ABB 3BHE009319R0001 UNS 2881b-P,V1 Unitrol Excitation Module

Technical Overview

The ABB 3BHE009319R0001 (UNS 2881b-P,V1) is a high-performance excitation control module belonging to the Unitrol series. It is specifically engineered to regulate the excitation current of synchronous generators, ensuring a stable and consistent output voltage. 

Detailed Technical Specifications

The module is defined by the following industrial-grade performance parameters:

• Part Number: 3BHE009319R0001

• Type Designation: UNS 2881b-P,V1

• Input Voltage: 24 V to 250 V DC (Universal wide-range input)

• Output Current: 4 A to 20 A

• Measurement Accuracy: High-fidelity precision of ±0.5%

• Dimensions: 15.0" x 6.0" x 3.0" (38.1 cm x 15.2 cm x 7.6 cm)

• Weight: Approximately 1.5 kg

• Control Features: Overload and short-circuit protection; Integrated programmable logic

• Series: ABB Unitrol Series

Core Features and Functional Benefits

• High Precision Regulation: Advanced algorithms ensure the excitation system remains stable even during rapid load changes, protecting sensitive downstream equipment.

• Flexible Power Integration: The exceptionally wide DC input range allows the unit to operate across various substation battery standards (e.g., 48V, 110V, or 220V DC).

• Operational Safety: Built-in protection logic safeguards the generator rotor and the module itself from electrical faults like overloads or short circuits.

• Customizable Control: Programmable logic capabilities allow engineers to define specific operational sequences, such as automated soft-starts or coordinated emergency shut-downs.

• Compact Reliability: The space-saving design facilitates easy installation in both new control cabinets and legacy retrofit projects.