摘要
恰当的电力电缆连续载流量对于确保电缆安全可靠、经济运行相当重要。针对IEC60287推荐确定载流量的参数相对保守,利用广东电网公司电缆载流量研究项目中提出的迭代算法和有关试验得出的试验推荐参数,对220 kV麒麟—天河甲乙线进行了全路径电缆载流量进行核算,得到更为符合实际的电缆载流量数据,即220 kV麒天甲乙线载流量为双回路同时运行时1 071 A和单回运行时1 298 A,这两个数据较核算前的952 A和1 160 A分别提高了119 A和138 A。
For the power cable,a proper continuous ampacity（current-carrying capacity） is very important to its reliable and economical operation.Aiming at the relatively conservative parameters given by IEC 60287,this paper utilizes iterative algorithm and recommended tested parameters posted by a cable ampacity research project in Guangdong Electric Power Company to analyze the cable ampacity of the full lines of 220 kV Qilin-Tianhe Line I II,and acquires the cable ampacity data,namely,1 071 A for the case of the lines being in double circuit operation and 1 298 A in single circuit operation,which are 119 A and 138 A higher respectively than that estimated before and much better in agreement with the reality.
出处
《南方电网技术》
2012年第1期63-65,共3页
Southern Power System Technology
