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Grounding resistance measurement using fall-of-potential method with potential probe located in opposite direction to the current probe

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4 Author(s)
Cheng-gang Wang ; Dept. of Electr. & Comput. Eng., Kanazawa Univ., Japan ; Takasima, T. ; Sakuta, Tadahiro ; Tsubota, Y.

This paper presents errors in grounding resistance measurement using the fall-of-potential method with the potential probe located in the opposite direction to the current probe. Errors are obtained with computer simulation. Such ground electrodes as a counterpoise, a grid, a rod and a combination of them are considered here. The soil is supposed to be extended to two-layer structure. Numerical results are computed by the current source simulation method and the method of images

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Power Delivery, IEEE Transactions on  (Volume:13 ,  Issue: 4 )