Description
⚙️ Product Datasheet & Technical Parameters
- Brand: WOODWARD
- Model: 8440-1715 (SPM-D11)
- Series: SPM-D11 Synchronizer Series
- Product Name: Digital Synchronizer and Load Control Unit
- Place of Origin: United States
- Condition Status: Brand New / Factory Original Surplus
- Dimensions: Standard Panel Mount Enclosure (Approx. 144mm x 144mm x 90mm)
- Weight: Approx. 0.9 kg
- Original Region: USA Manufacturing Plant
- Compatibility: Designed for use on one or three-phase generators
- Core Functions: Combines synchronizing for one circuit breaker, load and power factor control, isochronous load sharing, and comprehensive generator protection
📖 Product Overview & Description
The Woodward SPM-D11 Synchronizer (Part 8440-1715) is an advanced digital control unit engineered for one or three-phase generator applications. It integrates multiple critical power management functions into a single device, combining synchronizing capabilities for a single circuit breaker with active load control, power factor regulation, isochronous load sharing, and complete generator protection features.
Designed with robust microprocessor technology, the SPM-D11 ensures high reliability and precision in complex power generation and distribution architectures. Its versatile feature set minimizes external hardware requirements, providing seamless automated synchronization and stable parallel operation for industrial prime movers.
🛠️ Operating Specifications & Usage Methods
Proper installation and correct wiring practices are vital for optimal performance. All voltage sensing inputs (supporting one or three-phase configurations) and control wiring must utilize shielded cables and be physically separated from high-voltage power paths to prevent electromagnetic interference.
During configuration, use the front panel interface or the authorized software tool to set nominal system voltages, frequencies, phase angle tolerances, and protection thresholds. Configure the load sharing, power factor, and breaker control parameters to match the specific operational requirements of the generator set before executing any live tests.
⚡ Startup & Shutdown Sequence
Following a structured startup and shutdown sequence protects the prime mover, generator windings, and switchgear from mechanical stress and electrical transients.
- Startup Sequence: First, inspect all auxiliary wiring, safety interlocks, and circuit breaker mechanisms. Energize the system control power and verify that all voltage and frequency inputs display accurate readings on the unit. Bring the generator up to its rated speed and voltage. Activate the synchronizer and load-sharing modes, letting the unit automatically monitor synchronization conditions and issue the close command to the circuit breaker once all parameters align.
- Shutdown Sequence: Begin by ramping down active power generation through load reduction commands until minimum load is reached. Open the main generator circuit breaker to decouple the unit from the shared electrical busbar. Allow the prime mover to run at a no-load idle state for thermal stabilization cool-down. Issue the stop command to shut down the engine, and finally de-energize the control power supply once the engine has completely stopped.
❓ Frequently Asked Questions (Q&A)
- Q1: What generator phase configurations does the Woodward 8440-1715 support?
- A1: The unit is specifically designed for use on either one-phase or three-phase generators.
- Q2: What core control functions are integrated into the SPM-D11 model?
- A2: It integrates synchronizing for one circuit breaker, active load and power factor control, isochronous load sharing, and comprehensive generator protection features.
- Q3: How does the unit handle parallel generator operation?
- A3: It provides isochronous load sharing and power factor regulation capabilities to ensure even distribution of active and reactive power across parallel-connected generator sets.
