Nhờ các Anh Down giúp các bài báo này.
1.Resistance to ground of combined grid-multiple rods electrodes
http://ieeexplore.ieee.org/Xplore/lo...rnumber=517488
2. Grounding grids transient simulation
http://ieeexplore.ieee.org/Xplore/lo...number=1413402
3. Transient Analysis of Grounding Systems
http://ieeexplore.ieee.org/xpl/freea...number=4111945
Cảm ơn các Anh nhiều.