钢渣显热对宝钢供配电架空线路安全运行的危害评价  

Evaluation of Hot Slag Hazard on the Power Supply Aerial Wires at Baosteel

作　　者：袁继烈[1] 杨镇[1] 戴松岩[1] 赵春阳[1] 

机构地区：[1]宝钢股份公司能源部,上海201900

出　　处：《宝钢技术》2005年第2期69-72,共4页Baosteel Technology

摘　　要：重点分析了发生在宝钢厂区一起“奇特”的220 kV高压架空线路闪络故障,并据此讨论了宝钢供配电架空线路的运行状况。通过层层分析,最终找到了引发该闪络故障的三个必要务件:红热钢渣、潮湿气候和钢渣车在高压线路下的驻留;并对在闪络中形成的地面炸坑进行了成因推测。对防止此类故障以及提高宝钢供配电系统可靠性提出了若干建议。A strange' flashover of 220 kV aerial wire happened at Baosteel is analyzed, and the safety status of Baosteel' s power supply aerial wires is discussed. Through detailed analysis, three necessary conditions that caused the flashover are found, including the hot slag conveyed by a truck, the humid atmosphere, and the staying of the truck under the wire. Besides, a hole that appeared at the spot is analyzed and possible reasons are given. Some suggestions are put forward to prevent similar events and to improve the reliability of the Baosteel power supply system.

关 键 词：闪络 高压架空线路 钢渣 爆炸 

分 类 号：TM75[电气工程—电力系统及自动化]