【摘要】 在现有杆塔接地电阻计算测量方法的基础上 ,研制了一台便携式杆塔冲击接地电阻测量仪 ;它先向接地体注入波头较缓、幅值较低的冲击电流 ,再采集接地体的电压与电流信号 ,经滤波后换算到标准雷电流下求出其电压响应 ,得出冲击接地阻 ;实验室及现场测试结果表明本仪器测量可信度高而且测试方便更多还原

【Abstract】 On the basis of analyzing the existing calculation method of tower impulse grounding resistance, a portable test device for impulse grounding resistance is designed. While injecting the slow front wave and low amplitude current into the grounding network, the test device collects the voltage and current signals of the grounding network. After filtering and converting of the data, voltage response under lightning current and impulse grounding resistance are obtained. The test results both in lab and on-site show that this device is reliable and convenient in operation.更多还原