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1.发明申请A procedure to measure grounding resistances of electrical installations by measuring the loop impedance 有权通过测量回路阻抗来测量电气设备的接地电阻的程序公开(公告)号：US20050200366A1
公开(公告)日：2005-09-15
申请号：US11061043
申请日：2005-02-18
CPC分类号： G01R27/18
摘要： A procedure to measure the grounding resistances of electrical installations by measuring the loop impedance. According to this procedure, using voltage generator transformers, a current is injected into the loop and this current is measured using current measurement transformers. Two transformers are united into a single transformer, used as impedance transformer, and the loop impedance is established by taking several measurements that allow determining and eliminating parameters of the transformer, by analysis of the measurement results.
摘要翻译： 通过测量环路阻抗来测量电气设备的接地电阻的程序。 根据该过程，使用电压发生器变压器，将电流注入到回路中，并且使用电流测量变压器测量该电流。 两个变压器组合成一个变压器，用作阻抗变压器，通过测量结果分析，可以通过几项测量来确定和消除变压器的参数来建立回路阻抗。
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2.发明授权Procedure to measure grounding resistances of electrical installations by measuring the loop impedance 有权通过测量回路阻抗来测量电气设备的接地电阻的程序公开(公告)号：US07102360B2
公开(公告)日：2006-09-05
申请号：US11061043
申请日：2005-02-18
CPC分类号： G01R27/18
摘要： A procedure to measure the grounding resistances of electrical installations by measuring the loop impedance. According to this procedure, using voltage generator transformers, a current is injected into the loop and this current is measured using current measurement transformers. Two transformers are united into a single transformer, used as impedance transformer, and the loop impedance is established by taking several measurements that allow determining and eliminating parameters of the transformer, by analysis of the measurement results.
摘要翻译： 通过测量回路阻抗来测量电气设备的接地电阻的程序。 根据该过程，使用电压发生器变压器，将电流注入到回路中，并且使用电流测量变压器测量该电流。 两个变压器组合成一个变压器，用作阻抗变压器，通过测量结果分析，可以通过几项测量来确定和消除变压器的参数来建立回路阻抗。
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