Description
ABB UAC389AE02 HIEE300888R0002 Excitation Control Unit, GCU General Control Module
Product Overview
ABB UAC389AE02, part number HIEE300888R0002, is the GCU general control unit for Unitrol excitation systems. As the core processor module of the excitation system, it performs generator excitation closed-loop AVR regulation, control logic operation, signal acquisition, pulse output and multi-channel communication. It supports redundant configuration to stabilize generator voltage and reactive power. It is an essential replacement spare part in excitation cabinets of thermal and hydroelectric generating units.
Key Features
- High-performance industrial processor with fast closed-loop excitation regulation
- Supports multiple control modes: constant voltage, constant reactive power and constant current
- Integrated protection logic for overvoltage, overcurrent and loss-of-excitation
- Multiple Ethernet ports for redundant communication
- SIL2 safety level compliant for power industry requirements
- Rack-mount plug-in design for convenient on-site replacement
- Onboard LED indicators for status monitoring and fault diagnosis
Applications
It is widely used in Unitrol generator excitation regulation systems for hydro and thermal power plants. It also works with ABB DCS systems to handle excitation control, unit parameter adjustment, interlock protection and data uploading.
