GE DS2020FEBNRX025A Field Exciter Module

GE DS2020FEBNRX025A Field Exciter Module

GE DS2020FEBNRX025A Field Exciter Module is a specialized power electronic board used in General Electric Mark V Speedtronic Turbine Control Systems and their associated drive panels.1 It is critical for controlling the magnetic field of large rotating electrical machinery.2

⚡ Primary Function: Field Excitation Control

The module’s main purpose is to provide and precisely regulate the Direct Current (3$\text{DC}$) excitation to the field winding of a synchronous motor or generator.4

  • Voltage Regulation: By controlling the strength of the magnetic field, the module allows for the accurate adjustment and stabilization of the generator’s output voltage and reactive power.
  • Current Rating: The 025A in the part number indicates its maximum 5$\text{DC}$ current capacity, rated for 25 Amps of field excitation.6
  • Non-Reversing/Non-Plugging: The FEBNRX designation stands for Field Exciter Board Non-reversing / Non-plugging ($\mathbf{NRX}$), signifying that it is designed for non-reversing field supplies, which simplifies the control and protection circuitry.
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الوصف

The GE DS2020FEBNRX025A Field Exciter Module is a specialized power electronic board used in General Electric Mark V Speedtronic Turbine Control Systems and their associated drive panels.1 It is critical for controlling the magnetic field of large rotating electrical machinery.2

⚡ Primary Function: Field Excitation Control

The module’s main purpose is to provide and precisely regulate the Direct Current (3$\text{DC}$) excitation to the field winding of a synchronous motor or generator.4

  • Voltage Regulation: By controlling the strength of the magnetic field, the module allows for the accurate adjustment and stabilization of the generator’s output voltage and reactive power.
  • Current Rating: The 025A in the part number indicates its maximum 5$\text{DC}$ current capacity, rated for 25 Amps of field excitation.6
  • Non-Reversing/Non-Plugging: The FEBNRX designation stands for Field Exciter Board Non-reversing / Non-plugging ($\mathbf{NRX}$), signifying that it is designed for non-reversing field supplies, which simplifies the control and protection circuitry.

⚙️ Technical Context

  • Series: It belongs to the DS2020 family of modular assemblies, which are integral to the Mark V legacy series, a system known for its high reliability and Triple Modular Redundancy (7$\text{TMR}$) architecture in critical power generation applications.8
  • Hardware: The module is a specialized 9$\text{PCB}$ (Printed Circuit Board) assembly containing power electronic components like SCRs (Silicon Controlled Rectifiers) and related circuitry necessary to convert and regulate the 10$\text{AC}$ input power into the precise 11$\text{DC}$ field current.12
  • Protection: The 13$\text{RX}$ in the part number often denotes a specific PCB coating (e.g., 14$\text{RX}025$ Coating) used to protect the circuitry against harsh environmental factors like moisture and dust, enhancing its reliability in industrial settings.15

The DS2020FEBNRX025A ensures that the generator operates at the required voltage and stability by providing a reliable and controlled excitation source.16

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