变电站接地网地电位均压特性及优化设计

The Earth Potential Voltage-sharing Characteristics and Optimization Design of the Earth Netwok of the Substation

变电站接地网地电位分布与接地系统的可靠性及工作人员的生命安全息息相关。均匀的地电位分布降低了站内最大接触电位差、跨步电位差、转移电位,保证了站内二次设备、电缆及工作人员的安全。首先研究影响接地网地电位分布的主要因素,然后分析了接地网电位地分布的特性,总结了接地网不等间距布置的规律。

The paper studies the effect of the main factors of earth network earth potential distribution, and then analyzes the earth potential distribution characteristis of the earth network, finally sums up unequal spacing arrangement rules of the earth network.