Products Description
ABB UAC389AE02 HIEE300888R0002 GCU General Control Unit in stock
ABB UAC389AE02 with part number HIEE300888R0002 is a GCU general control unit for ABB UNITROL generator static excitation system. It serves as the core processor board, performing high-speed closed-loop AVR voltage regulation and excitation protection logic for synchronous generators.
This high-performance control board integrates signal processing, logic calculation and multi-channel communication interfaces. It is widely deployed in power plant excitation cabinets and is a critical spare part for maintenance and overhaul of UNITROL excitation systems.
Main Specifications
| No. | Item | Parameter |
|---|---|---|
| 1 | Brand | ABB |
| 2 | Model | UAC389AE02, Part No:HIEE300888R0002 |
| 3 | Module Type | GCU General Control Unit / Excitation Processor Board |
| 4 | Application System | UNITROL Series Static Excitation System |
| 5 | Core Function | AVR closed-loop regulation, excitation limit and protection logic |
| 6 | Communication | Ethernet, PROFIBUS, Modbus TCP |
| 7 | Mounting | Rack mounted inside generator excitation cabinet |
| 8 | Operating Temp | -20℃ ~ +60℃ |
Core Functions
| No. | Function Description |
|---|---|
| 1 | Collect generator voltage and current signals to realize automatic voltage closed-loop regulation |
| 2 | Execute multi-limit protection: over-excitation, under-excitation and stator current limiting logic |
| 3 | Send pulse control commands to GDI gate drive boards and receive power unit fault feedback |
| 4 | On-board self-diagnosis for hardware and measurement faults, store alarm and event logs |
| 5 | Exchange real-time operating data with plant DCS and HMI for remote monitoring and parameter setup |
Application Scenarios
| No. | Application |
|---|---|
| 1 | Thermal power plant steam turbine generator UNITROL excitation cabinet |
| 2 | Combined cycle gas turbine generator excitation control system |
| 3 | Hydropower station large synchronous generator voltage regulation system |
| 4 | Power plant excitation cabinet overhaul, main control board replacement and emergency maintenance |
| 5 | Power generation plant spare parts inventory for UNITROL excitation system |
FAQ
| No. | Question & Answer |
|---|---|
| 1 | Q:What is ABB UAC389AE02 HIEE300888R0002? A:It is GCU general control unit (main processor board) for ABB UNITROL excitation system, responsible for generator AVR and excitation protection logic. |
| 2 | Q:What boards work with UAC389AE02? A:It works together with UNS0881 series GDI gate drive interface boards to control IGBT power units in excitation cabinet. |
| 3 | Q:What is its core advantage? A:High-speed real-time control and comprehensive excitation protection, ensuring stable generator terminal voltage under varying load conditions. |
