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接地电阻测试仪工作原理

接地电阻测试仪工作原理. RE = U / IE. 接地电阻测试仪工作原理. 电位差 – 3 和 4 极法实际测量. 设置接地极. 接地电阻测试仪工作原理. 错误. 错误. 错误. 正确. 地极通常设置在地电势影响的中间位置 !. 地电势. false. 土壤导电率测量原理. 从显示的电阻值 R E , 土壤导电率按照下面公式计算 :  E ...... 土壤导电率平均值 (W.m) R E ...... 测量电阻 (W) a ...... 地极距离 (m). r E =2* p *a*R A. 土壤导电率测量.

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接地电阻测试仪工作原理

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  1. 接地电阻测试仪工作原理 RE = U / IE

  2. 接地电阻测试仪工作原理 电位差 – 3和4极法实际测量

  3. 设置接地极 接地电阻测试仪工作原理 错误 错误 错误 正确 地极通常设置在地电势影响的中间位置! 地电势 false

  4. 土壤导电率测量原理 从显示的电阻值 RE, 土壤导电率按照下面公式计算 : E ...... 土壤导电率平均值 (W.m) RE ...... 测量电阻 (W) a ...... 地极距离 (m) rE=2*p*a*RA

  5. 土壤导电率测量 rE=2*p*a*RA

  6. 选择法原理及应用 Advantage: Distinct earth resistances within meshed ground systems can be measured without disconnection. Only clamp current Im is used for calculation of RE. Important: The minimum clamp current is 0.5mA – if not, an error message is displayed. R Display = R E3 !!

  7. 应用:高压输送塔的接地测量 用这种方法可以测量 各种结构 例如:测量有四个支腿 的输电塔一用户应测 量四次,而6个支腿就 要六次,仪依此类推. 四次测量时,不得\变动输电塔上的电流接线 (E) 只需把钳型探头分别 夹到每个支腿上 钳型探头 环形接地系统 电流接线(E)

  8. 济南兴拓检测仪器有限公司地址：济南市历下区解放东路56号金泉大厦a2503室联系人：窦冬梅电话：0531-88558528网址:http://www.xingtuo17.com济南兴拓检测仪器有限公司地址：济南市历下区解放东路56号金泉大厦a2503室联系人：窦冬梅电话：0531-88558528网址:http://www.xingtuo17.com

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