Electric Distribution
DEI's initial solid-state product was for electric distribution use where objectionable neutral-to-earth voltage affected farm customers. The Neutral Isolator (now the Variable Threshold Neutral Isolator) allowed primary-to-secondary isolation to address this issue.
Stray Voltage Mitigation on Farms
An interesting offshoot of this application appeared when a utility client wanted only DC isolation from the primary grounding system due to the effects on their cathodic protection system. This "decoupling" of the utility and customer grounds leaves the AC system unaffected and provides only DC isolation, in a fault-rated product.
