架空导线短时过负荷能力理论及试验研究  

The Theoretical and Experimental Study of Short-Time Overload Capacity of Overhead Conductors

作　　者：党朋[1] 赵文彬[2] 

机构地区：[1]上海电缆研究所,上海200093 [2]华东电网有限公司,上海200120

出　　处：《电线电缆》2015年第3期39-42,46,共5页Wire & Cable

摘　　要：提出一种架空导线短时过负荷计算模型,并通过试验对计算模型进行验证,结果表明理论计算值与实测值相差不多。架空导线负荷的变化和温度的上升存在滞后效应,因此在不超过导线允许温度范围内,可进行架空导线的短时过负荷运行。短时运行的过负荷量和时间可由计算模型给出,由此为架空导线短时过负荷运行控制提供决策依据。The mathematical model of short-time overload about overhead conductors is presented,and this model was proved by test. The results showed that the calculated values and measured values are very similar. There is a lag effect between the load change and the temperature rising of the overhead conductors,the overhead conductors can run at short-time overload in the allowable temperature range. The overload volume and time can be given by the mathematical model and provide a basis for decision in short-time overload operation of the overhead conductors.

关 键 词：架空导线 短时过负荷 载流量 试验研究 

分 类 号：TM244.2[一般工业技术—材料科学与工程]