🔵 WOODWARD 9907-838 — Load Balancing Module Rev. New
Industrial Generator Load Sharing and Balancing Controller
The 9907-838 Load Balancing Module is a high-precision controller designed to manage power distribution among multiple generator sets operating in parallel. By continuously monitoring real-time load conditions, it ensures equitable sharing across all connected units, optimizing system efficiency, and minimizing mechanical and electrical stress on individual engines.
This module integrates seamlessly with Woodward engine controllers, digital reference units, and synchronizer modules, enabling precise control of active and reactive power distribution. Its robust design supports operation in harsh industrial environments with high vibration, temperature extremes, and electrical noise.
📑 Technical Parameters (Datasheet-Style Table)
| Parameter | Specification |
|---|---|
| Model | Load Balancing Module |
| Part Number | 9907-838 Rev. New |
| Module Type | Load sharing and balancing for parallel generators |
| Input Voltage | 18–32 VDC |
| Load Measurement | Monitors active and reactive load of connected generators |
| Load Sharing Accuracy | ±1% of rated load |
| Control Interface | Analog and digital I/O compatible with Woodward controllers |
| Communication | Optional serial interface for diagnostics and system monitoring |
| Operating Temperature | –40 °C to +85 °C |
| Storage Temperature | –55 °C to +105 °C |
| Mounting | Panel or enclosure mount |
| Environmental Rating | Industrial-grade, vibration and EMI resistant |
| Protection | Overload detection, fault signaling, automatic corrective action |
âš™ Functional Features
🟩 Dynamic Load Balancing
Continuously adjusts generator outputs to ensure proportional load distribution. Minimizes overloading of any single unit and optimizes fuel efficiency across the system.
🟩 Integration with Synchronization Modules
Works in conjunction with synchronizer and governor modules to maintain phase alignment and stable frequency while sharing load between units.
🟩 Fault Monitoring & Protection
Detects overload, loss-of-signal, and abnormal generator performance. Provides alarm outputs and corrective commands to protect both generators and connected loads.
🟩 Flexible System Compatibility
Supports analog and digital interfaces for integration with Woodward 723 Plus controllers, 2301A speed control modules, PM motors, and supervisory systems for full operational oversight.
🛠Installation & Operation Notes
- Install in a vibration-isolated cabinet with sufficient airflow.
- Ensure all sensing connections are properly shielded to minimize electrical interference.
- Calibrate load sharing and proportional output during commissioning to match connected generator capacities.
- Periodically inspect wiring and interface connections for wear, corrosion, or looseness.
For technical support and authorized spare parts, consult distributors such as:
🔗 https://www.dcsplcsystem.com/
🔗 https://www.dcsplcsystem.com/woodward
📦 Recommended Similar Products
| Model | Description | Function | Application Focus |
|---|---|---|---|
| 9907-173 Load Sharing Module Rev B | Load distribution controller | Balances load among parallel generators | Multi-generator systems |
| 9907-028 SPM-A Synchronizer Module Rev E | Generator synchronization module | Phase and frequency alignment | Industrial and standby generators |
| 8272-683 Digital Reference Unit | Digital speed reference module | Provides precise speed and load setpoints | Diesel and gas engines |
| 9907-014 Forward Acting Speed Control 2301A Rev J | Engine speed controller | Forward-acting speed regulation | Generator sets and prime movers |
| 9906-620 723 Plus Digital Control | Digital engine and generator controller | Speed, load, and actuator management | Industrial turbines and engines |
E-mail:dcsplcsales@gmail.com
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Phone:+86 13365909307