Generator parallel operation

Generator parallel operation runs two or more synchronous generators on the same busbar to share load and allow seamless transfer between sets. Before closing the breaker the incoming set must match bus voltage, frequency, and phase sequence, with phase angle near zero, checked on a synchroscope or by an auto-synchronizer. Once paralleled, active load is shared by trimming each governor’s speed setting (frequency droop) and reactive load by trimming excitation (voltage droop). The power management system automates synchronizing, load sharing, and start/stop so capacity tracks demand without overloading or reverse-power tripping a set.