Blocker Stray Voltage Isolators
Available from Ronk Electrical Industries
Stray voltage or neutral-to-earth (NE) voltages are an ongoing problem in many areas supplied from single-phase multi-grounded services where current levels in the grounding systems raised (NE) voltages above the perception threshold for either animals or humans. Typical locations are dairy farms, feeder and confinement operations, swimming pools, water systems, residences, fountains, etc.
Stray voltages (NE) can come from many sources, both on and off the site. In most cases, the problems are the result of several sources simultaneous combined.
On-site stray voltage can usually be resolved through a program of upgrading and reconnecting the wiring system and its various loads.
Off-site stray voltage, which is of particular interest to the power supplier, can result from primary neutral currents, off-site faults, marginal groundings, etc.
The Ronk BLOCKER is a device designed to reduce the off-site contribution to the stray voltage problem. This simplifies the solution since any remaining problems have to be on-site in nature and can be handled and resolved accordingly.