某10 kV线路自动化开关误动作原因分析

Reason Analysis of Misoperation of Automatic Switch in a 10 kV Line

某10 kV架空配电线路自动化开关发生误动作,经分析可知该开关误跳闸的原因是控制器电源转换模块烧毁。基于MATLAB仿真软件搭建了该开关控制器电源管理系统模型,进一步分析了电源转换模块烧毁原因。针对发现的问题,提出了控制器出口防误动作以及施工现场防误接线的建议,有效解决了此类型开关在工程实践过程中的误动作问题。

The misoperation of automatic switch in a 10 kV overhead distribution line happened and it is found by analysis that the reason of the switch misoperation is the burnt-out power converter module of the controller. The model of power management system of the switch controller is built based on MATLAB simulation software and the reason of the burnt-out power converter module is further analyzed. Aimed at problems found, suggestions against the misoperation of the controller outlet and the misconnection at construction site are proposed, which effectively solve misoperation problems of such type of switch in the project practice process.