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The GE DS2020FEBNRX015A Field Exciter Module is a specialized power electronic board used in General Electric Mark V Speedtronic Turbine Control Systems and associated industrial drive panels.1
It is a critical component for controlling the magnetic field of large rotating electrical machinery, such as generators or synchronous motors.
⚡ Primary Function: Field Excitation
The module’s main purpose is to provide and precisely regulate the Direct Current (DC) excitation to the field winding of a motor or generator.2
- 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.3
- Current Rating: The 015A in the part number indicates its maximum 4$\text{DC}$ current capacity, rated for 15 Amps of field excitation.5
- Non-Reversing/Non-Plugging: The FEBNRX designation stands for Field Exciter Board Non-reversing 6$\mathbf{/}$ Non-plugging (7$\mathbf{NRX}$), signifying that it is designed for non-reversing field supplies, which simplifies the control and protection circuitry.8
⚙️ 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 (9$\text{TMR}$) architecture in critical power generation applications.10
- Hardware: The module contains power electronics like 11$\text{SCRs}$ (Silicon Controlled Rectifiers) and related circuitry necessary to convert and regulate the 12$\text{AC}$ input power into the precise 13$\text{DC}$ field current.14
- Revision: The trailing ‘A’ indicates an ‘A’ rated functional revision, meaning it is the initial or first revision of this specific functional configuration.15
The DS2020FEBNRX015A ensures that the generator operates at the required voltage and stability by providing a reliable and controlled excitation source.16
