一种SF<sub>6</sub>替代气体—氟碳气体的故障分解气体产生规律及基于分解物气体的故障判据研究

doi:10.19595/j.cnki.1000-6753.tces.180108

Abstract
Figure/Table
References
Related Citation (6)

Download: PDF (19030 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Fluorocarbon gas c-C₄F₈ is one of the potential substitution candidates for SF₆ because of its low global warming potential (GWP) and high dielectric performance. Gas insulated switchgears using c-C₄F₈ gas mixture will be a new type of environment-friendly device. The decomposition gas analysis method is an important way for fault diagnosis by measuring the decomposition gases generated by electrical fault, which has an irreplaceable role in some situation. However, different criteria are needed for different insulation gases. In this paper, the gas decomposition properties of fluorocarbon were studied by the simulating experiments of four kinds of faults. Accordingly, a fault diagnostic criterion was proposed. The experiment results show the main decomposition gases are C₂F₄, C₃F₆ under overheating fault, and the ratio of C₂F₄/C₃F₆ is different in different overheating temperature zones. Different form the overheating fault, the main decomposition gases under discharges are CF₄, C₂F₆, C₂F₄, C₃F₈ and C₃F₆. Meanwhile, the ratios of C₂F₄/CF₄, C₂F₄/C₂F₆ and C₃F₆/C₃F₈ are quite different for partial discharge, spark discharge and arc discharge. Therefore, a dynamic three-ratio method was proposed to identify three types of discharge faults by ratio variation tendency, which provides a way for monitoring faults of c-C₄F₈ insulation equipment.

Key words： Substitute gas for SF₆ fluorocarbon gas overheating fault discharge fault diagnostic criterion

Received: 19 January 2018 Published: 28 June 2019

PACS:

TM855

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Li Kang
	Guo Runrui
	Zhang Guoqiang

Cite this article:

Li Kang,Guo Runrui,Zhang Guoqiang. Study on Fault Decomposition Properties and Fault Diagnostic Criterion of Fluorocarbon Gas—a Substitute Gas for SF₆[J]. Transactions of China Electrotechnical Society, 2019, 34(12): 2649-2656.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180108 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I12/2649

[1] 肖登明. 环保型绝缘气体的发展前景[J]. 高电压技术, 2016, 42(4): 1035-1046.
Xiao Dengming.Development prosepect of gas insulation based on envieromental protection[J]. High Voltage Engineering, 2016, 42(4): 1035-1046.
[2] 张晓星, 肖焓艳, 黄杨珏. 低温等离子体处理SF₆废气综述[J]. 电工技术学报, 2016, 31(24): 16-24.
Zhang Xiaoxing, Xiao Hanyan, Huang Yangjue.A review of degradation of SF₆ waste by low temper- ature plasma[J]. Transactions of China Electro- technical Society, 2016, 31(24): 16-24.
[3] 肖焓艳, 张晓星, 肖淞, 等. 环境介质对介质阻挡放电降解SF₆影响的实验[J]. 电工技术学报, 2017, 32(20): 20-27.
Xiao Hanyan, Zhang Xiaoxing, Xiao Song, et al.Experiment of effects of ambient medium on SF₆ degradation for a double dielectrica barrier discharge reactor[J]. Transactions of China Electrotechnical Society, 2017, 32(20): 20-27.
[4] 李鑫涛, 林莘, 徐建源, 等. SF₆/N₂混合气体电击穿特性仿真及实验[J]. 电工技术学报, 2017, 32(20): 42-52.
Lin Xintao, Lin Xin, Xu Jianyuan, et al.Simulation and experiments of eielectric breakdown characteristics in SF₆/N₂ gas mixtures[J]. Transactions of China Electrotechnical Society, 2017, 32(20): 42-52.
[5] Christophorou L G, Olthoff J K, Green D S.Gases for electrical insulation and arc interruption: possible present and future alternatives to SF₆[J]. IEEE Power Engineering Review, 1998, 18(6): 10.1109/MTER. 1998.123673.
[6] Yamamoto O, Takuma T, Hamada S, et al.Applying a gas mixtures containing c-C₄F₈ as an insulation medium[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2001, 8(6): 1075-1081.
[7] Hiroaki Y, Osamu T, Yutaka Y, et al. Analysis of discharge voltage in c-C₄F₈ mixtures with N₂[J]. Papers of Technical Meeting on Plasma Science and Technology, 2000, PST-00(44-53): 39-44.
[8] Wu Biantao, Xiao Dengming, Liu Zhangsheng, et al.Analysis of insulation characteristics of c-C₄F₈ and N₂ gas mixtures by monte carlo method[J]. Journal of Physics D: Applied Physics, 2006, 39(19): 4204-4207.
[9] Zhang Liuchun, Xiao Dengming, Zhang Dong.Applying c-C₄F₈/CO₂ substituting SF₆ as insulation medium at low E/N (<400Td[C]//XVI Inter- national Conference on Gas Discharges and Their Applications, Xi’an, 2006: 749-752.
[10] Xing Weijun, Li Kang, Zhang Guoqiang, et al.Experimental study on the cooling performances of gas mixtures with fluorocarbon used in gas insulated transmission line[C]//Proceedings of the 13th Inter- national Conference on Electrical Machines and Systems (ICEMS2010), Incheon, 2010: 1469-1472.
[11] Li Kang, Xing Weijun, Zhang Guoqiang, et al.Study on decomposition gas for faults diagnostic of electrical equipment using fluorocarbons[C]//2010 International Conference on Power System Tech- nology, Hangzhou, China, 2010: 1-7.
[12] 李康, 张国强, 邢卫军, 等. c_C₄F₈及其与N₂混合绝缘气体在典型故障时分解生成物的试验分析[J].高电压技术, 2012, 38(4): 985-992.
Li Kang, Zhang Guoqiang, Xing Weijun, et al.Experiment analysis of decomposition products in typical fault of c-C₄F₈ gas and insulating gas mixture containing c-C₄F₈ and N₂[J]. High Voltage Engineering, 2012, 38(4): 985-992.
[13] 唐念, 乔胜亚, 李丽, 等. HF和H₂S作为气体绝缘组合电器绝缘缺陷诊断特征气体的有效性[J]. 电工技术学报, 2017, 32(19): 206-215.
Tang Nian, Qiao Shengya, Li Li, et al.Validity of HF and H₂S as target gases of insulation monitoring in gas insulated switchgear[J]. Transactions of China Electrotechnical Society, 2017, 32(19): 206-215.
[14] 赵明月, 林涛, 颜湘莲, 等. 基于氧同位素示踪法的电晕放电中H₂O和O₂对SF₆分解气体形成的影响[J]. 电工技术学报, 2018, 33(20): 4722-4728.
Zhao Mingyue, Lin Tao, Yan Xianglian, et al.Influence of trace H₂O and O₂ on SF₆ decomposition characteristics under corona discharge based on oxygen isotope tracer[J]. Transactions of China Electrotechnical Society, 2018, 33(20): 4722-4728.
[15] 乔胜亚, 周文俊, 王勇, 等. 典型吸附剂对GIS固体绝缘介质放电特征气体变化规律影响[J]. 电工技术学报, 2018, 33(19): 4627-4635.
Qiao Shengya, Zhou Wenjun, Wang Yong, et al.Effect of typical adsorbents on gas change characteristics of gas insulated switchgear solid insulation dielectric[J]. Transactions of China Elec- trotechnical Society, 2018, 33(19): 4627-4635.