GE DS200NATOG3A Voltage Feedback Scaling Board

Technical Specifications

• Manufacturer: General Electric (GE)
• Model: DS200NATOG3A
• Series: Mark V Speedtronic, DS200 Next Generation LCI
• Board Type: Voltage Feedback Scaling & Sensing Board
• Dimensions: 140 mm × 68 mm × 105 mm
• Weight: 0.45 kg
• Input Voltage Ranges (Configurable): 6900 V, 4200 V, 3300 V, 2200 V, 1200 V (AC/DC)
• Attenuation Network: 5 precision resistor strings for independent channel scaling
• Connectors:
  • 1 × 20-pin ribbon header (output to controller)
  • Multiple stab connectors (input voltage selection)
• Configuration: 3 input stab connectors + 2 wire jumpers per resistor string for range setup
• Power Supply: 24 V DC (±5%), 300 mA typical
• Operating Temperature: -40°C to +70°C
• Storage Temperature: -40°C to +85°C
• Humidity: 5%–95% (non-condensing)
• Certifications: UL, EC, CSA, NATO transient control standards
• MTBF: ≥ 90,000 hours
• Compatibility: GE Mark V, LS2100 LCI systems; works with gate distribution and VME backplane boards

Key Features

1. Precision Voltage Attenuation & Scaling
   • Delivers accurate, repeatable attenuation of high SCR bridge voltages down to controller-compatible levels.
   • Five independent resistor strings enable multi-channel, high-resolution feedback for complex power control loops.
2. Flexible Configuration for Diverse Voltages
   • Supports five selectable input voltage ranges (1200 V to 6900 V) via jumper and connector combinations.
   • Adapts seamlessly to different SCR bridge outputs and system requirements without hardware replacement.
3. Robust & Rugged Industrial Design
   • Built with industrial-grade, vibration-resistant components and EMI-shielded PCB layout for harsh environments.
   • Wide operating temperature and humidity tolerance ensure reliability in extreme conditions.
4. High Reliability & Safety Compliance
   • Meets strict UL, EC, CSA, and NATO standards for controlled transients and electrical safety.
   • Reduces risk of voltage spikes damaging downstream control circuitry.
5. Seamless System Integration
   • Directly compatible with GE Mark V turbine controls and LS2100 static starters for plug-and-play integration.
   • Interfaces with gate distribution status boards and VME backplanes for complete system functionality.
6. Simplified Maintenance & Calibration
   • Clear labeling of jumpers, connectors, and test points streamlines on-site setup and troubleshooting.
   • No complex software required for basic configuration; hardware-based adjustments ensure stability.

Application Scenarios

• Power Generation (Primary)
  • Gas/Steam Turbine Control: Provides precise SCR bridge voltage feedback for GE Mark V Speedtronic systems, regulating speed, load, and excitation in power plants.
  • Static Starter (LCI) Systems: Critical for LS2100 load commutated inverters used in turbine startup and synchronization.
  • Generator Excitation Control: Conditions high excitation voltages for accurate monitoring and regulation.
• Oil & Gas Industry
  • Pipeline Compressor Stations: Controls SCR-driven motor drives for compressors, ensuring stable pressure and flow.
  • Refinery Process Drives: Regulates high-power rectifier systems for pumps, fans, and reactors.
• Industrial Automation & Drives
  • High-Power Motor Control: Used in mining, metals, and cement plants for SCR-based variable frequency drives.
  • UPS & Power Quality Systems: Conditions feedback for large uninterruptible power supplies and grid support equipment.
• Military & NATO Applications
  • Defense Power Systems: Complies with NATO standards for mobile and fixed military power generation and distribution.
  • Shipboard Power Management: Withstands marine environments for turbine and generator control on naval vessels.