应用于新一代智能变电站的隔离断路器

Application of Disconnecting Circuit Breaker in New Generation Smart Substation

20世纪90年代以来,随着断路器技术的不断进步,断路器设备的可靠性大幅提升,而隔离开关的技术水平却停滞不前。在此情况下,隔离断路器新型设备开始应用于电网。对应用于武汉110 kV未来城变电站(新一代智能变电站)的110 kV隔离断路器进行了研究,通过将隔离断路器与传统断路器、隔离开关进行对比,介绍了隔离断路器的设计理念、功能特点和优点。对隔离断路器的国外应用情况、国内型式试验和制造情况及在线监测装置使用情况进行调研,分析了隔离断路器的技术特点和现阶段的研究及应用情况,研究了隔离断路器的差异化型式试验考核要求。研究结果可为"新一代智能变电站"中隔离断路器这一新型设备的应用和运行维护管理提供借鉴和经验。

Since the 1990s,the reliability of circuit breaker（ CB） device increase greatly along with the continuous progress of CB technology,but the technical level of disconnector（ DS） has stagnated. So,the new disconnecting circuit breaker（ DCB） devices have been applied to the power grid. This paper studied the 110 kV DCB which was applied in Wuhan 110 kV Future City Substation,compared DCB with tradition CB and DS,and introduced the design idea,main characteristics and advantages of DCB. The technical features,application situations,and specific type test requirements of DCB were analyzed,through the research findings of DCB’s foreign application,type test and on-line monitoring status. The research results can provide reference and experience for the application and operation maintenance management of DCB in the new smart substations.