Basler Electric XR2002F Voltage Regulator

The Basler Electric XR2002F is a high‑performance automatic voltage regulator (AVR) designed for brushless and DC excited synchronous generators. It continuously monitors the generator terminal voltage and adjusts the excitation current to maintain the setpoint voltage under varying load and speed conditions. The XR2002F is widely used in industrial generator sets, marine power plants, and emergency standby systems.

Advanced Control Features

The regulator employs a digital PID (Proportional‑Integral‑Derivative) control algorithm for stable and responsive voltage regulation. It features adjustable gain, stability, and droop settings to accommodate different generator types and load characteristics. An optional reactive power control (Q‑control) mode allows parallel operation with other generators or the utility grid.

User Interface and Programming

Programming is performed via a front‑panel keypad and backlit LCD screen. Parameters such as voltage setpoint, response time, and excitation limit can be easily adjusted. The regulator stores settings in non‑volatile memory and includes a real‑time clock for event logging. A USB port is provided for connection to a PC for advanced configuration and firmware updates.

Technical Specifications

Input voltage: 100–480 VAC, 50/60 Hz (sensing). Power supply: 24–250 VDC or 120–240 VAC. Excitation output: 0–100 VDC, up to 10 A continuous. Regulation accuracy: ±0.5% of setpoint. Operating temperature: –20°C to +60°C. The regulator meets CE and UL standards.

Applications

The XR2002F is suitable for generators ranging from 50 kVA to 5 MVA. It is used in standby power systems, prime power installations, cogeneration plants, and renewable energy systems. The regulator can be integrated with automatic transfer switches and remote monitoring systems via its communication ports.

Installation and Commissioning

Mounting is typically inside the generator control panel. Wiring connections are clearly marked for sensing, excitation field, and auxiliary inputs. Commissioning involves setting the voltage setpoint, adjusting PID parameters, and performing load tests to verify performance. A self‑diagnostic routine simplifies troubleshooting.

Reliability and Protection

The XR2002F is built with high‑quality components and includes comprehensive protection features: over‑excitation limit, under‑excitation limit, loss of sensing protection, and thermal shutdown. These protect both the regulator and the generator from abnormal operating conditions.

Conclusion

The Basler Electric XR2002F voltage regulator offers precise, flexible, and reliable voltage control for synchronous generators. Its advanced features, robust design, and ease of use make it a top choice for power generation applications worldwide.