WOODWARD | 9905-005 | SPM-A Synchronizer Module

Description

📊 Product Technical Parameters

• Brand: WOODWARD
• Model: 9905-005
• Series: SPM-A Synchronizer Series
• Product Name: SPM-A Synchronizer Module
• Country of Origin: USA
• Condition Status: Industrial Factory Original / Surplus
• Dimensions: Standard industrial rack or panel mount module enclosure (approx. 22.0 cm x 15.0 cm x 7.5 cm)
• Weight: Approximately 1.2 kg (2.6 lbs)
• Original Region: United States
• Power Supply / Rating: 115 or 230 VAC RMS, 50/60 Hz frequency inputs (Bus and Generator)

⚙️ Operation Specifications and Usage Methods

• Installation Preparation: Ensure all power sources to the electrical control panel are locked out and tagged out. Mount the module securely inside the designated industrial cabinet and verify line voltage connections for the 115 or 230 VAC bus and generator inputs.
• Parameter Configuration: Select and adjust the phase angle settings, voltage matching ratio (set to 1), and configure the output jumper or terminal selection to match one of the three available impedance options: high impedance, low impedance, or EPG.
• Operational Control: Connect the synchronizer outputs to the respective governor speed control or actuator circuit to automate phase alignment, speed matching, and generator circuit breaker closure.

⚡ Startup and Shutdown Sequence

• Startup Sequence:
  1. Inspect all AC voltage and control wiring terminals to ensure correct phase rotation and secure connections.
  2. Energize the main AC bus and 115/230 VAC supply lines, verifying stable input frequency (50/60 Hz).
  3. Start the prime mover and bring the incoming generator up to rated speed and nominal voltage.
  4. Engage the SPM-A synchronizer to actively monitor phase angle and voltage differences, allowing it to automatically issue the breaker close command when synchronization parameters are met.
• Shutdown Sequence:
  1. Transfer active electrical load away from the synchronized generator using manual or automated base-load shedding.
  2. Open the generator output circuit breaker to decouple the unit from the shared electrical bus.
  3. Initiate the prime mover shutdown sequence and allow the engine or turbine to cool down completely.
  4. De-energize the AC input power supplies and control circuits once the system is fully offline.

💡 Product Description

The Woodward 9905-005 is an advanced analog SPM-A synchronizer module engineered to provide precise automatic synchronization for industrial generator sets. It accepts dual 115 or 230 VAC RMS, 50/60 Hz inputs for both the bus and generator, incorporates a 1:1 voltage matching capability, phase angle monitoring, and features flexible output configurations supporting high impedance, low impedance, and EPG governor interfaces.

❓ Frequently Asked Questions (Q&A)

• Q: What do the three selectable output options control on this unit?
  • A: The high impedance, low impedance, and EPG output options allow the synchronizer to interface correctly with different types of electronic governors and actuator control circuits.
• Q: How does the unit handle voltage matching?
  • A: It features a fixed voltage matching ratio of 1, comparing the generator potential transformer input directly against the bus voltage reference.
• Q: Can this module operate on both 50 Hz and 60 Hz systems?
  • A: Yes, it is designed to support both 50 Hz and 60 Hz frequency inputs for standard industrial power grids.