1987 - Volume #11, Issue #1, Page #29[ Sample Stories From This Issue | List of All Stories In This Issue | Print this story | Read this issue]
Electronic grounding systemJohn M. Graham, manager of Electronic Grounding Products, St. Louis, Mo., says his company's Electronic Grounding System (EGS) has been on the market since 1983 and is guaranteed to reduce stray voltage to levels inconsequential to the health and performance of dairy cattle and other confined animals. EGS equipment attaches to the neutral bar of the farm electrical service. Ground rods install 300 ft. or more from the dairy barn. Resistance is amplified to draw stray voltage away from the farm's electrical equipment to the earth. The device detects voltage going back to the neutral and routes it to the grid. Some 50 EGS systems have already been installed successfully in Wisconsin. The system costs about $6,000. Some experts say "equipotential plane grounding systems developed at the University of Wisconsin (see accompanying story), can eliminate stray voltage in many cases. However, if the stray voltage problem is outside at a waterer, feeder or silo unloader, equipotential, grounding cannot always help."
Contact: FARM SHOW Followup, John M. Graham, Electronic Grounding Products, Blackburn Division, 1525 Woodson Road, St. Louis, Mo.; 63114. (ph 314 993-9430).
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