直流系统电缆电线与断路器熔断器热稳定配合  

The Adaptation of Thermal Stability Between Cable Wire in DC System and Circuit-breakers Fuses

作　　者：韩京哲[1] 郭鹏武[1] 

机构地区：[1]北京供电公司变电管理处,100054

出　　处：《电工技术杂志》2003年第11期37-40,共4页Electrotechnical Journal

摘　　要：提出变电站直流系统电缆电线截面选取 ,除了要满足最大工作电流及不超过允许电压降要求之外 ,还要满足故障时的热稳定要求 ,要与直流断路器熔断器配合 ;还通过分析计算及结合工程实际 。The selection of the cable's cross-section in transformer stations of DC system is studied in this paper.The aim of the selection is not only to adapt the max operating electric current and not to exceed permitted pressure but also to match DC circuit-breakers , fuses and requirement of thermal stability when there are some problems on the circuit.This paper also provides some specific plans for matching problems which can be used in most transformer stations by analysis ,calculating and combining with real engineering.

关 键 词：变电站 直流系统 电缆电线 断路器 熔断器 热稳定配合 

分 类 号：TM246[一般工业技术—材料科学与工程]