SGC-250N, Synchronous Generator Controller

The SGC-250N Synchronous Generator Controller is a prepackaged solution for applications requiring a single or dual DECS-250N Digital Excitation Control System. The system is preconfigured to adapt to a wide variety of installations including existing or new cubicles. With the DECS-250N’s enhanced capabilities and negative forcing, precise generator voltage control can be obtained. The SGC-250N is designed, built, and completely tested in one location to optimize performance. An optional integrated BE1-11g Generator Protection system is available, offering further generator current differential protection, monitoring, and metering with multiple protection schemes to assist with generator protection.


  • Negative forcing. Provides exceptional response to system transients and load disturbances.
  • The SGC-250N is programmed using BESTCOMSPlus®. BESTCOMSPlus® provides easy and intuitive logic diagrams to add flexibility to help create custom logic schemes designed to meet specific requirements.
  • An automatic tuning feature is integrated to provide excellent system performance while creating fast and easy generator commissioning. This can greatly reduce the time needed to commission the system.
  • Real time monitoring and event recording provide efficient response to any event that may happen in the system.
  • Prewired for easy installation.
  • Dual control power allows for redundancy to prevent an inadvertent shutdown.
  • CT shorting terminals for added arc flash safety.
  • Our system approach minimizes the need for system-level design time.
  • The Offline Simulator, provided in BESTlogic™Plus, helps identify and troubleshoot the logic without the physical hardware.



Case Studies