The Woodward 9905-003 provides essential load sharing and synchronization for generator sets. This SPM-A series module ensures stable parallel operation of multiple engines. Consequently, it maintains precise frequency and power distribution across the system. The unit operates on a flexible 115/230V AC power supply with low energy consumption.
Core Functionality for Power Generation
This controller manages both speed regulation and load sharing in parallel genset applications. It compares generator outputs and adjusts fuel or throttle signals accordingly. Furthermore, the module synchronizes generator frequency and phase before closing circuit breakers. This precise control prevents damaging inrush currents during paralleling operations.
Electrical Specifications and Power Design
The 9905-003 accepts a wide input voltage range of either 115V or 230V AC. Its power consumption remains low at approximately 10 Watts during normal operation. Additionally, the module features robust protection against typical power line transients and noise. This design ensures reliable performance in demanding power generation environments.
Detailed Technical Specifications
Below are the complete technical parameters for the Woodward 9905-003 control module.
| Parameter | Specification |
|---|---|
| Manufacturer | Woodward |
| Product Model | 9905-003 |
| Product Series | SPM-A |
| Device Type | Load Sharing & Speed Controller / Synchronizer |
| Primary Function | Generator Load Sharing & Speed Control |
| Input Voltage | 115/230 V AC (Dual Voltage) |
| Power Consumption | 10 W (Approximate) |
| Control Method | Isochronous Speed Control, Droop Load Sharing |
| Application | Parallel Generator Set Operation |
| Typical Output | Adjustable DC Signal to Actuators/Governors |
| Operating Temp Range | Standard Industrial (Consult datasheet) |
| Mounting | Panel or DIN Rail (Configuration dependent) |
| Dimensions (Approx.) | Refer to official Woodward SPM-A manual |
| Weight (Approx.) | Standard module weight (Consult datasheet) |
| Compliance | Designed to meet industrial EMC standards |
Integration and System Benefits
The module connects directly to magnetic pickups or PTs for speed sensing. It then outputs precise control signals to electronic governors or actuator drivers. Moreover, the 9905-003 simplifies the process of bringing generators online in parallel. This capability maximizes power plant efficiency and provides seamless backup power transitions.
Key Features for Reliable Operation
The SPM-A design offers stable operation even with varying engine characteristics. Its load sharing function proportionally distributes kW load based on generator ratings. The synchronizer function also minimizes mechanical stress during generator connection. Therefore, this Woodward controller extends equipment life and reduces maintenance costs.
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 108 × 70 × 108 mm |
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