【摘要】 提出了测量大型地网接地电阻的一种新方法，既可用料相法消除流入地网的不平衡电流造成的工频干扰，又可消除电流、电压引线间互感电势造成的误差，配合通讯工具可方便实施．更多还原

【Abstract】 A new method of measuring ground resistance for large grounding grid is proposed. Itcan remove the AC interference due to unbalance current by phase reversal method and also theerror caused by the mutual inductance of current connection lead and voltage connection lead. Itis easy to use when combined with communication tool.更多还原