摘要
在中性点不接地系统中,随着电容电流的不断增加,容易产生弧光接地过电压和相间故障,给供电设备造成极大的危害。分析了一起接地刀闸损坏的原因,建立了系统的数学模型。通过理论分析计算得出故障的初步原因,在Matlab/Simulirnk上的仿真结果验证了理论分析的正确性。最后,给出了抑制措施。
Along with the increase of capacitive current in isolated neutral system,arc grounding over-vohage and phase to phase fault easily occurs in power system which could be quite damaging to power devices. This paper analyzes the cause of grounding switch damage, establishes a mathematical model, and proposes the suppressing measures. The correctness of eonclusions from the theoretical analysis is verified by Matlab/Simulink.
出处
《陕西电力》
2012年第8期62-65,共4页
Shanxi Electric Power
基金
教育部博士科学基金资助(20090613008)
关键词
弧光过电压
中性点
消弧线圈
arc grounding over-voltage
neutral point
arc suppression coil
