Description
WOODWARD SPM-D11 8440-1706B Digital Synchronization & Load Controller
1. Product Description
The WOODWARD SPM-D11 8440-1706B is a high-performance digital controller designed for single- and three-phase alternators driven by diesel or gas engines. As part of Woodward’s synchronization product line, it integrates advanced algorithms to ensure seamless grid synchronization, load sharing, and power factor optimization. Key features include dual synchronization modes (phase matching and slip frequency), configurable I/O interfaces, and comprehensive generator protection (e.g., over/under-voltage, reverse power). With backward compatibility with legacy Woodward systems, the 8440-1706B supports both standalone and paralleled generator operations, making it ideal for industrial power generation, oil & gas, and microgrid applications.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Input Voltage | 12 VDC or 24 VDC (±15%) |
| Synchronization Modes | Phase matching, slip frequency |
| Control Targets | Single circuit breaker, generator/bus voltage sensing |
| I/O Interfaces | 6 digital inputs, 4 digital outputs, 2 analog inputs (0–10 VDC) |
| Display | 2-line LCD with multilingual support (English/German) |
| Protection Functions | Over/under-voltage, over/under-frequency, reverse power, overload |
| Communication | Optional Modbus RTU (via 8440-1706B-MB variant) |
| Enclosure Rating | IP20 (indoor use) |
| Certifications | CE, UL/cUL |
3. Advantages and Features
- Flexible Synchronization: Supports both phase matching (≤1° phase error) and slip frequency modes for reliable grid connection.
- Load Management: Real-time adjustment of active/reactive power ensures balanced load sharing across parallel generators.
- Generator Protection: Meets ANSI/IEEE standards with configurable trip thresholds and time delays.
- Configurable I/O: Programmable digital/analog inputs/outputs for integration with external systems (e.g., HMIs, SCADA).
- User-Friendly Interface: Intuitive LCD display with parameter adjustment via front-panel keys.
4. Application Areas and Case Studies
- Power Generation: Enables parallel operation of multiple generators in industrial plants.
- Microgrids: Stabilizes frequency and voltage in islanded power systems.
- Oil & Gas: Controls generator sets in remote drilling sites.
Case Study:
A European manufacturing facility reduced generator downtime by 25% using the 8440-1706B to automate synchronization and load balancing, improving energy efficiency by 12%.
A European manufacturing facility reduced generator downtime by 25% using the 8440-1706B to automate synchronization and load balancing, improving energy efficiency by 12%.
5. Competitor Comparison
Compared to similar controllers:
- Dual Synchronization Modes: Offers both phase matching and slip frequency options, expanding application flexibility.
- Wide Voltage Range: Operates at 12/24 VDC, reducing dependency on voltage regulators.
- Cost-Effective Protection: Integrates generator protection in a single module, minimizing hardware costs.
6. Selection Recommendations
- Voltage Compatibility: Choose 12 VDC or 24 VDC models based on system requirements.
- Communication Needs: Opt for the 8440-1706B-MB variant with Modbus RTU for SCADA integration.
- Load Complexity: Pair with Woodward’s EPG series governors for advanced load-sharing scenarios.
7. Precautions
- Voltage Sensing: Ensure generator/bus voltage inputs are correctly wired to terminals L1/L2.
- Parameter Calibration: Use Woodward’s EGCP-3 software for initial setup and periodic reconfiguration.
- Ambient Conditions: Install in a dry, well-ventilated location away from direct sunlight.
- Maintenance: Regularly inspect relay contacts and verify LCD display functionality.
声明
山西鑫业达国际贸易有限公司 is your trusted partner for WOODWARD SPM-D11 8440-1706B and synchronization solutions. Visit www.xydcontrol.com or contact us for sales and technical support.
山西鑫业达国际贸易有限公司 is your trusted partner for WOODWARD SPM-D11 8440-1706B and synchronization solutions. Visit www.xydcontrol.com or contact us for sales and technical support.
