Description
Woodward 9907-028 SPM-A
Technical Specifications
- Part Number: 9907-028
- Model Designation: SPM-A
- Type: Microprocessor Synchronizing Module
Functional Features
- Automatic Matching: Provides automatic frequency, phase, and voltage matching via analog or discrete output bias signals.
- Synch-Check: Prevents out-of-phase breaker closing to protect equipment.
- Configuration Flexibility: Can be configured via front-panel HMI or software.
Application Scenarios
Ideal for power generation facilities requiring precise synchronization of AC generators with grid or busbar systems.
Performance Parameters
- Voltage Detection Accuracy: Class I True RMS voltage detection.
- Synchronization Modes: Phase matching via voltage matching or slip frequency synchronization.
Material Composition
Housed in a robust industrial-grade enclosure designed to withstand harsh power plant environments, featuring high-quality printed circuit boards with conformal coating.
Structural Characteristics
- Form Factor: Compact modular design for seamless integration into existing control panels.
- Front Panel: Equipped with status LEDs and a built-in synchronizing oscilloscope for visual confirmation.
Working Principle
Continuously monitors the generator and bus voltages, calculates the slip frequency and phase angle difference, and outputs precise bias signals to align the generator before issuing a close command.
Installation Requirements
A circuit breaker must be provided near the unit, easily accessible to the operator, and clearly labeled as the isolating switch.
Precautions for Use
Strictly observe electrostatic discharge (ESD) precautions during handling. Verify the circuit breaker time compensation settings to account for mechanical closing time.
