The Woodward SPM-D2-11 is a specialized synchronizing controller within Woodward's easYgen product line. Its primary function is to automatically synchronize a generator to an active busbar by meticulously matching frequency, voltage, and phase angle before issuing a close command to the circuit breaker. This process prevents damaging mechanical and electrical stresses on the generator and power system. The SPM-D2-11 is typically used in standby, prime power, and parallel generator set applications. It features advanced algorithms for precise control and can communicate via CANbus for integration into broader power management systems. The "SPM" designation often stands for "Synchronizer and Load Manager," indicating its core functionalities.

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