环氧树脂浇注类绝缘管型母线易发缺陷分析及检测手段
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摘要
绝缘管型母线由于具有机械强度高、载流量大及绝缘性能好等突出优势,目前广泛应用于电力、石化等行业。由于缺乏相关管的控制度和标准,导致产品运行稳定性不高,故障频发。绝大多数故障是由于生产和现场安装工艺不到位造成的,且通过常规试验项目无法有效检测出故障,因此本文以绝缘管型母线的生产、现场安装及现场试验检测为切入点,通过对生产和现场安装各环节进行深入分析,找出其中可能出现的隐患,针对这些隐患制定相应的现场考核试验办法,并通过试验结果来支撑本文提出的试验方法,提高绝缘管型母线运行可靠性。
Owing to high mechanical strength, large current-carrying capacity and good insulating performance, currently, insulated tubular bus-bar has been widely applied to the fields of electric power and petrochemical engineering. However, lacking of correlative standard and management, it has poor operation stability, frequent failures and adverse effects. Most of these failures are caused by inadequate manufacturing and field installation processes, which cannot be effectively detected by routine testing measure. Therefore, regarding the insulated tubular bus-bar, this paper carries out a depth analysis for all segments of the manufacture to find out the possible faults during the manufacture and installation. Then the field test assessment and methods for these hidden faults are developed. At last, the experiments verify the proposed methods, which improves the operation reliability of the insulated tubular bus-bar.
Owing to high mechanical strength, large current-carrying capacity and good insulating performance, currently, insulated tubular bus-bar has been widely applied to the fields of electric power and petrochemical engineering. However, lacking of correlative standard and management, it has poor operation stability, frequent failures and adverse effects. Most of these failures are caused by inadequate manufacturing and field installation processes, which cannot be effectively detected by routine testing measure. Therefore, regarding the insulated tubular bus-bar, this paper carries out a depth analysis for all segments of the manufacture to find out the possible faults during the manufacture and installation. Then the field test assessment and methods for these hidden faults are developed. At last, the experiments verify the proposed methods, which improves the operation reliability of the insulated tubular bus-bar.
引文
[1]张北宁.管形绝缘母线和矩形铜排母线性能比较及应用[J].水电与新能源,2010(6):60-64.Zhang Beining.Comparison of characteristics of insulated tubular copper busbar and rectangular copper busbar and their application[J].Hydropower and New Energy,2010(6):60-64.
[2]黎斌,于欣,仝志红,等.对中国有机绝缘管形母线的回顾与展望[J].高压电器,2016,52(6):9-17.Li Bin,Yu Xin,Tong Zhihong,et al.Review and prospect of the organic insulated bus in China[J].High Voltage Apparatus,2016,52(6):9-17.
[3]陈贤熙,李国伟.一起变压器变低全绝缘管型母线绝缘缺陷综合分析[J].中国电业:技术版,2014(11):25-28.Chen Xianxi,Li Guowei.Synthetical analysis of a transformer low voltage side insulated tubular busbar fault[J].China Electric Power:Technology Edition,2014(11):25-28
[4]宋邦申.绝缘管型母线的性能优势及存在问题分析[J].电工电气,2015(1):60-61.Song Bangshen.Performance advantages and existing problems of insulated tubular busbar[J].Electrical and Electric,2015(1):60-61.
[5]张东,周利兵.全绝缘母线外绝缘击穿问题分析及改造措施[J].电力科学与工程,2014,30(11):37-40.Zhang Dong,Zhou Libing.Analysis and improvement measures for breakdown problem of outer insulation of full insulated tubular bus[J].Electric Power Science and Engineering,2014,30(11):37-40.
[6]张星海,刘凤莲,邓元实,等.35kV绝缘管型母线运行异常分析及结构探讨[J].高压电器,2016(1):190-197,203.Zhang Xinghai,Liu Fenglian,Deng Yuanshi,et al.Analysis on abnormal operation and structure of a35kV insulating tubular bus bar[J].High Voltage Apparatus,2016(1):190-197,203.
[7]王永文.电网运行中低压电器设备故障原因分析及对策[J].现代制造技术与装备,2013(4):61-62.Wang Yongwen.Analysis and countermeasures of power grid operation of low-voltage electrical equipment failures[J].Modern Manufacturing Technology and Equipment,2013(4):61-62.
