12kV固体绝缘开关柜缘气隙缺陷的放电特征

doi:10.19595/j.cnki.1000-6753.tces.170702

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (551 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to obtain the air-gap discharge characteristics of the internal insulation material in 12kV solid insulated switchgears, an experiment platform of internal insulating material air-gap discharge was built. The partial discharge signals were measured under different voltage amplitudes, air-gap diameters and frequencies. The three-dimensional characteristic spectrums of the partial discharge of air-gap defects under different voltage amplitudes were extracted and analyzed, and the differences of partial discharge under positive and negative half cycles at different frequencies were compared. The results show that different voltage amplitudes will affect the amount and number of discharge in case of the air-gap defects in the insulation material of solid insulated switchgear. The higher the harmonic frequency, the more the number of discharges per cycle, but the total discharges in the positive and negative half cycles are maintained at a certain level, without major fluctuations. Moreover, the larger the air gap diameter of the insulating medium, the less the number of discharges, the greater the discharge capacity of each discharge, the more serious the hazard. The three-dimensional graphs obtained under different experimental conditions can be used to identify the air-gap defect discharge of solid insulated switchgear as well as providing the theoretical guidance for the defect discharge of insulating material in solid insulated switchgear.

Key words： Solid insulation switchgear air-gap defects characteristic spectrum partial discharge

Received: 24 May 2017 Published: 22 June 2018

PACS:

TM835

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170702 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I12/2894

