Basler DECS-100-B15 DECS series AVR automatic voltage regulator

The Basler DECS-100-B15 is a digital automatic voltage regulator (AVR) designed for precise excitation control of alternating current (AC) synchronous generators. As part of the DECS series, it combines advanced microprocessor-based technology with robust hardware to ensure reliable voltage regulation and system stability in various industrial applications.

Key Features

Precision Voltage Regulation

Achieves tight voltage control with an accuracy of ±0.25% using true RMS sensing, ensuring stable power output even under varying load conditions.

Supports multiple control modes:

Automatic Voltage Regulation (AVR)

Field Current Regulation (FCR) (manual mode)

Optional Power Factor (PF) or Reactive Power (VAR) control for parallel operation.

Flexible Power Stage

Integrated Pulse Width Modulation (PWM) power stage with a 7A or 10A capacity, providing high initial response to transient loads.

Adaptable to various excitation systems, including shunt, permanent magnet (PM), or DC-fed configurations.

Comprehensive Protection and Limiting

Includes essential protection features:

Overvoltage/undervoltage protection

Overexcitation limiting (offline and online)

Minimum excitation limiting

Stator current limiting

Thermal protection for critical components.

Advanced Communication and Monitoring

Supports Modbus RTU communication via RS-485 for remote configuration and real-time monitoring.

Front-panel LCD display for local status visualization and parameter adjustment.

Event logging and fault history for diagnostic analysis.

Robust Design

Compact, modular design for easy installation and maintenance.

Operates in harsh environments with a wide temperature range (-20°C to +50°C) and IP54-rated protection against dust and moisture.

Meets industry standards for shock, vibration, and electromagnetic compatibility (EMC).

Technical Specifications

Parameter DECS-100-B15

Input Voltage 100-240V AC (50/60Hz)

Excitation Voltage Range 0-300V DC

Excitation Current Range 0-15A DC

Voltage Regulation Accuracy ±0.25% of rated voltage

Communication Protocols Modbus RTU (RS-485)

Dimensions Compact rack-mountable design (specific dimensions available in datasheet)

Weight Approx. 2.5 kg

Applications

Distributed Generation：Ideal for small to medium-sized generators in remote or off-grid power systems.

Industrial Backup Power：Ensures stable voltage in backup generators for factories, data centers, and healthcare facilities.

Renewable Energy Systems：Supports voltage control in hybrid systems combining diesel generators with solar or wind power.

Marine and Mobile Applications：Rugged design suitable for shipboard generators or mobile power units.

Benefits

Reliability：Proven performance in harsh environments with minimal downtime.

Ease of Use：Auto-tuning functionality reduces commissioning time, while intuitive software (e.g., BESTCOMS Plus) simplifies setup and monitoring.

Scalability：Flexible control modes and communication options enable integration into larger power management systems.

For detailed technical documentation or configuration support, refer to Basler’s official datasheet or contact their customer service team.