







Product Description
Woodward 9907-028 SPM-A Synchronizer
- Manufacturer: Woodward
- Model/Part Number: 9907-028
- Description: SPM-A Synchronizer, Non-Voltage Matching, 120/208/240 VAC, for Generator Paralleling
Overview
- The Woodward 9907-028 is an SPM-A (Synchronizer and Phase Matching) module designed for synchronizing generators with a bus or utility grid in power generation systems. This non-voltage matching variant ensures precise speed and phase alignment for safe paralleling of generators, suitable for industrial, marine, and utility applications.
Technical Specifications
Specification | Details |
---|---|
Model | 9907-028 |
Series | SPM-A |
Type | Synchronizer (Non-Voltage Matching) |
Power Supply | 120/208/240 VAC (50/60 Hz) |
Inputs | Generator and bus voltage inputs |
Outputs | Speed bias output (±0.75 VDC or ±3 VDC, model-dependent) |
Phase Matching Accuracy | ±1° electrical |
Frequency Range | 40–70 Hz |
Synchronization Time | Typically <10 seconds (system-dependent) |
Control Compatibility | Woodward 2301, EPG, 701, 721 controls |
Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
Storage Temperature | -55°C to +105°C (-67°F to +221°F) |
Relative Humidity | 5% to 95%, non-condensing |
Vibration | 4 G, 5–500 Hz |
Shock | 20 G peak |
Protection Rating | Not specified (designed for control cabinet use) |
Dimensions | Approximately 254 mm x 178 mm x 76 mm (10 in x 7 in x 3 in) |
Weight | Approximately 1.5 kg (3.3 lbs) |
Mounting | Panel or DIN-rail mount |
Certifications | CE, UL/cUL (estimated for industrial environments) |
System Compatibility | Woodward governors, diesel/gas engines, gas/steam turbines |