[1] 叶海蓉, 葛乐矣, 钟桂英. 固体绝缘开关柜在线检测技术[J]. 中国电力, 2016, 49(9): 35-40.
Ye Hairong, Ge Leyi, Zhong Guiying.Online detection technology of solid insulation RMU based on infrared thermal imaging[J]. Electric Power, 2016, 49(9): 35-40.
[2] 袁端磊, 王海燕, 杨芳, 等. 固体绝缘件长时间正常工作条件下电老化寿命评估方法研究[J]. 高压电器, 2017, 53(4): 31-35, 40.
Yuan Duanlei, Wang Haiyan, Yang Fang, et al.Researches on a probabilistic indicating method for assessing end-of-life of solid insulating materials under electrical stress at long-time normal working conditions[J]. High Voltage Apparatus, 2017, 53(4): 31-35, 40.
[3] 张强, 李成榕. X射线激励下局部放电的研究进展[J]. 电工技术学报, 2017, 32(8): 22-32.
Zhang Qiang, Li Chengrong.Review on X-ray induced partial discharge[J]. Transactions of China Electrotechnical Society, 2017, 32(8): 22-32.
[4] 周沙, 景亮. 基于矩特征与概率神经网络的局部放电模式识别[J]. 电力系统保护与控制, 2016,44(3): 98-102.
Zhou Sha, Jing Liang.Pattern recognition of partial discharge based on moment features and probabilistic neural network[J]. Power System Protection and Control, 2016, 44(3): 98-102.
[5] 杨志超, 范立新, 杨成顺, 等. 基于GK模糊聚类和LS-SVC的GIS局部放电类型识别[J]. 电力系统保护与控制, 2014, 42(20): 38-45.
Yang Zhichao, Fan Lixin, Yang Chengshun, et al.Charge in gas insulated switchgears based on GK fuzzy clustering & LS-SVM[J]. Power System Protection and Control, 2014, 42(20): 38-45.
[6] 杨帆, 杨旗, 程鹏, 等. 电缆接头内部气隙放电缺陷下的绝缘劣化程度表征方法[J]. 电工技术学报, 2017, 32(2): 24-32.
Yang Fan, Yang Qi, Cheng Peng, et al.Study of cracking extent for gap discharge in insulating material of power cable joint[J]. Transactions of China Electrotechnical Society, 2017, 32(2): 24-32.
[7] 周凯, 吴科, 万利, 等. 无机纳米颗粒抑制中压电缆终端气隙缺陷局部放电的有效性[J]. 电工技术学报, 2016, 31(22): 230-238.
Zhou Kai, Wu Ke, Wan Li, et al.Validity of inorganic nano-particles on the suppression of partial discharge in air gap defects for medium voltage cable terminations[J]. Transactions of China Electro- technical Society, 2016, 31(22): 230-238.
[8] Schaik N V, Czaszejko T.Conditions of discharge- free operation of XLPE insulated power cable systems[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2008, 15(4): 1120-1130.
[9] 陈伟根, 龙震泽, 谢波, 等. 不同气隙尺寸的油纸绝缘气隙放电特征及发展阶段识别[J]. 电工技术学报, 2016, 31(10): 49-58.
Chen Weigen, Long Zhenze, Xie Bo, et al.Characteristics and development stage recognition of air-gap discharge within oil-paper insulation considering effect of cavity size[J]. Transactions of China Electrotechnical Society, 2016, 31(10): 49-58.
[10] 万利, 周凯, 李旭涛, 等. 以电场特征理解电缆终端气隙的局部放电发展机理[J]. 高电压技术, 2014, 40(12): 3709-3716.
Wan Li, Zhou Kai, Li Xutao, et al.Toward understanding development mechanism of partial discharge in air gap defects in cable termination by analysis of electric field characteristics[J]. High Voltage Engineering, 2014, 40(12): 3709-3716.
[11] 潘浩, 殷庆铎, 高文胜. 固体绝缘中气隙尺寸对局部放电过程的影响[J]. 高电压技术, 2008, 34(3): 458-461.
Pan Hao, Yin Qingduo, Gao Wensheng.Influence of void dimensions on partial discharge in solid insulation[J]. High Voltage Engineering, 2008, 34(3): 458-461.
[12] 郑殿春, 丁宁, 沈湘东, 等. 基于分形理论的尖-板电极短空气隙放电现象[J]. 物理学报, 2016, 65(2): 245-251.
Zheng Dianchun, Ding Ning, Shen Xiangdong, et al.Discharge phenomena of short-air-gap in needle-plate electrode based on fractal theory[J]. Acta Physic Sinica, 2016, 65(2): 245-251.
[13] 卓然, 关伟, 陈林聪, 等. 气隙缺陷局部放电下空气分解组分特性研究[J]. 高压电器, 2017, 53(2): 139-146,153.
Zhuo Ran, Guan Wei, Chen Lincong, et al.Study on the characteristics of air decomposition components under PD of air-gap insulation defect[J]. High Voltage Apparatus, 2017, 53(2): 139-146,153.
[14] 季洪鑫, 李成榕, 马国明, 等. 冲击电压下气体绝缘开关设备悬浮缺陷放电特征[J]. 电工技术学报, 2017, 32(6): 256-264.
Ji Hongxin, Li Chengrong, Ma Guoming, et al.Characteristic analysis of gas insulated switchgear suspension defect under impulse voltage[J]. Transactions of China Electrotechnical Society, 2017, 32(6): 256-264.
[15] 金立军, 陈俊佑, 张文豪, 等. 基于图像处理技术的电力设备局部放电紫外成像检测[J]. 电力系统保护与控制, 2013, 41(8): 43-48.
Jin Lijun, Chen Junyou, Zhang Wenhao, et al.Partial discharge detection of power equipment by ultraviolet imaging based on image processing technology[J]. Power System Protection and Control, 2013, 41(8): 43-48.
[16] 周文俊, 刘宇舜, 李鹏飞, 等. 基于特高频法检测电气设备局部放电的改进Vivaldi天线[J]. 电工技术学报, 2017, 32(12): 259-267.
Zhou Wenjun, Liu Yushun, Li Pengfei, et al.Modified vivaldi antenna applied to detect partial discharge in electrical equipment based on ultra-high frequency method[J]. Transactions of China Electro- technical Society, 2017, 32(12): 259-267.
[17] 郑会军, 付乔. 气隙模型局部放电与油中产气量的相关分析[J]. 电力系统及其自动化学报, 2013, 25(5): 31-34, 134.
Zheng Huijun, Fu Qiao.Correlation analysis of air-gap model discharge and gas generation in oil[J]. Proceedings of the CSU-EPSA, 2013, 25(5): 31-34, 134.