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New Method to Calculate Ampacity and the Steady-state Temperature Field of Direct Buried Cable System
Pages: 2833-2837
Year: Issue:  11
Journal: High Voltage Engineering

Keyword:  地下电缆等值热路法有限容积法场路结合载流量温度场;
Abstract: 在人口稠密的城市,电能通常通过直埋电力电缆来传输.为确保电缆能够安全和经济的运行,采用精确的方法预计地下电缆的载流量和温度场是很有意义的.因而提出场路结合的新方法,在电缆区域采用等值热路法,而在土壤区域采用有限容积法,并将两者有效地结合起来.该新方法具有比等值热路法计算准确,比坐标组合法计算快速的优点.通过与均匀土壤中的等值热路法和不均匀土壤中的坐标组合法计算结果比较.证明该新方法可以满足实际需要...
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