Product Overview
The Woodward 9907‑838 Load Sharing Module is a specialized power control component designed to optimize electrical load distribution across multiple generator sets operating in parallel. As part of Woodward’s power system solutions, this module ensures that loads are shared proportionally and efficiently between synchronized generators, helping maintain system stability, reduce wear on individual units, and improve fuel economy.
Ideal for industrial power plants, marine generator systems, and hybrid energy networks, the 9907‑838 combines reliable digital load sharing logic with rugged industrial construction. This makes it a dependable choice when coordination between multiple power sources is required to ensure smooth, balanced distribution of electrical demand.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Woodward |
| Model | 9907‑838 |
| Product Type | Load Sharing Module |
| Load Sharing Modes | Proportional, Isochronous |
| Electrical Interface | Signal inputs/outputs for share control |
| Communication | CANbus / Modbus (system dependent) |
| Supply Voltage | 12 V / 24 V DC |
| Operating Voltage Range | 8 – 36 V DC |
| Mounting Method | DIN‑rail or panel mount |
| Operating Temperature | −20 °C to +70 °C |
| Storage Temperature | −40 °C to +85 °C |
| Dimensions | Approx. 140 mm × 100 mm × 50 mm |
| Weight | Approx. 0.38 kg |
| Housing | Rugged industrial enclosure |
Application Scenarios
The 9907‑838 Load Sharing Module is widely used where coordinated generator operation and balanced load distribution are essential.
Power Generation Facilities
Ensures balanced electrical output across generator banks feeding industrial or commercial grids.
Industrial Combined Power Systems
Coordinates load sharing among multiple backup generators in manufacturing environments.
Marine and Offshore Power Networks
Distributes load across shipboard generators to support propulsion and auxiliary systems.
Microgrid and Hybrid Energy Systems
Balances load among conventional generators, renewable sources, and storage units in hybrid installations.
Key Advantages
Proportional Load Sharing
Ensures fair and efficient division of electrical load among multiple gensets based on capacity.
Isochronous Operation
Supports isochronous mode for consistent frequency and load balance even under varying demand.
Flexible Integration
Interfaces with Woodward controllers and synchronization systems through standard communication protocols.
Improved System Efficiency
Balanced generator operation reduces fuel consumption and mechanical stress on individual units.
Industrial Reliability
Built with rugged housing and wide temperature tolerance for dependable performance in demanding environments.
Technical FAQs
1. What is the primary purpose of the 9907‑838 module?
It manages load sharing between generator sets running in parallel to balance power output.
2. What load sharing modes are supported?
Proportional and isochronous load sharing modes are supported.
3. What communication protocols are used?
Communication commonly uses CANbus and Modbus as part of the control system architecture.
4. What supply voltage does the module require?
It operates with 12 V or 24 V DC power supply.
5. What voltage range can the module handle?
The operating range is 8 – 36 V DC.
6. Where is this module typically installed?
In control cabinets, generator panels, or automation racks using DIN‑rail or panel mounting.
7. Can it improve fuel efficiency?
Yes, by balancing load across generators, it improves overall system efficiency and reduces fuel usage.
8. Is it suitable for marine environments?
Yes, its rugged design and broad operating range make it suitable for marine applications.
9. What does isochronous mode provide?
Isochronous sharing maintains equal load distribution and frequency stability across generators.
10. How does it interface with controllers?
It interfaces via standard control signals and communication protocols with Woodward generator controllers.
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