Nov 14, 2008 · Small areas tend to have this problem regardless of how much additional horizontal copper or ground rods we install. Any solutions to getting small substations to meet IEEE80? Worst …

Jan 4, 2017 · A substation ground well could be modeled in a similar way as a ground rod using the diameter of the encased pipe and the equivalent deep soil resistivity. The voltage profile could be …

Oct 12, 2004 · What do you suggest to design for grounding of Supply Well Pumps that are located outside of current safety fence of a station? 1) Use Isolated Transformer? 2) Design a ground math …

Jul 25, 2005 · A good grounding design starts with soil resivity data, gathered from testing done on site. For example; while bedrock usually has a large value of resistivity, there may be a water table or …

Mar 2, 2006 · High cost compare with other grounding system is one of the drawbacks for ground well. Since you mentioned that there is one available, I would use as part of the grounding system. Appear …

Aug 4, 2010 · Conventional grounding systems did not work well in this location since the desert terrain had no water table and very little rainfall. The extremely dry soil conditions would have required …

Apr 7, 2008 · I know that the NEC requires additional Equipment Ground Conductors (ECG's) to be run with any feeders between equipment and Supply Side Bonding Conductors (SSBJ) to be run …

Jun 27, 2007 · For lightning protection, the inductance of the grounding electrode system becomes important. Long lengths of wire or ground rods may not be effective because of inductance at high …

Aug 24, 2007 · Grounding has two functions. 1> Reduce setp and touch potentials. 2> provide a return path for ground fault currents. We have not rock but very dry, high resistance soil. Step and touch …

Oct 12, 2009 · I have a outdoor utility-owned pad-mounted transformer, 480Y/277 4-wire secondary, serving a switchboard in a building via cable in underground conduit. The transformer is located very …