Basler SR8A-2B15B3A Static Voltage Regulator

The Basler SR8A-2B15B3A (also designated SR8A2B15B3A) is a solid‑state static voltage regulator designed for medium‑sized brushless synchronous generators. This regulator provides precise automatic voltage regulation (AVR) for generator sets in industrial, marine, and commercial applications, ensuring stable output voltage under varying load conditions.

The regulator features robust construction with advanced protection functions including over‑excitation limiting, V/Hz protection, and loss‑of‑sensing detection. It includes potentiometers for voltage setpoint, stability, and droop adjustment, as well as LED indicators for status monitoring. The SR8A‑2B15B3A is designed for panel mounting with screw terminals for easy connection.

Technical Specifications

• Model: SR8A-2B15B3A

• Control mode: AVR (automatic voltage regulation)

• Voltage sensing: 120/240 V AC (single‑phase or 3‑phase)

• Field output: Up to 10 A continuous

• Regulation accuracy: ±0.5% of setpoint

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

• Adjustments: Voltage, stability, droop

• Power supply: Self‑excited from generator sensing

• LED indicators: Power, excitation, fault

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

• Certifications: CE, UL, RoHS

Functional Features

• High accuracy: Maintains voltage within ±0.5% of setpoint.

• Droop adjustment: Enables reactive power sharing for parallel operation.

• Fast transient response: Quickly corrects voltage deviations.

• Built‑in protection: Over‑excitation and V/Hz limiters protect generator.

Typical Applications

• Medium diesel and gas gensets: Standby and prime power.

• Marine generators: Shipboard power systems.

• Industrial cogeneration: Voltage control for plant power.

Installation and Configuration

Mount the regulator on a panel. Connect the voltage sensing, excitation output, and power supply. Adjust the voltage, stability, and droop controls for optimal regulation.

Compliance

Complies with EMC standards, IEEE 421.5, CE and UL approved, RoHS compliant.

Conclusion

The Basler SR8A-2B15B3A provides reliable, high‑performance voltage regulation for medium‑sized generators.