الوصف
The GE DS2020FEANRX025A Field Exciter Module is a printed circuit board (PCB) that serves as a specialized power supply for regulating field excitation in GE industrial control systems.1
⚡ Function and Application
This module is a component of the GE Mark V Turbine Control System Series, where its function is to provide precise control over the magnetic field in rotating electrical machinery.2
- Primary Function: To manage and regulate the 3$\text{DC}$ current supplied to the field windings of synchronous motors or generators.4 This process, called field excitation, is essential for maintaining the stability, voltage, and reactive power of the machine.5
- Application Environment: It is typically found in the control systems for gas, steam, and wind turbine applications, ensuring optimal performance of the connected generator or motor.6
⚙️ Technical Specifications
The module’s part number contains key information regarding its design and capabilities:
- DS2020: Denotes its assembly type within the modular 7$\text{DS}200$ series for the 8$\text{Mark V}$ system.9
- FEAN: Stands for Field Exciter Assembly Non-reversing.
- RX025: Indicates the type of PCB coating (RX) and its maximum current rating (025).10
| Feature | Specification / Description |
| Product Series | GE Mark V Turbine Control System |
| Functional Name | Field Exciter Module / Board |
| Current Rating | $\mathbf{25 \text{ Amps}}$ (Maximum excitation current capability) |
| Field Supply Style | NRX (Non-Reversing / Non-Plugging) compatible |
| Compatibility | Non-reversing field supplies (designed to operate efficiently without the risk of plugging) |
| Shunt Capacity | Includes an internal shunt rated for 25 amps |
The module also contains voltage-limiting hardware components as part of the overall Mark V system’s standardized voltage limitation strategy.11



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