Patent ID: 7271572

Claim:
An apparatus for providing a voltage adjustment for single-phase voltage regulator operation of a voltage regulator operatively coupled to a single-phase distribution line of a three-phase power system, the voltage regulator including a plurality of taps selectable to adjust a voltage at a load of the single-phase distribution line to an in-band area, the apparatus comprising: a means for deriving a digitized voltage signal and a digitized current signal of the single-phase distribution line at the voltage regulator; and a microcontroller operatively coupled to the means for deriving, the microcontroller including a microprocessor and a memory operatively coupled to the microprocessor, the microcontroller being programmed to: determine a measured voltage and a measured current at the voltage regulator based on respective digitized voltage and current signals, determine a line voltage drop between the voltage regulator and the load if the measured voltage is in an out-of-band area above the in-band area, and if there are no available taps of the plurality of taps and the measured voltage is in the out-of-band area above the in-band area, utilize the measured voltage to adjust the voltage at the load.