GE DS200FSAAG2A
GE DS200FSAAG2A
GE DS200FSAAG2A

GE DS200FSAAG2A | Mark V Series Field Supply Gate Amplifier Board for Gas Turbine Control

  • Brand: GE (General Electric)
  • Model: DS200FSAAG2A (Variant of Mark V Series)
  • Product Type: Field Supply Gate Amplifier Board
  • Series: Mark V (Gas/Steam Turbine Control Systems)
  • Core Function: Serves as a high-power interface​ for driving gate signals of thyristors (SCRs) or silicon-controlled rectifiers in turbine exciter/static starter circuits. Amplifies low-level control signals from regulator boards to the current/voltage levels required for reliable power semiconductor triggering, ensuring precise timing, isolation, and protection for stable excitation and turbine startup.
  • Key Specs:
    • Gate Drive Output: 2–5 V (typical trigger voltage), 2–10 A (peak pulse-rated current)
    • Isolation: ≥2500 V AC (high-voltage isolation between control and power sides)
    • Operating Temperature: 0°C to +70°C (control cabinet environment)
    • Input Voltage: 24 V DC (nominal, 20–28 V DC range)
    • Current Consumption: 150 mA max
    • Form Factor: 6U Eurocard (160 mm × 233 mm, standard for Mark V devices)
Get a Quote
Manufacturer:
Part number: DS200FSAAG2A
Our extensive catalogue, including : DS200FSAAG2A , is available now for dispatch to the worldwide.

Description

DS200FSAAG2A: Product Overview​
The GE DS200FSAAG2A​ is a field supply gate amplifier board​ designed specifically for GE Mark V gas/steam turbine control systems, a legacy platform renowned for its reliability in industrial power generation. As part of the Mark V ecosystem, it acts as the “power bridge” between low-level control signals (from regulator boards) and high-power gate signals (for SCRs/thyristors), which are critical for turbine exciter operation and startup sequences. Its primary role is to ensure precise, isolated, and protected gate drive—essential for maintaining turbine stability and preventing damage to power semiconductors.
Role in Automation Systems:
Positioned as a “gate drive interface” in Mark V architectures, the DS200FSAAG2A performs three key functions:
  1. Signal Amplification: Converts low-level control signals (e.g., 5 V DC from a regulator) into high-current pulses (up to 10 A) to trigger SCRs/thyristors in the exciter circuit.
  2. Isolation: Provides galvanic isolation (≥2500 V AC) between the control side (regulator boards) and power side (exciter circuit), protecting sensitive control electronics from high-voltage transients.
  3. Protection: Includes diagnostic circuits (e.g., overcurrent, overvoltage) and status indicators to monitor gate drive health, ensuring reliable operation and minimizing downtime.
Core Functionality:
  • High-Power Gate Drive: Delivers 2–10 A peak current (pulse-rated) to drive capacitive gate loads (SCRs/thyristors), with adjustable pulse width (typically 50–200 μs) for precise timing.
  • Isolation: High-voltage isolation (≥2500 V AC) between control and power sides prevents ground loops and protects control circuits from power side transients.
  • Diagnostic Features: Onboard LEDs (e.g., “Gate Active,” “Fault”) provide real-time status feedback, while test points allow technicians to verify signal integrity during maintenance.
  • Modular Design: Fits into standard Mark V I/O racks, enabling easy expansion or replacement. The hot-swappable design minimizes downtime during maintenance.
Platform Benefits (Mark V Series):
The DS200FSAAG2A inherits the Mark V platform’s strengths, including:
  • Reliability: The Mark V system is the industry standard for gas turbine control, with a proven track record of 24/7 operation in power plants worldwide.
  • Legacy Compatibility: The board is designed to work with existing Mark V components (e.g., regulator boards, exciter circuits), reducing the cost of system upgrades.
  • Scalability: Supports expansion with additional gate amplifier boards to accommodate growing system demands (e.g., adding more exciter circuits for larger turbines).

    GE DS200FSAAG2A

    GE DS200FSAAG2A

Technical Specifications​
  • Model Number: DS200FSAAG2A (Variant of Mark V Series)
  • Manufacturer: GE (General Electric)
  • Product Type: Field Supply Gate Amplifier Board
  • Series: Mark V (Gas/Steam Turbine Control)
  • Form Factor: 6U Eurocard (160 mm × 233 mm)
  • Input Voltage: 24 V DC (nominal, 20–28 V DC range)
  • Current Consumption: 150 mA max
  • Gate Drive Output:
    • Voltage: 2–5 V (typical gate trigger voltage)
    • Current: 2–10 A (peak, pulse-rated for capacitive gate loads)
    • Pulse Width: Adjustable (50–200 μs typical)
  • Isolation: ≥2500 V AC (control side to power side)
  • Operating Temperature: 0°C to +70°C (control cabinet environment)
  • Storage Temperature: -30°C to +85°C
  • Humidity: 5–95% non-condensing
  • Weight: ~0.38 kg (0.84 lbs)
  • Certifications: CE, UL (inferred from GE industrial product standards)
Core Features & Customer Value​
1. Precise Gate Drive Timing:
The DS200FSAAG2A’s adjustable pulse width (50–200 μs) ensures precise triggering of SCRs/thyristors, critical for maintaining turbine exciter stability. For example, in a gas power plant, the board accurately times the gate signals to the exciter SCRs, ensuring consistent generator voltage output.
2. High-Voltage Isolation:
The ≥2500 V AC isolation between control and power sides protects sensitive regulator boards from high-voltage transients (e.g., from the exciter circuit), reducing the risk of control circuit damage and downtime.
3. Rugged Industrial Design:
The 6U Eurocard form factor and industrial-grade components enable 24/7 operation in harsh environments (e.g., power plant control rooms). The board’s conformal coating protects against dust and moisture, extending its lifespan.
4. Easy Troubleshooting:
Onboard LEDs (“Gate Active,” “Fault”) provide instant visual feedback on gate drive status. For example, if the “Fault” LED illuminates, technicians can quickly reference the Mark V manual to identify issues (e.g., overcurrent in the gate circuit) and take corrective action.
5. Cost-Effective Maintenance:
The hot-swappable design allows technicians to replace the board without shutting down the entire turbine system, minimizing downtime and maintenance costs.

GE DS200FSAAG2A

GE DS200FSAAG2A

Typical Applications​
The GE DS200FSAAG2A​ is widely used in industrial automation systems for:
  1. Power Generation:
    • Drives gate signals for SCRs/thyristors in turbine exciter circuits, ensuring stable generator voltage output in gas/steam power plants.
  2. Manufacturing:
    • Used in industrial motor drives (e.g., conveyor belts, pumps) to amplify gate signals for SCR-based speed controllers.
  3. Petrochemical Industry:
    • Controls gate signals for SCRs in refinery equipment (e.g., distillation column heaters), ensuring safe and efficient operation in hazardous environments.

Related products