Description
WOODWARD
P/N: 9905-031
HIGH VOLTAGE 2301A LOAD SHARING & SPEED CONTROL MODULE
REV: M
The Woodward 9905-031 Rev M is a high voltage variant of the established 2301A Load Sharing & Speed Control Module, a core component within marine generator control and power management systems. Designed to regulate engine speed and balance electrical load across parallel-running generators, this module plays a critical role in maintaining stable onboard power distribution. As part of a Marine Control System, it enables coordinated generator operation, protecting against load swings, frequency deviations, and uneven power sharing that can disrupt vessel electrical networks. Its reliable performance is essential for vessels operating generators in parallel, where precise load control directly affects propulsion, hotel loads, and critical safety systems.
Key Features
✓ Functions as a combined load sharing and speed control module, coordinating generator output to maintain stable frequency and balanced load distribution across parallel machines.
✓ High voltage configuration as indicated in the part designation; exact voltage ratings and input/output specifications are subject to confirmation against the original Woodward technical documentation for this revision.
✓ Compatible with Woodward 2301A-series control architectures; system integration with specific governors, actuators, or control panels should be verified against the vessel’s existing configuration.
✓ Designed for panel or enclosure mounting in the engine control room or generator switchboard area; installation environment and mounting requirements are typical of industrial-grade marine control modules.
✓ Revision M designation indicates a specific engineering revision level; confirming the correct revision is recommended when sourcing a replacement to ensure functional and wiring compatibility with the installed system.
Marine Applications
✓ Merchant vessels operating multiple diesel generators in parallel, requiring continuous load sharing and frequency stability across the main switchboard.
✓ Offshore support vessels and platform supply vessels where reliable power management is essential for dynamic positioning and deck machinery loads.
✓ Passenger ferries and ro-ro vessels with high hotel load demands, where generator load balancing directly affects onboard comfort and operational safety.
✓ Fishing vessels and research ships with variable power demands, benefiting from automated speed and load control to optimise fuel consumption.
✓ Naval auxiliaries and government vessels where generator control system integrity is critical to mission readiness and electrical plant reliability.
Why Marine Engineers Choose
The Woodward 2301A platform has a long-established presence in marine generator control, and the 9905-031 module is a recognised component within that ecosystem. Engineers specify it for its dependable load sharing logic and compatibility with Woodward governor systems, making it a practical choice when replacing or restoring generator control functionality on vessels where this architecture is already in service.
Ideal For
Merchant ships, offshore vessels, passenger ferries, fishing vessels, research ships, and any commercial or government vessel operating Woodward 2301A-based generator control and power management systems.
Technical Support
Technical support is available for the Woodward 9905-031 module, covering onboard installation guidance, system integration, and remote troubleshooting assistance. Support extends to repair assessment and advice on integrating the module within existing marine generator control arrangements.
