Voltage regulator system and method of use

A method for regulating voltage comprising:

• providing a voltage regulator system having a split-coil transformer assembly, wherein the split-coil transformer assembly comprises:
• a first coil winding;
• a second coil winding;
• a first tap changer;
• and
• a second tap changer;
• wherein the first coil winding comprises a first set of taps;
• wherein the second coil winding is electrically coupled in parallel with the first coil winding to split a load current provided by the voltage regulator system to a load, the second coil winding comprising a second set of taps;
• wherein the first tap changer comprises a first contactor element;
• wherein the second tap changer comprises a second contactor element that is mechanically ganged to the first contactor element of the first tap changer;
• and
• sensing a first voltage deviation from a nominal output voltage of the voltage regulator system, and in response to sensing the first voltage deviation concurrently activating the first contactor element to make contact with a first tap in the first set of taps and the second contactor element to make contact with a first tap in the second set of taps.

A voltage regulator system comprising:

• a voltage regulation controller;
• and
• a split-coil transformer assembly, wherein the split-coil transformer assembly comprises:
• a first coil winding;
• a first tap changer;
• a first reversing switch;
• a second coil winding;
• a second tap changer;
• and
• a second reversing switch;
• wherein the first coil winding comprises a first set of taps;
• wherein the first tap changer comprises a first contactor element that is configured to make contact with one of the first set of taps over a first period of time and another of the first set of taps over a second period of time;
• wherein the first reversing switch is connected to the first coil winding and is operative to electrically couple one of a first end or a second end of the first coil winding to an output terminal of the voltage regulator system;
• wherein the second coil winding, which is electrically coupled in parallel with the first coil winding to split a load current provided by the voltage regulator system to a load, comprises a second set of taps;
• wherein the second tap changer comprises a second contactor element that is mechanically ganged to the first contactor element of the first tap changer;
• wherein the second contactor element is configured to make contact with one of the second set of taps over the first period of time and another of the second set of taps over the second period of time;
• wherein the second reversing switch is connected to the second coil winding;
• wherein the second reversing switch is mechanically ganged to the first reversing switch and is operative to electrically couple one of a first end or a second end of the second coil winding to the output terminal of the voltage regulator system when the first reversing switch electrically couples the one of the first end or the second end of the first coil winding to the output terminal of the voltage regulator system.