摘要
为了掌握配电网电缆运行状况,有效评估电缆线路的载流量,依据等值热路法理论建立三芯电缆稳态及暂态的等值热路模型,基于IEC 60287计算模型参数,分别计算10 k V三芯电缆在空气敷设和土壤敷设下的导体温度。建立实验仿真平台,对等值热路法计算值和实验结果进行比对及误差分析,验证了等值热路模型的准确性。
In order to learn operation condition of distribution cables and evaluate cable ampacity,equivalent thermal circuit models in stable and transient states of three-core cables are established in accordance with equivalent thermal circuit theory. Based on parameters of IEC 60287 calculation model,the paper respectively calculates conductor temperatures of 10 kV three-core cables laid in the air and under the ground.An experimental simulation platform is built to compare calculation result of equivalent thermal circuit and experimental result;in addition,the errors are analyzed to validate correctness of e-quivalent thermal circuit model.
出处
《广东电力》
2015年第11期110-115,共6页
Guangdong Electric Power
关键词
10
kV三芯电缆
导体温度
等值热路模型
参数计算
10 kV three-core cable
conductor temperature
equivalent thermal circuit model
parameter calculation
