
Product Description
Woodward 9905-968 DSLC Digital Synchronizer and Load Control
The Woodward 9905-968 DSLC (Digital Synchronizer and Load Control) delivers precision generator synchronization and load management for industrial power generation systems. Engineered for mission-critical applications requiring seamless paralleling of multiple generators with utility grids or islanded operations.
Technical Specifications
- Model: 9905-968
- Type: Digital Synchronizer & Load Control Module
- Input Voltage Range: 18-32 VDC nominal (24 VDC)
- Frequency Range: 50/60 Hz configurable
- Synchronization Accuracy: ±2 electrical degrees
- Load Sharing Accuracy: ±1% of rated load
- Operating Temperature: -40°C to +70°C
- Communication: RS-485 Modbus RTU protocol
- Protection Rating: IP20 (panel mount)
Key Features & Capabilities
- Automatic synchronization with voltage, frequency, and phase angle matching
- Active and reactive load sharing control for parallel generators
- Soft load transfer and load dump protection
- Reverse power and over/under frequency protection
- Configurable breaker control logic with programmable delays
- Real-time monitoring of voltage, current, power factor, and frequency
- Integrated diagnostics with fault logging and alarm outputs
Application Scenarios
Industrial Facilities: Synchronize backup generators with utility power for seamless transition during outages or peak shaving operations in manufacturing plants, data centers, and hospitals.
Marine & Offshore: Parallel multiple gensets on ships, oil rigs, and offshore platforms for redundant power distribution and optimized fuel efficiency.
Utility & Cogeneration: Integrate distributed generation resources with grid infrastructure, enabling load balancing and demand response capabilities.
Microgrid Systems: Coordinate renewable energy sources with diesel/gas generators in islanded or grid-connected microgrids for stable power delivery.
Common Questions & Answers
Q: Can the 9905-968 synchronize generators with different ratings?
A: Yes, the DSLC supports paralleling generators with varying capacities through proportional load sharing algorithms that distribute load based on each unit's rated output.
Q: What communication protocols are supported?
A: The module features RS-485 Modbus RTU for integration with SCADA systems, PLCs, and building management systems for remote monitoring and control.
Q: Is this compatible with renewable energy sources?
A: Absolutely. The 9905-968 can synchronize with solar inverters, wind turbines, and energy storage systems that provide grid-forming or grid-following capabilities.
Q: What's included in the installation package?
A: The module ships with mounting hardware, terminal block connectors, and comprehensive installation/configuration documentation. CT and PT sensors are sold separately.
Solution Benefits
- Reduces fuel consumption through optimized load distribution
- Minimizes wear on generator components via controlled synchronization
- Enhances system reliability with redundant power paths
- Simplifies commissioning with auto-tuning and setup wizards
- Lowers maintenance costs through predictive diagnostics
Related Products
| Product | Model | Application | Link |
|---|---|---|---|
| Woodward 9905-976 DSLC | 9905-976 | Enhanced synchronizer with expanded I/O | View Product |
| Woodward 9905-377 DSLC | 9905-377 | Compact synchronizer for smaller gensets | View Product |
| Woodward SPM-A Synchronizer | 9907-038 | Analog synchronizer module | View Product |
Warranty & Support
All Woodward 9905-968 modules include a comprehensive 12-month warranty covering manufacturing defects and component failures. Technical support and application engineering assistance available throughout product lifecycle.
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