配电网间歇性电弧接地过电压抑制措施的仿真研究

Simulation Research on the Restraining Measures of the Intermittent Arcing Grounding Ovcrvoltage in the Power Distribution System

通过对配电网间歇性电弧接地过电压发展过程的数值仿真，研究了该过电压抑制措施的限压效果，分析了中性点接地方式对过电压的影响，并对无间隙金属氧化物避雷器的过电压耐受能力进行了考核，指出了正确的使用途径。

In this paper,through a digital simulation of the development process of the intermittent arcing grounding overvoltage in the power distribution system,investigates the restraining measures of this kind of overvoltage,an-alyzing the effects of the neutral grounding manners on the intermittent arcing grounding overvoltage,meanwhile,the endurance capacity for the overvoltage of non-gap metal oxide arrester(addressed MOA below)was examined,the correct way of its application was also given.The research results are of reference value for the study of the neutral grounding manners,the insulation coordination of the power distribution system as well as the application of MOA in this system.