STL-F-2 Excitation / AVR Board for Brushed Generators (STC AVR) Key benefits Keeps generator output voltage stable and close to the preset value to protect connected equipment and ensure reliable operation. Reduces downtime and troubleshooting by automatically adjusting excitation so voltage stays within target limits. Provides precise, responsive voltage control that improves generator performance under load changes. What it does Automatic Voltage Regulator (AVR): continuously monitors and adjusts the generator excitation to maintain the output voltage at the setpoint. Regulation response: increasing or decreasing the generator control (excitation) voltage causes a corresponding rise or fall in generator output voltage, enabling predictable manual or automatic control. Accurate voltage output: the board’s voltage regulation function delivers a consistent, reliable output suitable for sensitive loads. Compatibility and model Designed for brushed (separately excited) generators using STC AVR systems. Model: STL-F-2 — fits into the generator excitation/regulation system without changing the generator’s electrical design. Integrates with existing excitation circuitry to provide automatic voltage regulation functionality. Performance and reliability Automated adjustment maintains output voltage close to the user-selected value, minimizing voltage drift during startup, load variation, or transient conditions. Improves the stability and reliability of the generator’s electrical output so connected devices run normally and are less likely to be damaged by voltage fluctuation. Typical applications Standby and backup power systems where stable voltage is required to protect critical loads such as servers, medical equipment, or control systems. Industrial generator sets powering production equipment, PLCs, and motors that are sensitive to voltage variation. Service, repair, and retrofit jobs where a reliable AVR module (STL-F-2) is needed to restore or upgrade voltage regulation for brushed generators. Notes for users Ensure compatibility with your generator’s excitation architecture (brushed excitation, STC AVR type) before installation. Adjustment of the generator control/excitation voltage will directly affect the output voltage; perform tuning and testing per your generator’s service procedures. Model and function summary Product: STL-F-2 excitation/AVR board Function: automatic voltage regulation for brushed generators (STC AVR) Core behavior: adjusts excitation to keep output voltage accurate and stable; generator output varies proportionally with control/excitation voltage adjustments.