GE DS3800DSFE Sync Field Daughter Card

GE DS3800DSFE Sync Field Daughter Card

The primary purpose of the DS3800DSFE is to manage the critical process of synchronizing a generator with the electrical grid. This is a crucial step during startup, as the generator’s output voltage and frequency must closely match those of the grid before the generator breaker is closed. Failure to do so can cause severe damage to the generator and destabilize the grid. The card’s key roles include:

  • Field Excitation Control: The board controls the field current in the generator’s rotor windings. By adjusting this current, the card can precisely manipulate the magnetic field strength, which in turn influences the output voltage and frequency of the generated power.
  • Synchronization Control: The card ensures that the generator’s output voltage and frequency match the grid’s voltage and frequency. It can generate synchronization signals and monitor parameters such as voltage, frequency, and phase to ensure a smooth and accurate synchronization process.
  • Automatic Voltage Regulation (AVR): It may include AVR functionality to maintain a stable output voltage regardless of load variations. It senses the generator’s output voltage and makes necessary adjustments to the excitation system to ensure voltage stability.
  • Protection Mechanisms: The card incorporates protection features to safeguard the generator and the power system. This can include overvoltage, undervoltage, and overcurrent protection.
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The GE DS3800DSFE is a specialized Synchronization Field Exciter Card used in the GE Speedtronic Mark IV series of turbine control systems. As a “daughter card,” it plugs into a larger, main circuit board to extend its functionality, specifically for controlling the generator’s excitation system to facilitate synchronization with the electrical grid.

 

Function and Purpose

 

The primary purpose of the DS3800DSFE is to manage the critical process of synchronizing a generator with the electrical grid. This is a crucial step during startup, as the generator’s output voltage and frequency must closely match those of the grid before the generator breaker is closed. Failure to do so can cause severe damage to the generator and destabilize the grid. The card’s key roles include:

  • Field Excitation Control: The board controls the field current in the generator’s rotor windings. By adjusting this current, the card can precisely manipulate the magnetic field strength, which in turn influences the output voltage and frequency of the generated power.
  • Synchronization Control: The card ensures that the generator’s output voltage and frequency match the grid’s voltage and frequency. It can generate synchronization signals and monitor parameters such as voltage, frequency, and phase to ensure a smooth and accurate synchronization process.
  • Automatic Voltage Regulation (AVR): It may include AVR functionality to maintain a stable output voltage regardless of load variations. It senses the generator’s output voltage and makes necessary adjustments to the excitation system to ensure voltage stability.
  • Protection Mechanisms: The card incorporates protection features to safeguard the generator and the power system. This can include overvoltage, undervoltage, and overcurrent protection.

 

Technical and Design Features

 

The DS3800DSFE is a legacy industrial control board, reflecting the technology of the GE Mark IV series.

  • Legacy Part: The “DS3800” prefix indicates that it is a legacy GE industrial part from a series no longer in production. These boards are typically sourced from surplus, repair, and refurbishment channels for the maintenance of older turbine control systems.
  • Daughter Card: Its “daughter card” designation means it is a smaller, auxiliary card that connects to a larger main board, typically through a set of pin headers. This modular design allows for flexible system configurations.
  • Industrial Grade: Like other GE industrial control components, this board is designed for a harsh industrial environment.
  • Number of Channels: The board has 12 channels to support its control and monitoring functions.

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