WOODWARD | 8272-273 | SPM Synchronizer Module

Description

📊 Product Technical Parameters

• Brand: WOODWARD
• Model: 8272-273
• Series: SPM-A Synchronizer Series
• Product Name: SPM Synchronizer Module
• Country of Origin: USA
• Condition Status: Obsolete / Factory Original Industrial Surplus
• Dimensions: Standard modular industrial enclosure size (approx. 22.0 cm x 15.0 cm x 7.5 cm)
• Weight: Approximately 1.1 kg (2.4 lbs)
• Original Region: United States
• Power Supply / Rating: 24 VDC control power inputs via onboard terminal distribution

⚙️ Operation Specifications and Usage Methods

• Installation Preparation: Ensure all power sources to the generator control panel are completely locked out and tagged out. Mount the off-white chassis securely inside a protective industrial cabinet, utilizing the 24 integrated screw terminals for secure voltage connections.
• Parameter Configuration: Adjust the onboard tunable potentiometers carefully to calibrate phase offsetting and stability parameters to match the dynamic response of the prime mover governor system.
• Operational Control: Interface the synchronizer module with compatible load sharing control systems to automate generator frequency matching, phase alignment, and breaker closure commands.

⚡ Startup and Shutdown Sequence

• Startup Sequence:
  1. Verify all external wiring across the 24 screw terminals, ensuring proper isolation on incoming bus and generator potential transformer (PT) lines.
  2. Energize the 24 VDC control power distribution panel and check that internal module circuitry powers up correctly.
  3. Bring the incoming generator up to rated speed and nominal frequency using the primary governor control.
  4. Enable the SPM synchronizer automatic matching circuit to monitor phase angle difference and issue the parallel closure signal when synchronization parameters align.
• Shutdown Sequence:
  1. Transfer active electrical load away from the synchronizing unit using manual or automated commands.
  2. Open the generator output circuit breaker to safely decouple the unit from the common electrical bus.
  3. Shut down the prime mover engine or turbine according to standard mechanical procedures.
  4. De-energize the auxiliary 24 VDC control power supply to the synchronizer module once the system is fully offline.

💡 Product Description

The Woodward 8272-273 is an obsolete analog-era SPM synchronizer module designed to provide automatic generator synchronization for industrial power generation setups. Featuring a distinctive off-white enclosure, 24 screw terminals, and physical tuning knobs for stability and phase offset adjustment, it pairs seamlessly with legacy load sharing modules to ensure safe, smooth parallel grid transitions.

❓ Frequently Asked Questions (Q&A)

• Q: What is the primary function of the 24 screw terminals on this unit?
  • A: They provide direct, hardwired connection points for incoming bus voltages, generator voltages, 24 VDC power supply lines, and relay contact outputs to the synchronizer breaker circuit.
• Q: How are phase offset and stability adjusted on this obsolete model?
  • A: They are tuned manually using onboard precision potentiometers accessible on the module faceplate to optimize dynamic matching speed.
• Q: What type of load sharing governors work best with this synchronizer?
  • A: It is traditionally paired with classic Woodward EPG or compatible analog load sharing and speed control architectures.