摘要
介绍一种多用途钳形测量仪表,采用霍尔元件测量电流、电压、有功和无功功率,同时利用小电流系统的特点,采用LTC1068作为信号调理电路对零序电流进行测量,根据零序功率方向原理实现接地短路故障位置的测量。
A kind of clamp-type multi-meter based on Hall multiplication principle is introduced. It can realize the measurement of current, voltage, active power and reactive power. LTC1068 is applied in the signal processing circuit to measure the zero sequence current according to characters of the small current grounding system, at the same time,detect the phase-to-ground breakdown position by measuring zero sequence power direction.
出处
《煤炭技术》
CAS
北大核心
2015年第12期205-207,共3页
Coal Technology
基金
黑龙江省教育厅科学技术研究项目(12541712)
关键词
霍尔乘法器
小电流接地
信号调理电路
Hall multiplication
small current grounding
signal processing circuit
