An effective poor man´s ‘SMART’ distribution volt/var management system

The advanced capabilities of modern LTC transformer and regulator tapchanger controls, distribution capacitor bank controls and communications equipment allows for an unprecedented ability to control the voltage profile from distribution substation to the ultimate customer. The use and coordination of these capabilities can result in immediate CVC programs that can affect the average electric power consumer voltage level. The implementation of proposed SG (SMART GRID) system features will further increase the accuracy and effectiveness of such programs. Recent studies have shown that the single act of reducing the average consumer voltage levels within the acceptable voltage range (114-126 volts) results in significant positive changes on the power system. These system benefits will be shared by the consumer with lower power bills and by the utility in lower losses, reduced fuel costs, increased equipment capability, reduced need for power factor correction equipment, delayed new generation requirements, and more. A loss of revenue for the utility will occur, as it does for any power efficiency or conservation activity.