摘要
低频叠加法可实现对矿用低压电缆绝缘的在线监测,能够反映各种不对称故障,具有良好的故障选择性。利用电容电流补偿法对低频电流进行处理,可得到电缆的阻性电流,获取电缆绝缘电阻参数,实现对电缆绝缘水平的实时监测。
The method of low-frequency superposition can achieve on-line monitoring insulation of low voltage cable for coal mine.It can report various asymmetric faults and has a good fault selection.Based on the method of capacitive current compensation, low frequency current is processed.Then it can get impedance current and insulation resistance parameters of low voltage cable,achieving real-time monitoring insulation level of cables.
出处
《煤炭技术》
北大核心
2014年第5期176-178,共3页
Coal Technology
基金
国家高技术研究发展计划(863计划)(2012AA06A405)
山西省科技重大专项(20111101024)
关键词
低频叠加
在线监测
电容电流
MATLAB
low-frequency superposition
on-online monitoring
capacitive current
MATLAB
