One of the best ways to correct stray voltage problems in livestock buildings is to stop current flow on the grounding system from both the Primary and Secondary source. First of all for the Primary side, we must install a Dairyland Isolator to stop all Primary Neutral return current from traveling onto the Secondary Neutral to the grounding system. Second, use a 4 wire system that includes a ground return wire along with the feed wires from the transformer to every service panel on the livestock farm. The secondary neutral must be only grounded once at the transformer pole. Bonding of the secondary neutral to the grounding system at the panels is removed and replaced by this ground return wire that connects the grounding system at each panel back to the transformer secondary neutral. We now have a system that stops both Primary and Secondary neutral current from traveling on the grounding system, at the same time providing a safe path for any fault current back to the transformer.
I believe in bonding all metal objects back to the electrical system for our safety but at the same time there should not be any current traveling on the grounding system until fault current occurs.
At some livestock farms I have detected a significant amount of Primary Neutral current traveling on the grounding system(10-20 m amps AC) with both lines to the transformer disconnected at the road ( Primary and Primary Neutral ) This was found to be Primary Neutral current from the local distribution system that was using earth as a return path, this can also cause problems for for livestock operations and very hard to deal with.
It is the current that does the damage not the voltage
Stray Current/Voltage
Re: Stray Current/Voltage
