IS200GDDDG1ABA – Gate Driver and Dynamic Discharge Board

The IS200GDDDG1ABA is a Gate Driver and Dynamic Discharge Board developed by General Electric (GE) as a vital component of the GE EX2100 Excitation Control System. Designed to manage both gate firing signals and dynamic discharge functions, this board is essential for high-performance control and safe operation of the exciter’s power bridge. It ensures efficient gate pulse generation for Insulated Gate Bipolar Transistors (IGBTs) and provides rapid discharge of stored energy during fault or shutdown scenarios.

This board receives logic-level firing signals from the controller, conditions them, and transmits precise gate pulses to the power devices. Simultaneously, it manages discharge resistors to safely dissipate energy from the DC link when needed—protecting the exciter and generator from overvoltage and transient events. The GDDD board supports rapid shutdown in response to protection triggers, enhancing the safety and responsiveness of the excitation system.

The IS200GDDDG1ABA integrates seamlessly within the EX2100 system architecture and includes isolated channels for gate drive outputs, onboard fault diagnostics, and LED indicators for operational status. Built with robust industrial environments components and advanced protective circuitry, it is well-suited for the demanding environments of power generation facilities.

Common applications include turbine-generator systems in thermal, hydro, and gas power plants where reliable and accurate excitation control is essential. The board contributes to enhanced generator stability, improved fault tolerance, and minimized downtime during both planned and unplanned operational events.

Whether for system upgrades, replacements, or new installations, the IS200GDDDG1ABA ensures optimal performance, protection, and lifecycle compatibility within the GE EX2100 platform.

Key Features:

• Used in GE EX2100 Excitation Systems

• Provides IGBT gate drive and control

• Manages dynamic energy discharge

• High-speed, isolated signal processing

• Supports fault and overvoltage protection

• Industrial-grade design with protective coating

• Seamless integration with EX2100 control architecture

• Enhances excitation system safety and efficiency

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