振荡波加压次数对电缆缺陷局部放电特性的影响
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摘要
对于交联聚乙烯(cross linked polyethylene,XLPE)电缆的局部放电(以下简称"局放")实验中振荡波加压次数对电缆缺陷局放特性的影响,目前研究较少。为此,制作了一种10 kV XLPE电缆中间接头典型缺陷模型,并对该种缺陷模型按照振荡波电压分别为4.4 kV、8.7 kV、12.2 kV、14.8 kV的顺序逐级加压,且在每个电压等级下加压20次并记录实验数据。根据实验数据分析研究在不同振荡波电压下,加压次数对电缆缺陷的最大局放量、局放脉冲数等特性的影响。研究结果表明:初始加压阶段,由于半导电微小凸起的存在使得最大局放量较小而局放脉冲数较大;振荡波电压值增加后,半导电尖刺末端的局放逐渐成为主导,最大局放量与局放脉冲数随着加压次数的增加而呈现减小的趋势。
In partial discharge(PD)tests on the XLPE cables,the oscillating voltage test can simulate actual operation of the cable and the equipment used is small and light.But there are few studies at home and abroad on influence of oscillating voltage exciting times on PD characteristics of cable defects.Therefore,a kind of typical defect model of 10 kV XLPE cable intermediate joint was made manually and the defect model was excited step by step in the order of 4.4 kV,8.7 kV,12.2 kV and 14.8 kV.According to the test data,the paper analyzes and studies the influence of exciting times on characteristics of cable defects such as the maximum PD amount and the amount of PD pulses under different oscillating voltage level.The research results indicate that in the initial exciting stage,the maximum PD amount is smaller while the amount of PD pulses is larger due to the existence of semi-conductive tiny bumps.After the oscillating voltage has increased,PD is gradually dominated by PD at the end of semi-conductive spine.Moreover,the maximum PD amount and the amount of PD pulses decrease with the increasing of exciting times.
In partial discharge(PD)tests on the XLPE cables,the oscillating voltage test can simulate actual operation of the cable and the equipment used is small and light.But there are few studies at home and abroad on influence of oscillating voltage exciting times on PD characteristics of cable defects.Therefore,a kind of typical defect model of 10 kV XLPE cable intermediate joint was made manually and the defect model was excited step by step in the order of 4.4 kV,8.7 kV,12.2 kV and 14.8 kV.According to the test data,the paper analyzes and studies the influence of exciting times on characteristics of cable defects such as the maximum PD amount and the amount of PD pulses under different oscillating voltage level.The research results indicate that in the initial exciting stage,the maximum PD amount is smaller while the amount of PD pulses is larger due to the existence of semi-conductive tiny bumps.After the oscillating voltage has increased,PD is gradually dominated by PD at the end of semi-conductive spine.Moreover,the maximum PD amount and the amount of PD pulses decrease with the increasing of exciting times.
引文
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[10]鲁宁.高压XLPE电缆击穿的制造因素分析及有效控制[J].电力工程技术,2017,36(4):43-47,58.LU Ning.Manufacture factor analysis and effective control of high voltage XLPE cable breakdown[J].Electric Power Engineering Technology,2017,36(4):43-47,58.
[11]BOGGS S,DENSLEY J.Fundamentals of partial discharge in the context of field cable testing[J].IEEE Electrical Insulation Magazine,2000,16(25):51-56.
[12]周涛,曾祥君.交联聚乙烯电缆局放脉冲高灵敏度检测方法研究[J].高压电器,2013,49(5):26-30.ZHOU Tao,ZENG Xiangjun.Study on high sensitivity detection of partial discharge pulse in XLPE cable[J].High Voltage Apparatus,2013,49(5):26-30.
[13]罗智奕.110 kV、220 kV交联电缆阻尼振荡波检测技术应用[D].广州:华南理工大学,2011.
[14]杨连殿,朱俊栋,孙福,等.振荡波电压在XLPE电力电缆检测中的应用[J].高电压技术,2006,32(2):27-30.YANG Liandian,ZHU Jundong,SUN Fu,et al.Oscillating wave voltage application in XLPE power cable detection[J].High Voltage Technology,2006,32(2):27-30.
[15]罗俊华,马翠姣,邱毓昌,等.35 kV及以下XLPE电力电缆实验方法的研究[J].电网技术,2000,24(12):58-61.LUO Junhua,MA Cuijiao,QIU Yuchang,et al.35 kV and below XLPE power cable test method[J].Power System Technology,2000,24(12):58-61.
[16]杨引虎,罗建勇,韦远涛,等.分布式电缆局放在线监测系统的研制[J].智慧电力,2018,46(3):91-94.YANG Yinhu,LUO Jianyong,WEI Yuantao,et al.Development of distributed on-line PD monitoring system for cables[J].Smart Power,2018,46(3):91-94.
[17]邢德强.XLPE电力电缆检测技术[J].电工技术学报,2006,21(11):7-8.XING Deqiang.Detection technology of XLPE power cables[J].Transactions of China Electrotechnical Society,2006,21(11):7-8.
