GE DS2020FECNRP020A Field Exciter Module

GE DS2020FECNRP020A Field Exciter Module

GE DS2020FECNRP020A Field Exciter Module is a specialized power electronic circuit board assembly used in General Electric Mark V Speedtronic Turbine Control Systems and industrial drives (like the DC2000 Series).1

Its function is to provide precise control and regulation of Direct Current (2$\text{DC}$) excitation to the field windings of a synchronous motor or generator.3

⚡ Core Function and Specifications

The module is essential for controlling the magnetic field of large rotating machinery, thereby regulating output voltage and reactive power.

  • Excitation Control: It converts $\text{AC}$ input power into a controlled $\text{DC}$ current for the field winding, managing the machine’s magnetic field strength.
  • Current Rating: The 020A in the part number signifies its 20 Amp rating.4 This module is compatible with fields requiring up to 5$\mathbf{24 \text{ Amps DC}}$ of excitation current.6
  • Input Power: It typically operates with an 7$\text{AC}$ input voltage up to 600 Volts AC (8$\pm 10\%$), single-phase.9
  • Designation:
    • FECN stands for Field Exciter Control Non-reversing.10
    • NRP (Non-Reversing Plugging) indicates compatibility with Plugging field supplies, where field current can be momentarily reversed for controlled, rapid deceleration.
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الوصف

The GE DS2020FECNRP020A Field Exciter Module is a specialized power electronic circuit board assembly used in General Electric Mark V Speedtronic Turbine Control Systems and industrial drives (like the DC2000 Series).1

Its function is to provide precise control and regulation of Direct Current (2$\text{DC}$) excitation to the field windings of a synchronous motor or generator.3

⚡ Core Function and Specifications

The module is essential for controlling the magnetic field of large rotating machinery, thereby regulating output voltage and reactive power.

  • Excitation Control: It converts $\text{AC}$ input power into a controlled $\text{DC}$ current for the field winding, managing the machine’s magnetic field strength.
  • Current Rating: The 020A in the part number signifies its 20 Amp rating.4 This module is compatible with fields requiring up to 5$\mathbf{24 \text{ Amps DC}}$ of excitation current.6
  • Input Power: It typically operates with an 7$\text{AC}$ input voltage up to 600 Volts AC (8$\pm 10\%$), single-phase.9
  • Designation:
    • FECN stands for Field Exciter Control Non-reversing.10
    • NRP (Non-Reversing Plugging) indicates compatibility with Plugging field supplies, where field current can be momentarily reversed for controlled, rapid deceleration.

⚙️ Technical Features

As a critical component of the modular $\text{DS}2020$ series, the board includes several features for configuration and connectivity:

  • Jumpers: The board is equipped with seven configurable jumpers (11$\text{JP}1$ through 12$\text{JP}7$) for customizing the board’s circuitry to match specific drive requirements.13
  • Terminal Blocks: It features two terminal blocks, typically with three terminals each, used for connecting signal wires from other components in the drive or control system.14
  • Protection: The module is designed to support various protection functions within the 15$\text{Mark V}$ system, such as overvoltage, overcurrent, and excitation loss protection, ensuring the safety and longevity of the motor/generator.16

This module is a key interface for the $\text{Mark V}$ control logic to manage and maintain the stability and efficiency of the connected rotating machinery.

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