Basler Electric SR32A2B05B3E Static Voltage Regulator
The Basler Electric SR32A2B05B3E is a high-performance static voltage regulator belonging to the SR32A series. It is designed for synchronous generators requiring higher excitation current capacity. The regulator uses advanced SCR firing control to maintain generator terminal voltage within tight tolerances under all load conditions. The SR32A series is known for its rugged construction, fast dynamic response, and ease of field adjustment, making it a preferred choice for utility, industrial, and marine generator applications.
Key Features
SCR power stage with continuous output up to 10 A and peak forcing up to 32 A
Regulation accuracy of ±0.5 percent
Built-in voltage and frequency sensing with wide input range
Adjustable gain, stability, and droop compensation
Volts per hertz limiting and underfrequency protection
Overexcitation and overvoltage protection
Soft start and field flashing functions
LED fault indicators and test points
Technical Specifications
The regulator operates from a 120 or 240 VAC auxiliary supply, 50/60 Hz. Sensing input range is 80 to 300 VAC. The field output provides continuous 10 A and peak 32 A for forcing. Transient response time is less than 30 milliseconds. Operating temperature is -30 to +65 degrees Celsius. The enclosure meets IP20 standards. The unit is lightweight and suitable for both new and retrofit installations.
Protection and Control
The SR32A2B05B3E includes comprehensive protection features: overexcitation limiting prevents rotor overheating, underfrequency compensation adjusts voltage setpoint to prevent transformer saturation, and loss-of-sensing detection trips the regulator to avoid overvoltage. The regulator also supports parallel droop compensation for reactive load sharing among multiple generators. A manual trim input allows external control via a potentiometer or automation system.
Installation and Calibration
Mount the regulator inside a control panel with adequate ventilation. Connect power, sensing, field, and auxiliary control wiring. Calibration involves setting the voltage reference, adjusting stability to match generator dynamics, and configuring droop settings for parallel operation. The unit has intuitive potentiometers and DIP switches for field adjustment.
Applications
Widely used in diesel and gas generator sets, hydroelectric plants, marine propulsion generators, and backup power systems. Its high output capability makes it suitable for larger generators requiring substantial excitation power.
Compliance and Durability
Manufactured under ISO 9001, the regulator meets CE, UL, and CSA standards. It has passed rigorous environmental and electromagnetic compatibility tests, ensuring reliable operation in harsh industrial environments.
Conclusion
Basler Electric SR32A2B05B3E static voltage regulator delivers superior excitation control with high current capacity and robust protection. Its reliability and flexibility make it an excellent choice for demanding generator applications.
