Product Overview

The 3BHE037864R0108 UFC911 B108 is a specialized main control board engineered for the ABB UNITROL 1000 series of Automatic Voltage Regulators (AVR). As the primary intelligence of the excitation system, this board manages the regulation of synchronous machines by processing complex algorithms for voltage and reactive power control. The UFC911 B108 is designed to integrate seamlessly with both legacy and modern power architectures, providing a high degree of flexibility for analog and digital signal processing. Its hardware is optimized to deliver high-speed logic execution, ensuring stable generator operation even during transient grid conditions or sudden load changes.

Essential Hardware Parameters and System Profiles

The UFC911 B108 motherboard is defined by its precision timing and robust electrical design, ensuring it meets the stringent requirements of power generation utility standards.

• Onboard high-speed microprocessor for real-time PID control and voltage regulation.

• Advanced diagnostic layer for constant monitoring of excitation current and bridge temperature.

• Compact PCB layout designed to fit standard UNITROL rack or surface mounts.

• High electromagnetic compatibility (EMC) rating to prevent interference in high-voltage environments.

• User-accessible interface ports for direct connection to PC-based commissioning software.

Primary Industrial Deployments

This control board is a critical asset in power generation plants where precision voltage regulation is vital for grid stability. The UFC911 B108 is predominantly used in small to medium-sized synchronous generators within hydroelectric plants and thermal power facilities. In industrial co-generation units, it manages the complex balance of power factors to optimize energy efficiency and protect the alternator from over-excitation. Furthermore, its ruggedized Swedish construction makes it an ideal choice for emergency backup power systems in data centers and hospitals, where the board ensures that standby generators reach operational voltage levels with maximum speed and reliability.