城区电力电缆接头故障检测装置准确度试验研究
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摘要
为了保证城区电力电缆的正常工作,在电缆铺设完成后需进行接头故障测试。传统的电缆接头故障检测装置难以准确定位电缆接头故障点,导致检测装置准确度偏低。针对以上问题,提出一种使用脉冲电流法,测量城区电力电缆接头故障检测装置准确度的方法。依据试验需求介绍了基于脉冲电流法测量原理的电缆接头故障检测装置的软、硬件的设计过程。利用所设计的检测装置对城区电力电缆线路的多种故障进行测试,试验结果表明,所设计的电缆接头故障检测装置可以准确判断电缆短路、断路等故障类型,并能够准确定位电缆线路的故障点。
In order to ensure the normal operation of urban power cables, joint failure tests should be carried out after laying cables. The traditional cable joint fault detection device is difficult to locate the cable connector fault location accurately, resulting in low accuracy of the detection device. In view of the above problems, a method of measuring the accuracy of power cable joint fault detection device in urban area by pulse current method is proposed. The design process of the hardware and software of the cable joint fault detection device based on the pulse current method is introduced according to the test requirements. The test results show that the designed cable connector fault detection device can accurately determine the fault types of the cable short circuit, circuit breakage and so on, and can accurately locate the fault point of the cable line.
In order to ensure the normal operation of urban power cables, joint failure tests should be carried out after laying cables. The traditional cable joint fault detection device is difficult to locate the cable connector fault location accurately, resulting in low accuracy of the detection device. In view of the above problems, a method of measuring the accuracy of power cable joint fault detection device in urban area by pulse current method is proposed. The design process of the hardware and software of the cable joint fault detection device based on the pulse current method is introduced according to the test requirements. The test results show that the designed cable connector fault detection device can accurately determine the fault types of the cable short circuit, circuit breakage and so on, and can accurately locate the fault point of the cable line.
引文
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[2] 米彦, 芮少琴, 储贻道,等. 高压电缆分布式局部放电检测试验技术[J]. 高电压技术, 2016, 42(13):578-586.
[3] 郭胜辉, 朱芳来. 基于区间观测器的执行器故障检测[J]. 控制与决策, 2016, 31(6):1118-1122.
[4] 毛骏. 10 kV电缆突发故障检测方法研究[J]. 电网与清洁能源, 2016, 32(7):81-86.
[5] 孙抗, 郭景蝶, 马星河. 高压电缆局部放电小波包-峰度法在线检测与定位[J]. 电子测量与仪器学报, 2017, 31(7):1099-1106.
[6] 廖晓辉, 赵肖健, 梁恒娜. 一种基于Hilbert-Huang变换的电力电缆故障测距方法[J]. 电力系统保护与控制, 2017, 45(3):20-25.
[7] 李海林, 郭崇慧, 杨丽彬. 基于时间序列数据挖掘的故障检测方法[J]. 数据采集与处理, 2016, 31(4):782-790.
[8] 苏鹏程, 王冰洁, 刘丽,等. 基于混沌时域反射的电缆故障测试仪[J]. 中国科技论文, 2016, 11(8):904-908.
[9] 唐立珠, 刘葱柏, 刘雪冬,等. 电力电缆识别技术研究[J]. 电子设计工程, 2017, 25(22):166-169.
[10] 王新, 王建顺. 新旧混合电力电缆故障定位研究与仿真[J]. 电测与仪表, 2016, 53(9):51-56.