摘要
通过介绍某项目工程总变电室试运行时发生的电缆发热及电流不平衡,以及同时发生的变电室控制信号波动较大的现象,分析其故障原因,对同相的2根大截面电缆并联敷设进行计算验算,提出切实可行的解决办法,详细讲解了同相并联的高压大截面电缆的电感值不平衡的原因以及对电气系统正常运行的影响。
This paper describes the heating of the cable and current imbalance occurs when the project transformer room commissioning,And the control signal in transformer room fluctuations a lot. The cause of the malfunction was analyzed,by checking and calculations to the two large cross-section cables laid in parallel which in same phase,a practical solution was proposed. And the reason of inductance imbalanced to the high voltage cables with large cross-section parallel phase was explained.
出处
《施工技术》
CAS
北大核心
2015年第S1期858-860,共3页
Construction Technology
关键词
变电室
电缆
并联
载流量
阻抗
互感
substation room
cables
parallel
load flow
impedance
mutual