GE IS200GGXDG1ABB Expander Diode/Source Board

GE IS200GGXDG1ABB Expander Diode/Source Board

د.إ8,888.00

GE IS200GGXDG1ABB Expander Diode/Source Board (functional acronym GGXD) is a critical interface component used in General Electric’s Mark VI Speedtronic Turbine Control System.1

This board’s primary function is to provide the necessary communication and feedback hardware between the main control processor and high-power circuitry that utilize a diode or dynamic braking source.2

⚙️ Core Functions

The GGXD board sits in the control cabinet rack and serves as a specialized link, ensuring the main controller can safely and accurately monitor and manage the high-power section:3

  1. Bridge Interface: It connects the BICI (Bridge Interface Control Board)—the card that generates the control logic—to an external diode source or a dynamic braking (DB) circuit.4
  2. Feedback Conversion: It provides the analog and fiber-optic feedback hardware required to safely isolate and condition the high-voltage/current signals from the power circuitry before sending them back to the BICI board for regulation and monitoring.5
  3. Communication Management: It uses robust signaling methods, such as RS-422 transceivers, for reliable exchange of gating commands and status signals with the BICI board.6
  4. Diagnostics: The board includes LED indicators (for signals like P5 OK, GDPA OK, and 7$115\text{V}$ OK) and numerous test points (TPs) to aid in on-site troubleshooting.8
  5. Power Interface: It receives necessary high-frequency power from an associated GDPA (Gate Driver Power Assembly) board to power its internal circuits.9
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الوصف

The GE IS200GGXDG1ABB Expander Diode/Source Board (functional acronym GGXD) is a critical interface component used in General Electric’s Mark VI Speedtronic Turbine Control System.1

This board’s primary function is to provide the necessary communication and feedback hardware between the main control processor and high-power circuitry that utilize a diode or dynamic braking source.2

⚙️ Core Functions

The GGXD board sits in the control cabinet rack and serves as a specialized link, ensuring the main controller can safely and accurately monitor and manage the high-power section:3

  1. Bridge Interface: It connects the BICI (Bridge Interface Control Board)—the card that generates the control logic—to an external diode source or a dynamic braking (DB) circuit.4
  2. Feedback Conversion: It provides the analog and fiber-optic feedback hardware required to safely isolate and condition the high-voltage/current signals from the power circuitry before sending them back to the BICI board for regulation and monitoring.5
  3. Communication Management: It uses robust signaling methods, such as RS-422 transceivers, for reliable exchange of gating commands and status signals with the BICI board.6
  4. Diagnostics: The board includes LED indicators (for signals like P5 OK, GDPA OK, and 7$115\text{V}$ OK) and numerous test points (TPs) to aid in on-site troubleshooting.8
  5. Power Interface: It receives necessary high-frequency power from an associated GDPA (Gate Driver Power Assembly) board to power its internal circuits.9

🛠️ Technical Details

  • System Series: GE Mark VI Speedtronic Turbine Control System.10
  • Role: Interface and feedback collection for power conversion circuits.11
  • Connectors: It includes multiple connectors for power, I/O, and status feedback, such as:
    • A large connector (PRSC) for I/O with the BICI board.12
    • Specific connectors for the GDPA and NATO boards.13
    • Duplex connectors for status feedback or firing commands of the DB IGCTs (Integrated Gate-Commutated Thyristors).14
  • Revision: The suffix G1ABB indicates a specific, later manufacturing revision of the board compared to the original G1A, meaning it may include minor component or design updates.

The GGXD board is essential for the stable and reliable control of the power flow in GE’s turbine and drive systems.

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