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Woodward 8444-1091A

  • Product Name: ProTech TMR Overspeed Protection Module
  • Product Description: A triple modular redundant (TMR) overspeed protection module designed to prevent catastrophic failure of rotating machinery. It provides independent speed monitoring and trip functionality for engines, turbines, and compressors in safety-critical applications.
  • Technical Specifications:
    • Power Supply: 120 VAC/VDC (90–150 V range)

Detailed content

    • Speed Input: 3 independent magnetic pickup channels
    • Trip Speed Range: 250 RPM to 25,000 RPM (field-adjustable)
    • Voting Logic: 2-out-of-3 voting for fault tolerance
    • Response Time: Less than 5 ms
    • Operating Temperature: –40 °C to +70 °C
    • Safety Rating: SIL 3 compliant
    • Dimensions: 274 mm × 214 mm × 59 mm
  • Key Features:
    • TMR architecture eliminates single points of failure.
    • Independent power supplies for each speed sensing channel.
    • Hot-swappable design for online replacement without system shutdown.
    • Comprehensive self-diagnostics and fault logging.
    • Compatible with all Woodward control systems and third-party devices.
  • Applications:
    • Safety-critical gas/steam turbine overspeed protection.
    • Industrial diesel/gas engine protection systems.
    • Marine propulsion and auxiliary engine safety systems.
    • Oil & gas compressor and pump protection.
    • Nuclear and thermal power generation plants.

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