Automatic Boosters on Distribution Circuits

Development of automatic voltage regulating equipment for installation on 4 kv distribution circuits at points remote from the substation has made possible a reduction in the cost of distribution by loading circuits to their economic carrying capacities unhampered by the limitation of voltage regulation. Investigation indicates 2 rules governing the application of booster regulators, and comparisons on the basis of cost per unit of voltage improvement shows which of the several devices available should be selected to secure the lowest cost. Tests have demonstrated the practicability of this form of regulation, and its field of application is indicated by economic comparisons with other methods of maintaining voltage within the required limits.