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GE DS2020FECNRX010A Field Exciter Module
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GE DS200NATOG3A Voltage Feedback Scaling Board
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GE HE693ADC410 Isolated Analog Input Module
GE HE693ADC410 Isolated Analog Input Module

GE DS2020FECNRX010A Field Exciter Module

The GE DS2020FECNRX010A is a Field Exciter Module originally manufactured by General Electric as a component of the Mark V Speedtronic turbine control system series . This printed circuit board provides field excitation for motors, supporting field supplies with amperages up to 24 A and operating with both NRX non-plugging and NRP plugging styles . The module features an “A-rated” functional product revision and is built with RX010-style PCB protective coating . The Mark V system, to which this module belongs, represents one of the final GE product lines utilizing the proprietary Speedtronic technology for gas, steam, and wind turbine control and management .

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Description

Technical Specifications

  • Manufacturer: General Electric (GE)

  • Product Type: Field Exciter Module

  • Series: Mark V Speedtronic

  • Functional Acronym: FECN

  • Field Supply Compatibility: NRX (non-plugging) and NRP (plugging) styles

  • Excitation Amperage: Up to 24 A

  • Board Configuration: 7 jumpers (JP1 through JP7), 2 terminal blocks with 3 terminals each, multiple prong-type connectors

  • Protective Coating: RX010 style

  • Mounting Style: Standoff installation on drive components

  • Cooling Requirement: Free-flowing air environment for heat dissipation

  • Dimensions: 28 cm x 10.2 cm x 12 cm

  • Weight: 2.22 kg

Functional Features

  • Motor Field Excitation Control: Provides precise field excitation for motors, regulating current to ensure stable and efficient motor operation within turbine control systems.

  • Jumper-Based Configuration: Features seven individually labeled jumpers (JP1 through JP7) for customizable hardware setups to match specific application requirements.

  • Multiple Connectivity Options: Equipped with two three-terminal terminal blocks and numerous prong-type connectors for secure signal and power wiring terminations.

  • Protective PCB Coating: The RX010-style coating protects the board from environmental contaminants including moisture, dust, and chemical exposure in industrial settings.

  • Standoff Mounting Design: Installed on standoffs attached to another drive component, with signal wires originating directly from the host component for integrated system architecture.

  • High-Voltage Operation: Designed to handle high-voltage current connections, requiring adequate ventilation and free airflow to maintain safe operating temperatures.

Application Scenarios
This module is deployed in demanding industrial power control environments:

  • Turbine Control Systems: Integrated into GE Mark V control panels for gas, steam, and wind turbines requiring precise motor field excitation .

  • Power Generation Plants: Used in generator excitation control within power stations to regulate output voltage and ensure operational stability .

  • Motor Drive Systems: Provides excitation for motor fields in large-scale industrial drive applications requiring up to 24 A excitation current .

  • Industrial Automation: Supports automated machinery and process control systems where continuous motor field control is essential for production reliability.

  • Electrical Substations: Deployed in power system automation and protection schemes requiring stable excitation control for rotating equipment.

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