Basler DECS-100-B15 Digital Automatic Voltage Regulator – Precision Excitation Control
The Basler DECS-100-B15 is a high-performance digital AVR engineered for synchronous generators of all sizes. Its 32-bit microcontroller ensures voltage regulation accuracy of ±0.25% with transient recovery under 10 ms. The B15 power stage delivers 15 A continuous field current with 30 A forcing for 10 seconds.
Advanced Control Algorithms
The regulator uses a dual-loop control with adaptive gain and integrated power system stabilizer (PSS) to dampen oscillations. Programmable limits include over-excitation (OEL), under-excitation (UEL), and stator current limits.
Communication and Monitoring
Standard Modbus RTU, optional Ethernet and DNP3. Front-panel LCD shows phasors, metering, and event logs. Waveform capture aids fault analysis.
Installation and Configuration
Wide auxiliary supply (24–250 VDC or 100–240 VAC). Configured via keypad or BESTCOMS software with custom logic.
Applications and Compliance
Used in utility plants, cogeneration, and marine systems. Meets IEEE 421.5, IEC 60068, and UL 508.
Maintenance
Solid-state design with self-diagnostics, minimal maintenance required.
Conclusion
The DECS-100-B15 delivers reliable, flexible excitation control for modern generators.




