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Analysis of DC power system retrofit for substation
Author(s): 
Pages: 179-182
Year: Issue:  17
Journal: Relay

Abstract: 为满足国家电网公司<十八项电网重大反事故反措>中对直流电源系统的新要求,针对大规模变电站直流电源系统改造工作中出现的问题进行了分析并提出了指导性的建议.针对直流系统中将交流断路器更换为直流断路器时出现的极性接反问题,通过对直流断路器的构造、灭弧原理进行解读,明确了正确的接线方式;针对直流系统负荷网络由环状供电向辐射状供电转换时出现的问题,提出了三种负荷网络改造方案,并深入分析了三种方案的优劣.针对...
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