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GIS中盆式绝缘子沿面放电的新特征气体CS2

DOI: 10.13336/j.1003-6520.hve.2015.03.020, PP. 848-856

Keywords: 气体绝缘组合电器,盆式绝缘子,沿面放电,特征气体,CS2,故障诊断

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Abstract:

盆式绝缘子沿面放电是气体绝缘组合电器(GIS)的主要绝缘故障形式。为监测盆式绝缘子的绝缘状况,研究GIS内环氧树脂固体绝缘介质发生沿面放电情况下SF6特征分解产物的变化规律,在小型模拟平台上试验发现,CS2是盆式绝缘子沿面放电时SF6气体生成的产物,并在110kVGIS母线段实体绝缘子沿面放电试验中得到验证。用B3P86量子化学理论计算方法,得出了SF6在盆式绝缘子沿面放电条件下CS2的产生途径和能量条件。试验与理论计算结果表明,盆式绝缘子等固体绝缘介质发生沿面放电时GIS的内部发生复杂的化学反应,会有多种途径生成CS2,且由盆式绝缘子等环氧树脂介质表面炭化后提供碳源。CS2是一种可用于GIS中盆式绝缘子沿面放电故障诊断的特征气体。将CS2作为特征气体应用于生产实际检测,成功发现多起运行中的GIS涉及盆式绝缘子沿面放电导致绝缘损坏的潜伏性缺陷。

References

[1]  Qi B, Li C R, Zhao L X, et al . Partial discharge initiated by free moving metallic particles on GIS insulator surface: severity diagnosis and assessment[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2014, 21(2): 766-774.
[2]  Okubo H. Recent activity and future trend on ageing characteristics of electrical insulation in GIS[C]∥Proceedings of the 4th International Conference on Properties and Applications of Dielectric Materials. Brisbane, Australia: [s.n.], 1994: 837-840.
[3]  Eriksson A, Pettersson K G, Krenicky A, et al . Experience with gas insulated substations in the USA[J]. IEEE Transactions on Power Delivery, 1995, 10(1):210-218.
[4]  Chen J, Zhou W J, Yu J H, et al . Insulation condition monitoring of epoxy spacers in GIS using a decomposed gas CS 2 [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2013, 20(6): 2152-2157.
[5]  丁登伟,唐 诚,高文胜,等. GIS中典型局部放电的频谱特征及传播特性[J]. 高电压技术,2014,40(10):3243-3251. DING Dengwei, TANG Cheng, GAO Wensheng, et al . Frequency attributes and propagation properties of typical partial discharge in GIS[J]. High Voltage Engineering, 2014, 40(10): 3243-3251.
[6]  Okubo H, Matsushita A, Watanabe S, et al . Investigation of electrical insulation diagnosis of solid insulators in GIS by partial discharge current pulse waveform analysis (PD-CPWA)[C]∥Transmission and Distribution Conference and Exhibition. [S.l.]: IEEE/PES, 2002: 925-930.
[7]  Qi B, Li C R, Geng B B, et al . Severity diagnosis and assessment of the partial discharge provoked by high-voltage electrode protrusion on GIS insulator surface[J]. IEEE Transactions on Power Delivery, 2011, 26(4): 2363-2369.
[8]  Braun J M, Rizzetto S, Fujimoto N, et al . Modulation of partial discharge activity in GIS insulators by X-ray irradiation[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 1991, 26(3): 460-468.
[9]  卢彦辉,段晓辉,张友鹏,等. 基于SolidWorks 和 ANSYS 的盆式绝缘子设计与分析[J]. 科技信息,2010,25(1):37. LU Yanhui, DUAN Xiaohui, ZHANG Youpeng, et al . Design and analysis of salver-shaped insulator based on SolidWorks and ANSYS[J]. Information Technology, 2010, 25(1): 37.
[10]  Tang J, Zhou Q, Tang M, et al . Study on mathematical model for VHF partial discharge of typical insulated defects in GIS[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2007, 14(1): 30-38.
[11]  王 蓓,张贵新,王 强,等. SF 6 及空气中绝缘子表面电荷的消散过程分析[J]. 高电压技术,2011,37(1):99-103. WANG Bei, ZHANG Guixin, WANG Qiang, et al . Analysis of surface charge decay process on insulators in SF 6 and air[J]. High Voltage Engineering, 2011, 37(1): 99-103.
[12]  唐 炬,范 敏,谭志红,等. SF 6 局部放电分解组分光声检测信号交叉响应处理技术[J]. 高电压技术,2013,39(2):257-264. TANG Ju, FAN Min, TAN Zhihong, et al . Crossover response processing technology of photoacoustic spectroscopy signal of SF 6 decomposition components under partial discharge[J]. High Voltage Engineering, 2013, 39(2): 257-264.
[13]  Chu F Y. SF 6 decomposition in gas-insulated equipment[J]. IEEE Transactions on Electrical Insulation, 1986, 21(5): 693-725.
[14]  唐 炬,胡 瑶,姚 强,等. 不同气压下SF 6 的局部放电分解特性[J]. 高电压技术,2014,40(8):2257-2263. TANG Ju, HU Yao, YAO Qiang, et al . Decomposition characteristics of SF6 under partial discharge at different pressures[J]. High Voltage Engineering, 2014, 40(8): 2257-2263.
[15]  Shinkai H, Goshima H, Yashima M. A study on condition assessment method of gas insulated switchgear. part II: influence of moisture in the SF 6 , detection of a partial discharge on a spacer, repetition discharge and overheating by incomplete contact[J]. Electrical Engineering in Japan, 2011, 176(2): 22-30.
[16]  王 宇,李 智,姚唯建,等. 广东省 220 kV及以上GIS分解产物分析[J]. 高电压技术,2009,35(4):823-827. WANG Yu, LI Zhi, YAO Weijian, et al . Analysis of SF 6 byproducts of gas insulated switchgear(220 kV and above) in Guangdong Province[J]. High Voltage Engineering, 2009, 35(4): 823-827.
[17]  Altmann J A, Handy N C, Eingamels V. A study of sulphur-containing molecules using Hartree-Fock, MP2 and DFT(hybrid) methodologies[J]. Molecular Physics, 1997, 92(3): 339-352.
[18]  Chen L, Woon D E, Dunning T H. Bonding in ClF( n ) ( n =1-7) molecules: further insight into the electronic structure of hypervalent molecules and recoupled pair bonds[J]. The Journal of Physical Chemistry A, 2009, 113(45): 12645.
[19]  裘吟君,袁静帆,陈晓琳,等. SF 6 新气痕量杂质对SF 6 电气设备寿命的影响[J]. 高电压技术,2013,39(2):360-364. QIU Yinjun, YUAN Jingfan, CHEN Xiaolin, et al . Influence of trace impurities from SF 6 new gas on the life of SF 6 -insulating electrical equipment[J]. High Voltage Engineering, 2013, 39(2): 360-364.
[20]  王卫东,赵现平,王达达,等. GIS局部放电检测方法的分析研究[J]. 高压电器,2012,48(8):13-17. WANG Weidong, ZHAO Xianping, WANG Dada, et al . Analysis on the method of GIS partial discharge detection[J]. High Voltage Apparatus, 2012, 48(8): 13-17.

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