Basler DECS-150-5NS1V1N1S – Digital Excitation Control System (AVR)

The Basler DECS-150-5NS1V1N1S is a high-performance, microprocessor-based digital excitation control system (AVR) designed for brushless synchronous generators. With its advanced architecture, the DECS-150 series delivers ultra-tight voltage regulation, fully featured reactive power (VAR) and power factor (PF) control, paralleling support, and comprehensive system protection — all in one compact and rugged package.

This “5NS1V1N1S” variant is a factory-configured model optimized for specific sensing, output, and communication options. It’s ideal for applications that demand precision voltage regulation, fast transient response, and robust integration with generator control systems.

Key Specifications

• Digital excitation control with PWM power stage capable of delivering 7 A continuous at 63 V DC (ambient ~70 °C) or up to 10 A continuous at 55 °C, with higher forcible current pulses.

• Regulation modes: AVR (Automatic Voltage Regulation), FCR (Field Current Regulation / Manual), VAR (Reactive Power Regulation), and PF (Power Factor Regulation).

• Sensing options: Accepts machine voltage up to 600 V AC, with single-phase or three-phase sensing; includes CT inputs for generator current feedback.

• Paralleling and load-sharing support through droop compensation and reactive differential (cross-current) compensation for synchronized generator sets.

• Flexible communications: USB front/rear ports for PC configuration, plus Modbus/Ethernet capability in certain variants for network load-sharing and monitoring.

• Rugged design: Operating temperature range –40 °C to +70 °C, storage range –40 °C to +85 °C; built for reliability in harsh industrial environments.