[8]赵凯,党智敏.四针状氧化锌晶须/聚四氟乙烯复合材料的电气性能研究[J].绝缘材料,2011,44(3):49-52.Zhao Kai,Dang Zhimin.Electrical properties of T-ZnO_w/PTFE composites[J].Insulating Materials,2011,44(3):49-52.
[9]刘熊,林海丹,梁义明,等.空气中微秒脉冲沿面放电对环氧树脂表面特性影响研究[J].电工技术学报,2015,30(13):158-165.Liu Xiong,Lin Haidan,Liang Yiming,et al.Effect of atmospheric-pressure microsecond pulsed discharges on epoxy resin surface[J]Transactions of China Electrotechnical Society,2015,30(13):158-165.
[10]申巍,曹雯,吴锴.环氧/纸复合材料击穿特性及空间电荷的研究[J].电工技术学报,2013,28(1):1-6.Shen Wei,Cao Wen,Wu Kai.Study of characteristics of breakdown strength and space charge in epoxy/paper composite[J].Transactions of China Electrotechnical Society,2013,28(1):1-6.
[11]刘子玉.电气绝缘结构设计原理(上册,电力电缆)[M].北京:机械工业出版社,1981.
[12]杨帆,张耀东,周启义,等.一起绝缘管型母线故障的综合缺陷分析及防范措施[J].湖北电力,2015,39(8):42-44,49.Yang Fan,Zhang Yaodong,Zhou Qiyi,et al.Comprehensive defect analysis and preventive measures for an insulated busbar fault[J].Hubei Electric Power2015,39(8):42-44,49.
[13]张亮,李军浩,谭家勇,等.绝缘铜管母线接头处沿面局部放电特性研究[J].高压电器,2013,9(11):94-98.Zhang Liang,Li Junhao,Tan Jiayong,et al Characteristics of surface partial discharge on joint of insulated copper busbar[J].High Voltage Apparatus2013,9(11):94-98.
[14]谢庆,付可欣,陆路,等.环氧树脂真空沿面闪络后表面形貌的AFM分析及分形特征提取[J].电工技术学报,2017,32(16):245-255.Xie Qing,Fu Kexin,Lu Lu,et al.AFM analysis and fractal characteristics extraction of the surface morphology of epoxy resin after vacuum flashover[J].Transactions of China Electrotechnical Society,2017,32(16):245-255.
[15]王旗,李喆,尹毅,等.微/纳米氧化铝/环氧树脂复合材料抑制电树枝生长能力的研究[J].电工技术学报,2015,30(6):255-260.Wang Qi,Li Zhe,Yin Yi,et al.The effect of micro and nano alumina on the ability of impedance on the electrical tree of epoxy resin[J].Transactions of China Electrotechnical Society,2015,30(6):255-260.
[16]季洪鑫,李成榕,庞志开,等.电压波形对GIS自由金属颗粒放电特性的影响[J].电工技术学报,2016,31(13):218-226.Ji Hongxin,Li Chengrong,Pang Zhikai,et al.Influence of voltage waveforms on partial discharge characteristics of GIS mobilized metal particles[J]Transactions of China Electrotechnical Society,2016,31(13):218-226.
[17]王有元,杨涛,田苗,等.电场对绝缘纸中水分扩散特性的影响[J].电工技术学报,2015,30(1):195-203.Wang Youyuan,Yang Tao,Tian Miao,et al.Impact of electric field on the moisture diffusion properties of insulation paper[J].Transactions of China Electrotechnical Society,2015,30(1):195-203.
[2]黎斌,于欣,仝志红,等.对中国有机绝缘管形母线的回顾与展望[J].高压电器,2016,52(6):9-17.Li Bin,Yu Xin,Tong Zhihong,et al.Review and prospect of the organic insulated bus in China[J].High Voltage Apparatus,2016,52(6):9-17.
[3]陈贤熙,李国伟.一起变压器变低全绝缘管型母线绝缘缺陷综合分析[J].中国电业:技术版,2014(11):25-28.Chen Xianxi,Li Guowei.Synthetical analysis of a transformer low voltage side insulated tubular busbar fault[J].China Electric Power:Technology Edition,2014(11):25-28
[4]宋邦申.绝缘管型母线的性能优势及存在问题分析[J].电工电气,2015(1):60-61.Song Bangshen.Performance advantages and existing problems of insulated tubular busbar[J].Electrical and Electric,2015(1):60-61.