[18]GULSKI E,SMIT J J,SEITZ P N,et al.PD measurements on-site using oscillating wave test system[C]//Conference Record of the 1998 IEEE International Symposium on Electrical Insulation:Vol 2.Arlington,USA:IEEE,1998:420-423.
[19]GOCKENBACH E,HAUSCHILD W.The selection of the frequency range for high-voltage on-site testing of extruded insulation cable systems[J].IEEE Electrical Insulation Magazine,2000,16(6):11-16.
[20]WESTER F J,GULSKI E and SMIT J J.Detection of partial discharges at different AC voltage stresses in power cables[J].IEEE Electrical Insulation Magazine,2007,23(4):28-43.
[21]周立,周福升,王诗航,等.阻尼振荡波电压下含针尖缺陷交联聚乙烯电缆绝缘的击穿特性研究[J].绝缘材料,2013,46(1):49-52.ZHOU Li,ZHOU Fusheng,WANG Shihang,et al.Study on breakdown characteristics of crosslinked polyethylene cable insulation containing needle defects under damped oscillatory wave voltage[J].Insulation Materials,2013,46(1):49-52.
[22]PETZOLD F,SCHLAPP H,GULSKI E,et al.Advanced solution for on-site diagnosis of distribution power cables[J].IEEE Transactions on Dielectrics and Electrical Insulation,2008,15(6):1584-1589.
[23]余英,薛荣,黄荣辉,等.10 kV电缆振荡波局放测试的理论分析与实验研究[J].高压电器,2014,50(7):88-93,99.YU Ying,XUE Rong,HUANG Ronghui,et al.Theoretical analysis and experimental research on the oscillating wave partial discharge test of 10 kV cable[J].High Voltage Apparatus,2014,50(7):88-93,99.
[24]夏荣,赵健康,欧阳本红,等.阻尼振荡波电压下110 kV交联电缆绝缘性能检测[J].高电压技术,2010,36(7):1753-1760.XIA Rong,ZHAO Jiankang,OUYANG Benhong,et al.110kV cross-linked cable insulation performance testing with damping oscillation voltage[J].High Voltage Technology,2010,36(7):1753-1760.
[25]TAKAHASHI T,OKAMOTO T.Influence of repetitive application of damped AC voltage on insulation performance of water tree aged XLPE cable[C]//Electrical Insulation and Dielectric Phenomena.[S.l.]:IEEE,2009:299-302.
[2]易琳,李志伟,饶章权,等.110 kV XLPE电缆不同成型工艺下绝缘层红外光谱分析[J].广东电力,2017,30(4):131-136.YI Lin,LI Zhiwei,RAO Zhangquan,et al.Infrared spectroscopy analysis on insulating layer of 110 kV XLPE cable with different forming techniques[J].Guangdong Electric Power,2017,30(4):131-136.
[3]余欣,张涛,彭向阳,等.110 kV受损电缆绝缘理化性能测试与热历史分析[J].广东电力,2017,30(12):119-123.YU Xin,ZHANG Tao,PENG Xiangyang,et al.Physical and chemical property test on insulation of 110 kV damaged cable and analysis on its thermal history[J].Guangdong Electric Power,2017,30(12):119-123.
[4]常文治,葛振东,时翔,等.振荡电压下电缆典型缺陷局放的统计特征及定位研究[J].电网技术,2013,37(3):746-752.CHANG Wenzhi,GE Zhendong,SHI Xiang,et al.Statistical characteristic and location of partial discharge caused by typical defects in power cable under damped oscillation[J].Power System Technology,2013,37(3):746-752.
[5]黄涛,黄烜城,魏海增,等.电厂开关柜局放振动信号降噪方法研究[J].电力系统保护与控制,2018,46(19):109-116.HUANG Tao,HUANG Xuancheng,WEI Haizeng,et al.Study on denoise method for partial discharge vibration signal of switch cabinet of power plant[J].Power System Protection and Control,2018,46(19):109-116.
[6]陈志娟.基于振荡波电压法的10 kV XLPE电缆局部缺陷检测研究[D].广州:华南理工大学,2012.
[7]刘刚,陈志娟,陆国俊,等.110 kV交联聚乙烯电缆接头主绝缘含杂质的击穿特性分析[J].高电压技术,2010,36(10):2450-2453.LIU Gang,CHEN Zhijuan,LU Guojun,et al.Breakdown characteristics of main insulation in110 kV XLPE cable joints containing impurities[J].High Voltage Technology,2010,36(10):2450-2453.
[8]孙广慧,庄小亮,牛海清,等.珠三角地区10 kV配电电缆故障统计分析[J].电气应用,2013,32(11):83-85.SUN Guanghui,ZHUANG Xiaoliang,NIU Haiqing,et al.Statistical analysis of 10 kV distribution cable fault in the pearl river delta region[J].Electrical Application,2013,32(11):83-85.
