Product Description
The 9905-096 Automatic Generator Loading Control module manufactured by Woodward is designed to manage gradual load transfer in generator paralleling and load-sharing systems. This controller regulates the rate at which generator load is applied or removed, preventing sudden power fluctuations that could stress engines, alternators, or electrical networks.
Built with an industrial-grade metal chassis, the 9905-096 supports wide AC input voltage ranges and operates reliably in harsh environments. It integrates ramp control functionality that enables smooth generator synchronization and controlled load transitions when connecting generators to a shared bus or utility supply.
The unit is commonly deployed in power generation systems where precise load management is critical, including standby generator plants, marine power systems, and industrial cogeneration facilities.
Key Functional Characteristics
The 9905-096 module is engineered to ensure controlled generator load ramping during startup, synchronization, or shutdown events. Adjustable ramp timing allows operators to fine-tune load transfer speed to match system stability requirements. This prevents mechanical shock to the prime mover and electrical disturbances within the distribution system.
The controller also supports integration with Woodward load sharing and speed control platforms, enabling coordinated generator operation within multi-unit power plants.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Woodward |
| Model | 9905-096 |
| Product Type | Automatic Generator Loading Control (AGLC) |
| Input Voltage | 170–264 VAC |
| Frequency | 50 / 60 Hz |
| Power Consumption | Approximately 5 VA |
| Operating Temperature | –40 °C to +85 °C |
| Storage Temperature | –55 °C to +105 °C |
| Enclosure | Industrial metal chassis |
| Dimensions | 216 × 191 × 51 mm |
| Weight | 2.35 lb |
| Shock Resistance | Up to 60 G |
| Ramp Adjustment Range | 5 seconds to 5 minutes |
Operational Advantages
The 9905-096 controller enables precise load ramping when generators are connected to parallel power systems. Adjustable ramp settings allow operators to match the load transfer rate to generator capacity and system stability requirements.
Wide AC voltage compatibility allows the module to be installed in both 115 V and 230 V supply environments commonly used in generator control panels. Its rugged mechanical design supports deployment in environments with high vibration or temperature variation.
These characteristics make the module suitable for long-term service in mission-critical power control systems.
Typical Application Scenarios
The 9905-096 AGLC module is frequently used in multi-generator power systems where load sharing and synchronization are required. Industrial facilities rely on it to introduce generators into service gradually without disturbing plant power quality.
Marine vessels and offshore installations also benefit from its ramp control capability, ensuring stable power transitions when generators are brought online or removed from service.
In utility-parallel power plants, the controller helps regulate the transition between utility power and generator output, minimizing disturbances to connected equipment.
FAQ
What is the primary purpose of the 9905-096 module? The controller manages gradual load transfer between generators or between a generator and the utility grid, preventing sudden load steps.
Can the ramp time be adjusted? Yes. Operators can configure ramp duration from approximately 5 seconds up to 5 minutes depending on system requirements.
Is the unit suitable for harsh industrial environments? Yes. The metal enclosure, wide temperature tolerance, and high shock resistance allow reliable operation in demanding installations.
Does the module require a specific generator control system? It is commonly used with Woodward load sharing and speed control systems, though integration depends on the generator control architecture.
