变电站直流断路器选型配置及级差配合研究

摘要

Introduction was made to the significance of the direct current (DC) circuit breaker as one DC system component. This paper analyzed and compared the difference between electric power project DC system design technical code of new version and that of old one. This paper researched on the requirement of the type selection and stage difference coordination of DC circuit breaker. Taking real project for case and combining with the on-site debugging and data analysis, this paper obtained the type selection and coordination method, which guides?the application of new DC technical code for the designers, and also ensures the design reliability of DC system.%介绍了直流断路器作为直流系统元件的重要性，分析对比了新旧版《电力工程直流系统设计技术规程》的差异，通过研究直流断路器选型配置和级差配合的要求，并以实际工程为案例，结合现场调试和数据分析，得出了直流断路器的选配方法，指导了设计单位对新版直流规程的应用，保证了直流系统的设计可靠性。