Basler DECS-100-B15 Digital Excitation Control System

The Basler DECS-100-B15 is a compact digital excitation control system designed for small to medium-sized synchronous generators. This controller provides automatic voltage regulation (AVR), protection, and communication capabilities in a cost-effective, space-saving package. The DECS-100-B15 is ideal for diesel and gas gensets, hydro turbines, and industrial generator applications.

The system features a microcontroller-based design with advanced control algorithms, ensuring stable voltage regulation and fast response. It includes a simple front-panel interface with LED indicators and pushbuttons for local monitoring and adjustment. The DECS-100-B15 supports Modbus communication for integration with SCADA systems. Its rugged construction and wide operating temperature range make it suitable for harsh environments.

Technical Specifications

• Model: DECS-100-B15

• Control mode: AVR (automatic voltage regulation)

• Voltage sensing: 3-phase, 0-600 V AC

• Field output: Up to 15 A continuous

• Regulation accuracy: ±0.5% of setpoint

• Protection: Over-excitation, under-excitation, V/Hz, loss of sensing

• Communication: Modbus RTU (RS-485) optional

• LED indicators: Power, excitation ON, fault

• Power supply: 56-277 V AC or 125 V DC

• Operating temperature: -40°C to +70°C

• Dimensions: 150 x 120 x 60 mm

• Certifications: CE, UL, RoHS

Functional Features

• Precise voltage regulation: Maintains generator voltage within ±0.5% of setpoint.

• Protection functions: Over-excitation, under-excitation, V/Hz, loss of sensing.

• Soft start: Controlled voltage build-up during startup.

• Compact design: Small footprint for space-constrained panels.

Typical Applications

• Diesel gensets: Standby and prime power applications.

• Gas gensets: Voltage regulation for natural gas generators.

• Hydro turbines: Excitation control for small hydro plants.

• Industrial generators: Reliable voltage control for plant power.

Installation and Configuration

Mount the DECS-100-B15 on a panel. Connect the voltage sensing, field output, and power supply. Configure the voltage setpoint and protection settings using the front-panel interface or via Modbus communication.

Compliance

Complies with IEEE 421.5, IEC 60034-16, CE and UL approved, RoHS compliant.

Conclusion

The Basler DECS-100-B15 provides reliable, cost-effective excitation control for small to medium generators, offering essential AVR, protection, and communication features in a compact package.