Description
📊 Product Technical Parameters
- Brand: WOODWARD
- Model: 8440-1433 (SPM-D10/N)
- Series: SPM-D10 Digital Synchronizer Series
- Product Name: Digital Synchronizer and Load Sharing Module
- Country of Origin: USA
- Condition Status: Industrial Factory Original / Brand New In-Stock
- Dimensions: Standard compact DIN-rail or door-mounted enclosure (approx. 144 mm x 144 mm x 91 mm)
- Weight: Approximately 0.8 kg (1.8 lbs)
- Original Region: United States
- Power Supply / Rating: Wide range 90 to 250 VAC/DC auxiliary power supply
⚙️ Operation Specifications and Usage Methods
- Installation Preparation: Ensure all power sources to the electrical switchgear panel are completely locked out. Mount the compact SPM-D10/N unit securely onto a panel door or DIN rail, and verify proper wiring for the wide-range 90 to 250 VAC/DC auxiliary power supply.
- Parameter Configuration: Utilize the integrated front-panel keypad and display or configuration software via the communication port to set up 2-phase generator voltage inputs, 2-phase busbar voltage inputs (up to 400 VAC measuring inputs), phase matching limits, and slip frequency parameters.
- Operational Control: Monitor real-time voltage, frequency, and phase angle measurements directly on the integrated digital display while the unit automatically synchronizes the generator and issues the breaker closure pulse.
⚡ Startup and Shutdown Sequence
- Startup Sequence:
- Inspect all terminal connections for the 2-phase generator and 2-phase busbar potential transformer (PT) measuring inputs (rated up to 400 VAC).
- Energize the wide-range 90 to 250 VAC/DC auxiliary power supply and verify that the digital display powers on successfully without fault flags.
- Start the prime mover and bring the generator up to rated speed and nominal voltage.
- Engage the synchronization mode on the SPM-D10/N; the unit will automatically match frequency and phase angle before issuing the breaker close command.
- Shutdown Sequence:
- Transfer active electrical load away from the synchronized generator using manual or automated commands.
- Open the generator circuit breaker to disconnect the unit from the shared busbar.
- Shut down the prime mover according to standard operational procedures.
- De-energize the auxiliary power supply and measuring input lines once the system is fully shut down.
💡 Product Description
The Woodward 8440-1433 (SPM-D10/N) is an advanced digital synchronizer designed for paralleling single or multi-generator systems. It features a flexible wide-range auxiliary power supply (90 to 250 VAC/DC), 2-phase measuring inputs for both generator and busbar up to 400 VAC, and an intuitive digital display interface that simplifies configuration, monitoring, and synchronization tasks in complex power generation environments.
❓ Frequently Asked Questions (Q&A)
- Q: What voltage inputs does the SPM-D10/N support for measuring?
- A: It supports 2-phase generator voltage and 2-phase busbar voltage measuring inputs rated up to 400 VAC.
- Q: What is the operating range for the auxiliary power supply?
- A: The unit accepts a wide auxiliary power range of 90 to 250 VAC/DC, making it adaptable to various control power infrastructures.
- Q: How are parameters configured on this digital model?
- A: Parameters can be set up directly using the integrated front-panel display and keypad or via software configuration tools.


