摘要
作者论述了矿井高压电网扩大后,对单相接地电流增大所采取的对策。针对6kV电网集中补偿方式的缺点,建议采用从接地变压器二次侧接入消弧线圈的分散性补偿方式,并采用零序有功电流选择性漏电保护,不需零序电压互感器。
The paper expounds the counter measure taking against single phase earthed current since the expansion of high tension electric network in mines. The writer suggests to take scattered compensation by connecting an arc eliminating coil into the secondary of the earthed transformer in lieu of centralized compensation in 6kV network which appears to be defective,to use zero sequence active current selective leakage protection, so zero sequence PT is not necessary.
出处
《煤矿机电》
北大核心
1990年第2期9-12,共4页
Colliery Mechanical & Electrical Technology
