Emergency Ampacities of Direct Buried Three Phase Underground Cable Systems
Emergency Ampacities of Direct Buried Three Phase Underground Cable Systems
复制标题
直埋三相地下电缆系统的应急载流量
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
Sang
中科院分区：
文献类型：
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作者：
W. Black;Sang
建立了确定三相水平布设地下电缆系统紧急暂态载流量的热模型。该模型基于有限差分热传导分析和叠加原理，该原理允许将各个热源的温升相加，最终提供多根电缆系统的温升。热模型被转换成复杂的计算机程序，该程序能够针对导体电流的任何变化计算实时电缆温度。
A thermal model is formulated for the determination of the emergency transient ampacities of a three phase, horizontally spaced underground cable system. The model is based on a finite difference heat transfer analysis and the principle of superposition which permits the summation of the temperature rise of individual heat sources to eventually provide for the temperature rise of a multiple cable system. The thermal model is transformed into a complex computer program that is capable of calculating the real time cable temperature for any change in conductor current.