[5]张东,周利兵.全绝缘母线外绝缘击穿问题分析及改造措施[J].电力科学与工程,2014,30(11):37-40.Zhang Dong,Zhou Libing.Analysis and improvement measures for breakdown problem of outer insulation of full insulated tubular bus[J].Electric Power Science and Engineering,2014,30(11):37-40.
[6]张星海,刘凤莲,邓元实,等.35kV绝缘管型母线运行异常分析及结构探讨[J].高压电器,2016(1):190-197,203.Zhang Xinghai,Liu Fenglian,Deng Yuanshi,et al.Analysis on abnormal operation and structure of a35kV insulating tubular bus bar[J].High Voltage Apparatus,2016(1):190-197,203.
[7]王永文.电网运行中低压电器设备故障原因分析及对策[J].现代制造技术与装备,2013(4):61-62.Wang Yongwen.Analysis and countermeasures of power grid operation of low-voltage electrical equipment failures[J].Modern Manufacturing Technology and Equipment,2013(4):61-62.
[8]赵凯,党智敏.四针状氧化锌晶须/聚四氟乙烯复合材料的电气性能研究[J].绝缘材料,2011,44(3):49-52.Zhao Kai,Dang Zhimin.Electrical properties of T-ZnO_w/PTFE composites[J].Insulating Materials,2011,44(3):49-52.
[9]刘熊,林海丹,梁义明,等.空气中微秒脉冲沿面放电对环氧树脂表面特性影响研究[J].电工技术学报,2015,30(13):158-165.Liu Xiong,Lin Haidan,Liang Yiming,et al.Effect of atmospheric-pressure microsecond pulsed discharges on epoxy resin surface[J]Transactions of China Electrotechnical Society,2015,30(13):158-165.
[10]申巍,曹雯,吴锴.环氧/纸复合材料击穿特性及空间电荷的研究[J].电工技术学报,2013,28(1):1-6.Shen Wei,Cao Wen,Wu Kai.Study of characteristics of breakdown strength and space charge in epoxy/paper composite[J].Transactions of China Electrotechnical Society,2013,28(1):1-6.
[11]刘子玉.电气绝缘结构设计原理(上册,电力电缆)[M].北京:机械工业出版社,1981.
[12]杨帆,张耀东,周启义,等.一起绝缘管型母线故障的综合缺陷分析及防范措施[J].湖北电力,2015,39(8):42-44,49.Yang Fan,Zhang Yaodong,Zhou Qiyi,et al.Comprehensive defect analysis and preventive measures for an insulated busbar fault[J].Hubei Electric Power2015,39(8):42-44,49.
[13]张亮,李军浩,谭家勇,等.绝缘铜管母线接头处沿面局部放电特性研究[J].高压电器,2013,9(11):94-98.Zhang Liang,Li Junhao,Tan Jiayong,et al Characteristics of surface partial discharge on joint of insulated copper busbar[J].High Voltage Apparatus2013,9(11):94-98.
[14]谢庆,付可欣,陆路,等.环氧树脂真空沿面闪络后表面形貌的AFM分析及分形特征提取[J].电工技术学报,2017,32(16):245-255.Xie Qing,Fu Kexin,Lu Lu,et al.AFM analysis and fractal characteristics extraction of the surface morphology of epoxy resin after vacuum flashover[J].Transactions of China Electrotechnical Society,2017,32(16):245-255.
[15]王旗,李喆,尹毅,等.微/纳米氧化铝/环氧树脂复合材料抑制电树枝生长能力的研究[J].电工技术学报,2015,30(6):255-260.Wang Qi,Li Zhe,Yin Yi,et al.The effect of micro and nano alumina on the ability of impedance on the electrical tree of epoxy resin[J].Transactions of China Electrotechnical Society,2015,30(6):255-260.
[16]季洪鑫,李成榕,庞志开,等.电压波形对GIS自由金属颗粒放电特性的影响[J].电工技术学报,2016,31(13):218-226.Ji Hongxin,Li Chengrong,Pang Zhikai,et al.Influence of voltage waveforms on partial discharge characteristics of GIS mobilized metal particles[J]Transactions of China Electrotechnical Society,2016,31(13):218-226.
[17]王有元,杨涛,田苗,等.电场对绝缘纸中水分扩散特性的影响[J].电工技术学报,2015,30(1):195-203.Wang Youyuan,Yang Tao,Tian Miao,et al.Impact of electric field on the moisture diffusion properties of insulation paper[J].Transactions of China Electrotechnical Society,2015,30(1):195-203.