Products Description
ABB PPC902AE101 3BHE010751R0101 Processor Module
ABB PPC902AE101 (3BHE010751R0101) is a high-performance processor module for ABB UNITROL generator excitation control system. It executes excitation regulation logic, collects analog and digital field signals, and manages real-time closed-loop voltage control for synchronous generators in power plants.
This compact board integrates multi-channel I/O and Ethernet communication, supporting fast data exchange with upper DCS and SCADA systems. It has wide temperature tolerance and robust EMC protection, widely used as spare part for power station excitation cabinet maintenance and retrofit.
Main Specifications
| No. | Item | Parameter |
|---|---|---|
| 1 | Brand | ABB |
| 2 | Model | PPC902AE101, 3BHE010751R0101 |
| 3 | Module Type | Excitation Processor Module |
| 4 | System Platform | ABB UNITROL Generator Excitation System |
| 5 | Onboard I/O | 16 × analog input, 16 × digital output |
| 6 | Communication | Ethernet for upper system telemetry |
| 7 | Dimension | 250 × 108 × 30 mm, weight:0.24kg |
| 8 | Operating Temperature | -25℃ ~ +55℃ |
Core Functions
| No. | Function Description |
|---|---|
| 1 | Execute generator excitation closed-loop voltage and reactive power control algorithm |
| 2 | Collect generator voltage, current and discrete interlock signals from field |
| 3 | Real-time data transmission and event uploading to DCS/SCADA via Ethernet |
| 4 | Excitation system fault monitoring, alarm and protection logic processing |
| 5 | Built-in self-diagnosis, status LED indicators and fault recording |
Application Scenarios
| No. | Application |
|---|---|
| 1 | Power plant UNITROL generator excitation control cabinet |
| 2 | Hydroelectric, thermal power synchronous generator excitation regulation system |
| 3 | Renewable energy station generator voltage and reactive power control |
| 4 | Real-time data exchange between excitation unit and plant DCS/SCADA |
| 5 | ABB UNITROL excitation system spare replacement and on-site maintenance |
FAQ
| No. | Question & Answer |
|---|---|
| 1 | Q:What is ABB PPC902AE101 3BHE010751R0101? A:It is a dedicated processor board for ABB UNITROL excitation system. It performs closed-loop excitation control for synchronous generators, handles signal acquisition and communicates with the plant DCS/SCADA system. |
| 2 | Q:What is its main task in excitation cabinet? A:It calculates excitation output based on generator voltage and current feedback, stabilizes generator terminal voltage, and executes protection and interlock logic during abnormal operating conditions. |
| 3 | Q:What environment can this module work in? A:It supports wide temperature range from -25℃ to +55℃ and strong EMC performance, suitable for harsh industrial environment inside power station excitation cabinets. |