[9]唐炬,李伟,杨浩,等.高压电缆附件局放超高频检测与分析[J].高电压技术,2009,35(7):1571-1577.TANG Ju,LI Wei,YANG Hao,et al.Ultra-high frequency detection and analysis for partial discharge in high-voltage cable accessories[J].High Voltage Engineering,2009,35(7):1571-1577
[10]鲁宁.高压XLPE电缆击穿的制造因素分析及有效控制[J].电力工程技术,2017,36(4):43-47,58.LU Ning.Manufacture factor analysis and effective control of high voltage XLPE cable breakdown[J].Electric Power Engineering Technology,2017,36(4):43-47,58.
[11]BOGGS S,DENSLEY J.Fundamentals of partial discharge in the context of field cable testing[J].IEEE Electrical Insulation Magazine,2000,16(25):51-56.
[12]周涛,曾祥君.交联聚乙烯电缆局放脉冲高灵敏度检测方法研究[J].高压电器,2013,49(5):26-30.ZHOU Tao,ZENG Xiangjun.Study on high sensitivity detection of partial discharge pulse in XLPE cable[J].High Voltage Apparatus,2013,49(5):26-30.
[13]罗智奕.110 kV、220 kV交联电缆阻尼振荡波检测技术应用[D].广州:华南理工大学,2011.
[14]杨连殿,朱俊栋,孙福,等.振荡波电压在XLPE电力电缆检测中的应用[J].高电压技术,2006,32(2):27-30.YANG Liandian,ZHU Jundong,SUN Fu,et al.Oscillating wave voltage application in XLPE power cable detection[J].High Voltage Technology,2006,32(2):27-30.
[15]罗俊华,马翠姣,邱毓昌,等.35 kV及以下XLPE电力电缆实验方法的研究[J].电网技术,2000,24(12):58-61.LUO Junhua,MA Cuijiao,QIU Yuchang,et al.35 kV and below XLPE power cable test method[J].Power System Technology,2000,24(12):58-61.
[16]杨引虎,罗建勇,韦远涛,等.分布式电缆局放在线监测系统的研制[J].智慧电力,2018,46(3):91-94.YANG Yinhu,LUO Jianyong,WEI Yuantao,et al.Development of distributed on-line PD monitoring system for cables[J].Smart Power,2018,46(3):91-94.
[17]邢德强.XLPE电力电缆检测技术[J].电工技术学报,2006,21(11):7-8.XING Deqiang.Detection technology of XLPE power cables[J].Transactions of China Electrotechnical Society,2006,21(11):7-8.
[18]GULSKI E,SMIT J J,SEITZ P N,et al.PD measurements on-site using oscillating wave test system[C]//Conference Record of the 1998 IEEE International Symposium on Electrical Insulation:Vol 2.Arlington,USA:IEEE,1998:420-423.
[19]GOCKENBACH E,HAUSCHILD W.The selection of the frequency range for high-voltage on-site testing of extruded insulation cable systems[J].IEEE Electrical Insulation Magazine,2000,16(6):11-16.
[20]WESTER F J,GULSKI E and SMIT J J.Detection of partial discharges at different AC voltage stresses in power cables[J].IEEE Electrical Insulation Magazine,2007,23(4):28-43.
[21]周立,周福升,王诗航,等.阻尼振荡波电压下含针尖缺陷交联聚乙烯电缆绝缘的击穿特性研究[J].绝缘材料,2013,46(1):49-52.ZHOU Li,ZHOU Fusheng,WANG Shihang,et al.Study on breakdown characteristics of crosslinked polyethylene cable insulation containing needle defects under damped oscillatory wave voltage[J].Insulation Materials,2013,46(1):49-52.
[22]PETZOLD F,SCHLAPP H,GULSKI E,et al.Advanced solution for on-site diagnosis of distribution power cables[J].IEEE Transactions on Dielectrics and Electrical Insulation,2008,15(6):1584-1589.
[23]余英,薛荣,黄荣辉,等.10 kV电缆振荡波局放测试的理论分析与实验研究[J].高压电器,2014,50(7):88-93,99.YU Ying,XUE Rong,HUANG Ronghui,et al.Theoretical analysis and experimental research on the oscillating wave partial discharge test of 10 kV cable[J].High Voltage Apparatus,2014,50(7):88-93,99.
[24]夏荣,赵健康,欧阳本红,等.阻尼振荡波电压下110 kV交联电缆绝缘性能检测[J].高电压技术,2010,36(7):1753-1760.XIA Rong,ZHAO Jiankang,OUYANG Benhong,et al.110kV cross-linked cable insulation performance testing with damping oscillation voltage[J].High Voltage Technology,2010,36(7):1753-1760.
[25]TAKAHASHI T,OKAMOTO T.Influence of repetitive application of damped AC voltage on insulation performance of water tree aged XLPE cable[C]//Electrical Insulation and Dielectric Phenomena.[S.l.]:IEEE,2009:299-302.
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