110 kV沙土变同等条件下不同中性点接地设备故障处理对比试验及其分析
|
摘要
2015年10月,国网江西省电力公司赣西供电分公司在同等条件下分别对自动消弧线圈和ZXC系列主动干预型故障相转移接地装置做了单相瞬时性接地故障、单相永久性接地故障处理试验。试验结果表明:自动消弧线圈由于补偿后的残流控制的不好,不能及时熄灭瞬时性接地电弧,对永久性接地故障接地选线的准确率仅为33%;ZXC系列主动干预型故障相转移接地装置能及时消除瞬时性接地故障,选线准确率达100%,能及时选出并切除永久性接地故障。确保了故障点的安全。
In October 2015, State Grid Jiangxi Electric Power Company in Power Supply Company made single-phase instantaneous ground fault on the automatic arc-suppressing coil and ZXC series active interferential fault phase-shift grounding device under the same conditions,the single-phase permanent grounding fault handling test.. Experimental results show that the automatic arc suppression coil due to residual current compensation control is not good, Can not extinguish the instantaneous grounding arc in time, the accurate rate of permanent grounding fault grounding line selection is only 33%; ZXC series of active intervention type fault phase transfer grounding device can eliminate the transient grounding fault the accurate rate of 100%, line selection, timely select and remove permanent grounding fault. to ensure the safety of the fault point.
In October 2015, State Grid Jiangxi Electric Power Company in Power Supply Company made single-phase instantaneous ground fault on the automatic arc-suppressing coil and ZXC series active interferential fault phase-shift grounding device under the same conditions,the single-phase permanent grounding fault handling test.. Experimental results show that the automatic arc suppression coil due to residual current compensation control is not good, Can not extinguish the instantaneous grounding arc in time, the accurate rate of permanent grounding fault grounding line selection is only 33%; ZXC series of active intervention type fault phase transfer grounding device can eliminate the transient grounding fault the accurate rate of 100%, line selection, timely select and remove permanent grounding fault. to ensure the safety of the fault point.
引文
[1]国网江西省电力公司赣西供电分公司.同等条件下单相接地故障处理对比试验、试验报告[R].南昌:国网江西省电力公司赣西供电分公司,2015.
[2]李景禄.实用配电网技术[M].北京:中国水利电力出版社,2002.
[3]李景禄.现代防雷技术[M].北京:中国水利水电出版社,2009.
[4]李景禄.配电网防雷技术[M].北京:中国科学出版社,2014.
[5]李景禄.ZXC系列配电网单相接地故障智能处理装置开发研制[R].长沙:长沙理工大学,2014.
[6]李政洋,李景禄.配电网铁磁谐振与单相接地故障的快速诊断与处理方法:中国,CN2014100947073[P].2014-03-17.
[7]李政洋,李景禄.配电网自适应接地选线与装置:中国,CN2014100947 054[P].2014-03-17.
[8]中国南方电网.中国南方电网配电系统中性点接地及选线装置试验研究报告[R].广州:中国南方电网,2016.
[9]李政洋,李景禄.配电网单相接地故障性质的快速诊断方法与处理装置:中国,CN2014100947092[P].2014-02-25.
[10]李政洋,李景禄.一种配电网单相过度电阻接地故障的动态处理方法:中国,CN2015104414212[P].2015-07-25.
[11]李政洋,李景禄.一种分区式配电网单相过渡电阻接地故障选相法:中国,CN2016032901194810[P].2016-04-01.
[12]黄立新,黄宝富.小电阻接地系统电弧故障试验及其系统级参数优化仿真[J].电瓷避雷器,2012(6):107-110.HUANG Lixin,HUANG Baofu.Experiment and SystemLevel parameters optimization of arc fault in 10 kV LowResistance grounding system[J].Insulators and Surge Arresters,2012(6):107-110.
[13]宋国兵,李广,于叶云,等.索南加乐.基于相电流突变量的配电网单相接地故障区段定位[J].电力系统自动化,2011,35(21):84-90.SONG Guobing,LI Guang,YU Sheyun,et al.Single phase to ground fault location of distribution network based on sudden change of phase current[J].Power System Automation,2011,35(21):84-90.
[14]王艳松,解飞.配电网单相接地故障的仿真分析[J].高电压技术,2008,34(1):123-127.WANG Yansong,XIE Fei.Simulation and analysis of single-phase to ground fault in distribution networks[J].High Voltage Engineering,2008,34(1):123-127.
[15]戴何笠,刘能,王旭,等.变压器中性点并联保护间隙距离确定方法研究[J].电瓷避雷器,2017(3):147-152.DAI Heli,LIU Neng,WANG Xu,et al.Research on the method of determining the gap distance of shunt protection for transformer neutral point[J].Insulators and Surge Arresters,2017(3):147-152.
[2]李景禄.实用配电网技术[M].北京:中国水利电力出版社,2002.
[3]李景禄.现代防雷技术[M].北京:中国水利水电出版社,2009.
[4]李景禄.配电网防雷技术[M].北京:中国科学出版社,2014.
[5]李景禄.ZXC系列配电网单相接地故障智能处理装置开发研制[R].长沙:长沙理工大学,2014.
[6]李政洋,李景禄.配电网铁磁谐振与单相接地故障的快速诊断与处理方法:中国,CN2014100947073[P].2014-03-17.
[7]李政洋,李景禄.配电网自适应接地选线与装置:中国,CN2014100947 054[P].2014-03-17.
[8]中国南方电网.中国南方电网配电系统中性点接地及选线装置试验研究报告[R].广州:中国南方电网,2016.
[9]李政洋,李景禄.配电网单相接地故障性质的快速诊断方法与处理装置:中国,CN2014100947092[P].2014-02-25.
[10]李政洋,李景禄.一种配电网单相过度电阻接地故障的动态处理方法:中国,CN2015104414212[P].2015-07-25.
[11]李政洋,李景禄.一种分区式配电网单相过渡电阻接地故障选相法:中国,CN2016032901194810[P].2016-04-01.
[12]黄立新,黄宝富.小电阻接地系统电弧故障试验及其系统级参数优化仿真[J].电瓷避雷器,2012(6):107-110.HUANG Lixin,HUANG Baofu.Experiment and SystemLevel parameters optimization of arc fault in 10 kV LowResistance grounding system[J].Insulators and Surge Arresters,2012(6):107-110.
[13]宋国兵,李广,于叶云,等.索南加乐.基于相电流突变量的配电网单相接地故障区段定位[J].电力系统自动化,2011,35(21):84-90.SONG Guobing,LI Guang,YU Sheyun,et al.Single phase to ground fault location of distribution network based on sudden change of phase current[J].Power System Automation,2011,35(21):84-90.
[14]王艳松,解飞.配电网单相接地故障的仿真分析[J].高电压技术,2008,34(1):123-127.WANG Yansong,XIE Fei.Simulation and analysis of single-phase to ground fault in distribution networks[J].High Voltage Engineering,2008,34(1):123-127.
[15]戴何笠,刘能,王旭,等.变压器中性点并联保护间隙距离确定方法研究[J].电瓷避雷器,2017(3):147-152.DAI Heli,LIU Neng,WANG Xu,et al.Research on the method of determining the gap distance of shunt protection for transformer neutral point[J].Insulators and Surge Arresters,2017(3):147-152.