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Woodward 8440-1686

Product Name: SPM-D11 Series Automatic Synchronizer Module

Product Introduction: A high-performance microprocessor-based synchronizer designed for single or parallel generator sets, providing accurate frequency, phase, and voltage matching for seamless grid connection. It works with Woodward or compatible speed controllers and AVRs, ensuring reliable synchronization in industrial and commercial power systems.

Detailed content

Technical Specifications:
  • Power Supply: 12/24 VDC (9.5–32 VDC operating range)
  • Voltage Sensing: 120–480 VAC, single/three-phase, true-RMS
  • Frequency Range: 40–70 Hz
  • Synchronization Accuracy: ≤0.5° phase angle, ≤0.1 Hz frequency difference
  • Response Time: ≤2 seconds (full synchronization)
  • Control Output: Analog bias signal (4–20 mA) to speed/voltage controllers
  • Communication: Modbus RTU (optional)
  • Operating Temperature: -20 °C to +70 °C
  • Protection Grade: IP30 (panel-mounted)

    Functional Features:

  • Automatic frequency, phase, and voltage matching for generator synchronization
  • Phase-match or slip-frequency synchronization modes for flexibility
  • Two-phase or three-phase sensing of generator and bus voltages
  • Integrated synchro-check protection (prevents out-of-phase closing)
  • Adjustable synchronization parameters (speed, voltage, phase tolerance)
  • LED indicators for synchronization status and fault alarms
  • Compact design for panel or DIN rail mounting
  • Compatible with Woodward easYgen, 505, and 72X series controllers

    Application Scenarios:

  • Industrial generator set parallel operation with grid or other gensets
  • Marine vessel integrated power distribution systems
  • Data center and hospital emergency power grid connection
  • Island and micro-grid generator synchronization
  • Commercial complex backup generator parallel systems

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