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Woodward 9905-003
Detailed Product Introduction: This is a high-performance analog automatic synchronization unit independently developed by Woodward. It is professionally designed for generator set parallel grid connection systems. It accurately detects the frequency difference, phase difference and voltage difference between the generator side and the busbar side in real time, automatically adjusts the prime mover speed to complete precise synchronization matching, and cooperates with Woodward 2301, 2301A, EPG and other governor systems to realize stable load sharing operation after parallel connection. It is a core supporting control component for isolated power grid and small parallel power stations.
Detailed content
Full Technical Specifications:
- Rated Power Supply: 115VAC / 230VAC, 50/60Hz universal input
- Rated Power Consumption: 10VA maximum
- Detectable Frequency Range: 45Hz ~ 65Hz
- Phase Synchronization Accuracy: ≤±5 electrical degrees
- Allowable Frequency Difference Before Closing: ≤0.3Hz
- Speed Adjustment Output Signal: Isolated analog control signal
- Mechanical Dimensions: 191mm × 25mm × 235mm
- Net Weight: 0.3kg
- Operating Ambient Temperature: -20℃ to +70℃
- Installation Method: Standard panel DIN rail & fixed screw mounting
- Anti-interference Performance: Fully isolated circuit, meets industrial EMC standard
Comprehensive Function Features: Automatic frequency tracking and phase alignment; automatic voltage difference identification and locking protection; coordinated load sharing control with governor system; adjustable dynamic response parameters for different engine inertia; compact industrial enclosure design; stable anti-interference analog circuit; complete closing interlock logic; support single unit to busbar parallel operation.
Detailed Application Scenarios: Medium and large diesel generator sets; natural gas engine generator units; marine ship auxiliary power systems; distributed independent power stations; emergency backup power stations; small industrial micro power grids; engine prime mover parallel control systems.
