摘要
分区供电技术是限制电网电容电流的一项重要措施。它将矿井供电系统地面与井下通过隔离变压器分隔开来,达到治理井下电容电流超标的目的,还可相应提高井下供电系统高压、低压漏电保护装置动作的可靠与准确,确保矿井供电安全。文章针对马兰供电系统具体情况,分析研究采用的具体方案,对提高供电安全具有重要意义。
Divisional power supply is an important measure to restrict capacitive current of power grid. It separates the power supply system of mines into ground part and underground part by isolating transformer which could control the capacitive current overloading, improve reliability and accuracy of high voltage and low voltage leakage protector, and ensure the power supply security in mines. The article analyzed the spe- cific design in the power supply system in Malan Mine, which was significant to improve the power supply security.
出处
《山西煤炭》
2013年第7期54-55,63,共3页
Shanxi Coal
关键词
电容电流
接地故障
短路故障
分区供电
隔离变压器
供电质量
capacitive current
ground fault
short-circuit fault
divisional power supply
isolatingtransformer
power supply quality
