Woodward 9905-096 Automatic Generator Load Controller

Description

Woodward 9905-096 Automatic Generator Load Controller

Product Dimensions：

The Woodward 9905-096 is an Automatic Generator Loading Control (AGLC) unit from the AGLC series. It is an auxiliary control module designed to work in tandem with Woodward load sharing and speed control systems (such as the 2301A series) to manage the smooth ramp-up and ramp-down of generator loads.

Product Detailed Description

The 9905-096 AGLC provides automated loading and unloading for engine-generator sets. It ensures a “bumpless” transfer of power when a generator is being paralleled to a bus or separated from a load-sharing system. The unit activates when the generator’s circuit breaker auxiliary contacts close, comparing the potential on the load-sharing lines and managing the ramp rates to maintain system stability.

Technical Parameters

Product Advantages

• Smooth Transitions: Prevents sudden mechanical or electrical shocks to the engine and the grid by using adjustable electronic ramps for loading and unloading.
• Bumpless Transfer: Automatically balances the oncoming generator’s load with the existing system potential for seamless integration.
• Adjustable Base Load: Includes a “Base Load” setting that allows the operator to define a fixed power output level, which the unit will maintain by automatically adjusting the governor.
• High Durability: Built with a rugged metal chassis and high shock resistance (60 Gs), making it ideal for harsh industrial and marine environments.
• Ease of Use: Features an intuitive interface with front-accessible potentiometers for quick adjustments to ramp times and load settings.

Important Considerations & Precautions

• Wiring Gauge: Power supply wiring must be at least 20 AWG and properly insulated to ensure reliable operation.
• Input Source: While the unit can draw power from the local bus, ensure the voltage remains within the tolerable range (170–264V for the 220V setting) to avoid control transients.
• Safety Redundancy: As with all prime mover controls, an independent overspeed protection device should be installed to protect against loss of engine control.
• Jumper Selection: Ensure the correct jumpers (e.g., 1606-899) and internal settings are configured to match the specific voltage and load-sharing line requirements of your system.

Product Applications

The Woodward 9905-096 is utilized in multi-generator power systems where automated load management is required:

• Power Plants: Automated management of peak-shaving units and base-load generators.
• Marine Vessels: Synchronizing and load-ramping for main propulsion or auxiliary shipboard generators.
• Emergency Standby Power: Managing the transition of critical loads in hospitals or data centers when switching between utility and backup power.
• Industrial Cogeneration: Controlling the import/export of power when paralleling a factory’s internal generation with the public utility grid.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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