接地网不等电位数值计算方法

Calculation Method of Grounding Grid with Unequal Potential Model

介绍了导体的自阻与互阻的计算方法,分析了接地网不等电位的数学模型。通过节点电压法,得到按照指数函数规律布置接地导体可以降低接地网接触电压的结论。结果表明:采用不等间距布置方法可以使得电位分布更加均匀,确保人身安全与系统可靠的运行。

Introduction was made to the calculation method of self-resistance and mutual resistance. This paper analyzed the mathematical model of the grounding grid with unequal potential. The node voltage method was used to conclude that the arranged grounding conductor could reduce the contact voltage of the grounding grid according to the exponential function rule. The results show that the unequal spacing method can make the potential distribution more uniform and ensure the personal safety and the reliable operation of the system.