ABB HIER460302R0001 / UN0824B-P UNITROL Processor Module

Description

The ABB UN0824B-P Processor Module, designated by ordering code HIER460302R0001 (also referenced as HIER460302R1), is a core control and processing unit engineered specifically for ABB UNITROL excitation systems. Serving as the computational heart of the excitation controller, this module executes real-time control algorithms, manages regulating loops, and processes high-speed measurements to maintain synchronous generator stability and excitation regulation.

Designed for integration within rack-based UNITROL architectures, the UN0824B-P handles critical tasks including automatic voltage regulation (AVR), field current regulation, and system monitoring. It communicates directly with local I/O channels, thyristor trigger units, and supervisory control networks via onboard communication interfaces, ensuring precise synchronization and rapid response to grid disturbances.

Features

• Dedicated processor architecture optimized for real-time excitation control loops and algorithmic execution
• Direct integration within ABB UNITROL excitation system chassis and control racks
• High-speed internal data handling for precise generator voltage and reactive power regulation
• Onboard communication ports for interfacing with local control panels, engineering tools, and plant networks
• Robust hardware design engineered to withstand electrical noise and thermal variations inherent in power generation environments

Applications

• Synchronous generator automatic voltage regulation (AVR) in power generation plants
• Excitation control and field current management for hydro, thermal, and gas turbines
• Unit upgrades and module replacement within existing ABB UNITROL excitation architectures
• Reactive power and power factor control loops in utility-scale power systems

Technical Specifications