论文部分内容阅读
矿井积聚着大量的粉尘、部分地区瓦斯浓度和湿度较高、负荷波动较大,这些都逐渐降低着电气设备及电缆的绝缘强度,此外由于输电线路导线发生机械损伤、操作人员的操作失误等,也使单相接地及漏电等故障层出不穷,严重时会引发大面积停电事故而影响到矿井的安全生产。现阶段矿井供电系统在安全性方面的常见问题包括单相接地电容电流过大、网架结构存在薄弱环节、电缆超载等,为此本文笔者将结合多年工作经验,就如何提高矿井供电系统的安全性展开探讨。
In the mine, a large amount of dust accumulates, the gas concentration and humidity in some areas are high, and the load fluctuates greatly. All of these gradually reduce the dielectric strength of electrical equipment and cables. In addition, due to the mechanical damage of the transmission line lead wires and the operator’s operation errors, But also make single-phase grounding and leakage failure emerge in an endless stream, serious will lead to large-scale power outage and affect mine safety production. Common problems in the current mine power supply system security include single-phase capacitor current is too large, the grid structure of the weak links, such as cable overload, this paper will be combined with many years of work experience, on how to improve the safety of mine power supply system Sex to explore.