核电仪控系统低压断路器级联选择分析

Low-voltage Circuit Breaker in the Instrumentation and Control System Cascading Select

本文描述了低压断路器在核电仪控系统中的应用,介绍了在选型过程中所采用的限流及级联匹配方法,并给出了核电仪控典型配电回路断路器级联选择的计算过程,总结了在核电仪控系统中断路器级联使用中涉及的安全问题,从工程设计角度提高核电仪控配电系统的可靠性。

This paper describes an application of a low-voW, rage circuit breaker in the instrumentation and control system of nuclear power plant. We introduce the limiting current and cascading matching method used in the selection process, as well as the calculation process of the typical circuit breaker cascade. Finally we summarize some issues involved in breaker cascade security, which will improve the reliability of the instrumentation and control system of nuclear power plant from the perspective of engineering design.