Description
Woodward SPM-D108440-1433D
Technical Specifications
- Part Number: 8440-1433D.
- Function: Automatic Synchronization and Synch-Check.
- Voltage Input: Configurable for various generator and bus voltages.
- Output: Relay outputs for breaker control and analog outputs for speed/voltage bias.
Functional Features
- Precision Matching: Adjusts generator speed and voltage to perfectly match the bus.
- Safety Interlocks: Prevents out-of-phase closing to protect generator shafts and windings.
- Self-Diagnostics: Continuous internal monitoring to ensure system readiness.
Application Scenarios
Deployed in standby power systems, prime power plants, and microgrids where reliable synchronization is critical.
Performance Parameters
- Phase Angle Accuracy: Extremely tight tolerance for smooth breaker closure.
- Reliability: High Mean Time Between Failures (MTBF).
Material Composition
Conformal-coated electronics for protection against moisture, dust, and corrosive gases.
Structural Characteristics
- Mounting: Standard module footprint with secure terminal connections.
- HMI: Local status indicators for easy troubleshooting.
Working Principle
Receives voltage and frequency signals from both the generator and the bus. It executes a control algorithm to ramp the generator speed and adjust excitation until the phase coincidence point is reached, then triggers the breaker.
Installation Requirements
Ensure voltage transformer (VT) ratios are correctly configured in the module. Ground the module chassis properly to maintain signal integrity.
Precautions for Use
Perform primary injection testing to validate synchronization logic before placing the generator online.
