Simulation Analysis of Arc Characteristics on Breaking Zero Zone in High Voltage SF6 Circuit Breaker

被引：0
|
作者：
Wang F. [1 ,2 ]
Zhao Y. [1 ,2 ]
Shi K. [1 ,3 ]
Li B. [1 ,3 ]
Zhang B. [1 ,3 ]
Xu Z. [1 ,2 ]
机构：
[1] Research Institute of State Grid Liaoning Electric Power Company, Shenyang
[2] Liaoning Dongke Power Co., Ltd., Shenyang
[3] High Voltage and Large Current Laboratory of State Grid Corporation, Shenyang
来源：
Gaodianya Jishu/High Voltage Engineering | 2019年 / 45卷 / 05期
关键词：
Arc characteristics; Circuit breaker; Plasma; SF[!sub]6[!/sub; Zero zone;
D O I：
10.13336/j.1003-6520.hve.20190430009
中图分类号：
学科分类号：
摘要：
In order to analyze the physical process between zero zone arc plasma and airflow intermolecular energy transport in the high voltage SF6 circuit breaker, and find the optimal control strategy of small current arc switching, the simulation analysis of arc characteristics on breaking zero zone is presented. The coupled field calculation physics of the breaking arc energy in the circuit breaker was established to calculate the spatial distribution of the zero zone arc plasma density and thermodynamic characteristics parameters. Using the comprehensive evaluation method of multiple physical state parameters, the effects of different breaking current, arcing time, breaking speed and other factors on the energy transport process between zero zone arc and gas flow were analyzed, the variation law and parameter range of the zero zone arc plasma physical properties were obtained. The calculation results show that there is a significant convection effect between the airflow and the arc. When the insulation break point with a temperature less than 4 000 K, a density greater than 3 kg/m3, enthalpy value less than 1.6×107 J/kg, and a conductivity less than 800 S/m, the arc extinguishes. The research results can provide important theoretical basis for the design of the arc-extinguishing chamber of the high-voltage SF6 circuit breaker, the selection of the mechanical characteristics of the operation, and the physical characteristics of the arc-extinguishing process. © 2019, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
引用
收藏
页码：1420 / 1428
页数：8
相关论文
共 24 条
  • [1] Lin X., The Modern High Voltage Electrical Technology, pp. 323-334, (2006)
  • [2] Liu Z., Over-voltage and Insulation Coordination of UHV AC Transmission System, pp. 33-37, (2008)
  • [3] Fu Z., Chen W., Li Z., Et al., Measurement method and influencing factors of dynamic contact resistance of SF<sub>6</sub> circuit breaker, High Voltage Engineering, 43, 5, pp. 1535-1542, (2017)
  • [4] Song D., Cheng L., Lin Z., Et al., Review of arc thermal plasma modeling, simulation and application, High Voltage Engineering, 44, 3, pp. 932-943, (2018)
  • [5] Wang F., Research on mechanism of non-equilibrium plasma arc and breaking characteristics in high-voltage SF<sub>6</sub> circuit breakers, (2016)
  • [6] Rong M., Liu D., Li M., Et al., Research status and new progress on the numerical simulation of non-equilibrium plasmas, Transactions of China Electrotechnical Society, 29, 6, pp. 271-282, (2014)
  • [7] Li H., Yu D., Sun W., Et al., State-of-the-art of atmospheric discharge plasmas, High Voltage Engineering, 42, 12, pp. 3697-3727, (2016)
  • [8] Wang R., Hai B., Tian S., Et al., Optimization of dielectric material surface charge measurement and impact of plasma treatment on their surface electrical characteristics, High Voltage Engineering, 43, 6, pp. 1808-1815, (2017)
  • [9] Wang W., Rong M., Yan J.D., Et al., Investigation of the dynamic characteristics and decaying behavior of SF6 arcs in high voltage circuit breakers during current-zero period: a review, Proceedings of the CSEE, 35, 8, pp. 2059-2072, (2015)
  • [10] Lin X., Wang F., Liu W., Et al., Research on calculation and experiment of closing pre-strike characteristic in high voltage SF<sub>6</sub> circuit breaker, Proceedings of the CSEE, 36, 5, pp. 1445-1452, (2016)
123