中压空气绝缘开关柜内部电弧故障的研究与防护措施

Research and Protective Measures for Internal Arc Fault of Medium Voltage Air Insulated Switchgear

在电力系统中,开关柜是非常重要的一个组成部分,与整个系统的正常运行有非常密切的联系。在实际的电力系统运行过程中,开关柜发生故障的频率和故障类型呈现出逐渐增多的趋势。中压空气绝缘开关柜中,其开关柜内部系统的电弧结构是发生故障的主要区域。本文着重对电弧结构发生故障的类型和主要原因进行分析,并从解决问题的角度分析减低故障发生频率的具体措施。

In the operation of power system,the switchgear is a very important part of the system operation process,and has a very close relationship with the normal operation of the whole system.However,during the actual operation of the power system,the frequency and type of failure of the switchgear are gradually increasing.In the system type of the medium-voltage air-insulated switchgear discussed in this paper,the arc structure of the internal system of the switchgear is the main area where the failure occurs.Therefore,this paper focuses on the analysis of the types and main causes of the failure of the arc structure,and analyzes the specific measures to reduce the frequency of faults from the perspective of solving the problem.