric Recovery Characteristics in High Voltage SF<sub>6</sub> Circuit Breaker

LIN Xin (林莘); WANG Feiming (王飞鸣); XU Jianyuan (徐建源); XIA Yalong (夏亚龙); LIU Weidong (刘卫东)

doi:10.1088/1009-0630/18/3/02

Plasma Science and Technology > 2016 > 18(3): 223-229. > DOI: 10.1088/1009-0630/18/3/02

LIN Xin (林莘), WANG Feiming (王飞鸣), XU Jianyuan (徐建源), XIA Yalong (夏亚龙), LIU Weidong (刘卫东). Study on the Mathematical Model of Dielectric Recovery Characteristics in High Voltage SF₆ Circuit Breaker[J]. Plasma Science and Technology, 2016, 18(3): 223-229. DOI: 10.1088/1009-0630/18/3/02

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Study on the Mathematical Model of Dielectric Recovery Characteristics in High Voltage SF₆ Circuit Breaker

1Shenyang University of Technology, Shenyang 110870, China 2Tsinghua University, Beijing 100084, China

Funds: supported by Science and Technology Project of State Grid Corporation of China (No. GY17201200063), National Natural Science Foundation of China (No. 51277123), Basic Research Project of Liaoning Key Laboratory of Education Department (LZ2015055)

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Received Date: September 06, 2015

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Abstract

Abstract

According to the stream theory, this paper proposes a mathematical model of the dielectric recovery characteristic based on the two-temperature ionization equilibrium equation. Taking the dynamic variation of charged particle’s ionization and attachment into account, this model can be used in collaboration with the Coulomb collision model, which gives the relationship of the heavy particle temperature and electron temperature to calculate the electron density and temperature under different pressure and electric field conditions, so as to deliver the breakdown electric field strength under different pressure conditions. Meanwhile an experiment loop of the circuit breaker has been built to measure the breakdown voltage. It is shown that calculated results are in conformity with experiment results on the whole while results based on the stream criterion are larger than experiment results. This indicates that the mathematical model proposed here is more accurate for calculating the dielectric recovery characteristic, it is derived from the stream model with some improvement and refinement and has great significance for increasing the simulation accuracy of circuit breaker’s interruption characteristic.

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References (1)

References

1 Lin Xin. 2011, The Modern High Voltage Electrical Technology. Mechanical Industry Press, Beijing (in Chinese) 2 Zhang Q, Yan J D, Fang M T C. 2014, Journal of Physics D: Applied Physics, 47: 215201 3 Rong Mingzhe, Yang Qian, Fan Chunduo. 2004, Proceedings of the CSEE, 2: 017 (in Chinese) 4 Zhang Junmin. 2004, Proceedings of the CSEE, 7: 037(in Chinese) 5 Zhu Kai, Li Xingwen, Zhao Hu. 2014, Proceedings of the CSEE, 34: 3512 (in Chinese) 6 Zhong Jianying, Lin Xin, He Rongtao. 2006, Proceedings of the CSEE, 26: 154 (in Chinese) 7 Wu Y, Wang W, Rong M, et al. 2014, Dielectrics and Electrical Insulation, 21: 129 8 Sun H, Rong M, Wu Y, et al. 2015, Journal of Physics D: Applied Physics, 48: 055201 9 Wang Feiming, Lin Xin, Xu Jianyuan. 2014, High Voltage Engineering, 40: 3073 (in Chinese) 10 Lin Xin, Li Xintao, Wang Feiming, et al. 2014, High Voltage Engineering, 40: 3125 (in Chinese) 11 Chen Xi. 2006, Transfer and Flow of Heat Plasma. Science Publishing Company, Beijing (in Chinese) 12 Chervy B, Gleizes A, Razafinimanana M. 1994, Journal of Physics D: Applied Physics, 27: 1193 13 Frost L S, Liebermann R W. 1971, Proceedings of the IEEE, 59: 474 14 Wu Zhancheng, Zhang Xijun, Hu Youzhi. 2012, Gas Discharge. National Defense Industry Press, Beijing (in Chinese)

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