Products Description
ABB PPA322B HIEE300016R2 HIEE400235R1 Excitation Control Board
ABB PPA322B with part numbers HIEE300016R2 and HIEE400235R1 is a printed circuit board used in ABB generator excitation control systems. It handles analog signal acquisition, measurement processing and closed-loop voltage regulation for synchronous generators.
This board integrates signal conditioning and communication interfaces to exchange data with the excitation controller and DCS. It is an obsolete component, mainly supplied as maintenance spare parts for legacy power plant excitation cabinets.
Main Specifications
| No. | Item | Parameter |
|---|---|---|
| 1 | Brand | ABB |
| 2 | Model | PPA322B, HIEE300016R2, HIEE400235R1 |
| 3 | Module Type | Generator Excitation Control PCB Board |
| 4 | Application System | ABB Large Generator Excitation Control System |
| 5 | Core Function | Signal sampling, AVR regulation, excitation limit protection |
| 6 | Signal Type | Generator voltage, current, excitation feedback signals |
| 7 | Mounting | Rack mounted inside excitation control cabinet |
| 8 | Product Status | Discontinued, spare replacement only |
Core Functions
| No. | Function Description |
|---|---|
| 1 | Collect generator terminal voltage and current signals for automatic voltage regulator closed-loop control |
| 2 | Implement over-excitation, under-excitation and stator current limit protection logic |
| 3 | Process interlock and trip signals, output commands to power converter units |
| 4 | On-board self-diagnosis for circuit faults, with alarm and event recording capability |
| 5 | Realize data communication between excitation system and plant DCS / HMI system |
Application Scenarios
| No. | Application |
|---|---|
| 1 | Thermal power plant steam turbine generator 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, spare board replacement and emergency maintenance |
| 5 | Legacy excitation system spare parts inventory and modernization projects |
FAQ
| No. | Question & Answer |
|---|---|
| 1 | Q:What is ABB PPA322B HIEE300016R2 HIEE400235R1? A:It is excitation control PCB for ABB generator excitation system, responsible for signal sampling, AVR and excitation protection logic. |
| 2 | Q:What is the difference between PPA322B and PMA323BE? A:Both are excitation boards for ABB old excitation systems, different hardware versions for different rack configurations. |
| 3 | Q:Is this board still in production? A:ABB has discontinued this model, only available as spare parts for maintenance of existing excitation systems. |
