Description
Product Description
The WOODWARD 8440-1706 is a microprocessor-based SPM‑D11 load‑share synchronizer module for industrial generator sets, enabling precise synchronization and load management between generators and utility grids. It supports 12/24 VDC power (9.5–32 VDC), 2‑phase generator/busbar voltage (100 VAC) and 1‑phase current (5 A) measurement, and offers true RMS power calculation, soft unloading, and power factor control. The WOODWARD 8440-1706 features dual‑line LCD for real‑time monitoring, multi‑level password protection, and menu‑driven configuration via front panel or PC. It operates from -20°C to +70°C, has IP42 protection, and is CE, UL, and CSA certified, suitable for power generation, marine, oil & gas, and industrial backup power. The WOODWARD 8440-1706 integrates with Woodward speed controls and AVRs, providing isochronous load sharing, phase/slip frequency synchronization, and circuit breaker control for reliable parallel operation.
Product Parameters
| Parameter | Specification |
|---|---|
| Model | WOODWARD 8440-1706 |
| Type | SPM‑D11 Load‑Share Synchronizer Module |
| Brand | WOODWARD |
| Power Supply | 12/24 VDC (9.5–32 VDC) |
| Power Dissipation | 10 W |
| Voltage Input | 2‑phase gen./busbar, 100 VAC |
| Current Input | 1‑phase gen., 5 A |
| Control Modes | Synchronization, load sharing, power factor control |
| User Interface | Dual‑line LCD, front‑panel buttons |
| Configuration | Menu‑driven (panel/PC) |
| Operating Temp | -20°C to +70°C |
| Humidity | 95% non‑condensing |
| Dimensions | 144 mm×72 mm×122 mm |
| Weight | 0.8 kg |
| Protection | IP42 (IP54 sealed) |
| Certifications | CE, UL, CSA |
Advantages and Features
- Precise Synchronization: The WOODWARD 8440-1706 supports phase matching or slip frequency synchronization, reducing grid‑connection transients by 30% vs. basic synchronizers.
- Advanced Load Sharing: True RMS power calculation minimizes harmonic interference, while soft unloading and power factor setpoints optimize generator efficiency by 15%.
- Flexible Configuration: Multi‑level password protection and dual‑line LCD enable on‑site parameter adjustment without specialized tools.
- Wide Environmental Range: -20°C to +70°C operation and IP42 protection suit harsh industrial/marine environments.
- Seamless Integration: Native compatibility with Woodward speed controls and AVRs eliminates adapter needs, cutting installation time by 40%.
Application Cases in Application Fields
- Diesel Generator Grid Connection: The WOODWARD 8440-1706 synchronizes three 1.2 MW generators in a hospital backup system, reducing connection transients and ensuring stable power during outages.
- Offshore Platform Power Management: It manages four 2 MW gas generators, balancing load and enabling soft unloading during maintenance, reducing downtime by 20%.
- Combined Cycle Power Plant: The WOODWARD 8440-1706 synchronizes two 50 MW gas turbines with the grid, improving power factor and reducing fuel consumption by 8%.
- Marine Vessel Propulsion: It coordinates three 3 MW diesel generators, ensuring stable power for propulsion and on‑board systems in dynamic sea conditions.
Comparisons with Competing Products
| Feature | WOODWARD 8440-1706 | Competitor A (Emerson Ovation Sync Module) | Competitor B (Siemens S7‑1500 Sync Module) |
|---|---|---|---|
| Synchronization | Phase/slip frequency | Phase only | Phase only |
| Load Sharing | Isochronous, soft unload | Basic | Basic |
| Power Calculation | True RMS | Average | Average |
| UI | Dual‑line LCD, panel config | HMI‑dependent | HMI‑dependent |
| Power Input | 12/24 VDC | 24 VDC only | 24 VDC only |
| Protection | IP42 (IP54 sealed) | IP20 | IP20 |
| Price Range | $1,800–$2,500 | $2,200–$3,000 | $2,000–$2,800 |
Selection Suggestions and Precautions
- Selection Suggestions
- Choose the WOODWARD 8440-1706 for multi‑generator systems needing precise synchronization and load sharing with soft unloading/power factor control.
- Pair with WOODWARD speed controls/AVRs for native integration and minimal setup time.
- Use in marine/harsh environments with IP54 sealing to enhance durability.
- Precautions
- Ensure power supply is within 9.5–32 VDC to prevent damage to the WOODWARD 8440-1706.
- Calibrate voltage/current inputs annually to maintain synchronization accuracy.
- Use password protection to prevent unauthorized parameter changes.
- Verify IP rating and temperature range for outdoor/marine installations.
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