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This application note explains how the BE1-11i can protect distribution system transformers from overexcitation caused by the addition of distributed energy resources (DERs). It describes a cost-effective protection approach that helps prevent transformer damage when customer-generated power is exported back onto the distribution system.

This compressed file includes an application note, BESTspace™ file, and logic file that demonstrate overexcitation protection with reverse power permissive control using the BE1-11, providing configurable logic examples and implementation resources for generator protection, control coordination, and power system reliability applications.

This application note explains how the DECS-250N uses negative field forcing to improve excitation system response, stability, and voltage regulation in rotating exciter applications. It highlights the performance benefits of positive and negative field forcing during system disturbances and transient events, particularly in generators with slower excitation response characteristics.

This application note describes a retrofit solution for replacing obsolete VR45 voltage regulators with modern DECS-250N digital excitation controllers. It highlights how the upgrade improves reliability, reduces panel space requirements, and adds advanced control features not available in the original system.

This instruction manual provides information for the configuration and use of DGC-2020ES accessories, including installation, setup, and operation of the CEM-2020 Contact Expansion Module.

This instruction manual provides information for the operation and monitoring of the DGC-2020ES Digital Genset Controller, including controls and indicators, operating modes, metering functions, alarm reporting, and troubleshooting procedures.

This instruction manual provides information for configuring the DGC-2020ES Digital Genset Controller, including security and communication settings, input and output configuration, generator and breaker management, protection functions, programmable logic, alarm settings, and troubleshooting procedures.

This instruction manual provides information for the installation and maintenance of the DGC-2020ES Digital Genset Controller, including mounting, wiring, sensing inputs, terminal connections, typical applications, specifications, and troubleshooting procedures.