摘要
检测配电网对地电容的容性电流对装设及维护消弧线圈、接地故障熄弧、分析消除PT谐振具有重要意义。针对目前配电系统容性电流检测仪有体积大、质量重、工作效率低等缺点,研发了一款便捷式配电网容性电流检测仪。通过PT二次侧注入异频测试信号检测容性电流。试验结果表明:该检测仪具有体积小、质量轻、测试安全、操作简单快捷,且检测性能稳定、数据准确等优点,具有很好的实用推广价值。
It is of great important to measure power distribution electrical wire's capacitive current for installing and maintaining arc suppression coil,quenching arc of ground fault,analyzing how to eliminate PT resonance. Aiming to solve the existing problems of power distribution electrical wire's capacitive current measurement instrument,such as large and heavy to move and with low work efficiency,a kind of portable power distribution system capacitive current measurement instrument was developed.The capacitive current was measured easily and conveniently by inputting a test signal through PT secondary coil in this method.Experimental results show that the measurement instrument has advantages of small,light in weight,safe measurement,convenient,simple and fast operation,the detection performance is stable,and the data is accurate and so on. It has very good practical promotion value.
出处
《仪表技术与传感器》
CSCD
北大核心
2017年第12期30-32,36,共4页
Instrument Technique and Sensor
基金
国家自然科学基金项目(61075068
61104206
61302131)
广西电网公司职工创新项目(K-GX2014-062-51)
广东省科技厅项目(2014A020208118)
湛江市科技攻关项目(2016A02018)
广东海洋大学创新强校工程项目(Q14209)
广东省工程技术研究中心-广东省海洋装备及制造工程技术研究中心项目
关键词
配电网
容性电流检测
PT二次侧
信号注入
异频测试信号
单片机系统
power distribution electrical wire
capacitive current measurement
PT secondary coil
signal input
different frequencytest signal
singlechip system