Description
Product Datasheet & Technical Parameters
- Brand: WOODWARD
- Model: 8272-169
- Series: GLC (Generator Loading Control) Series
- Product Name: Generator Loading Control Module
- Manufacturing Origin: United States
- Physical Condition: Brand New / Factory Sealed
- Dimensions: Standard Industrial Enclosure Module
- Weight: Approx. 2.0 lbs (0.91 kg)
- Country of Origin: USA
- Power / Input Rating: 18 to 32 VDC Auxiliary Power Supply, Special Application Listing, Compatible with Woodward EG, 2301, 2500, and EPG series controls
Product Overview & Introduction
The WOODWARD 8272-169 is a specialized Generator Loading Control (GLC) unit designed to manage the loading and unloading of AC generators operating in parallel with a utility grid or other generator sets. Distinguished within the GLC series by its specific 18–32 VDC power supply requirement and a unique special application listing, this module ensures smooth, controlled power transitions. It is engineered to integrate seamlessly with other core Woodward control families, including EG, 2301, 2500, and EPG speed control systems, providing reliable base-loading and peak-shaving capabilities.
Operational Specifications & Guidelines
Prior to installation or handling, ensure that all electrical power sources, busbars, and control circuits are completely de-energized and locked out to prevent electrical shock or arc flash hazards. Mount the 8272-169 module securely inside a protective sheet metal panel enclosure, maintaining standard industrial temperature and relative humidity limits. Connect the 18–32 VDC auxiliary power supply, potential transformer (PT) voltage inputs, current transformer (CT) lines, and control wiring interfacing with your Woodward EG, 2301, 2500, or EPG governor systems strictly in accordance with the manufacturer’s wiring schematics. Verify all terminal connections and ensure proper system grounding before restoring power.
Startup & Shutdown Sequencing
To prevent system disturbances, out-of-phase transitions, or control loop instability, operators must strictly follow the defined startup and shutdown procedures.
- Startup Sequence:
- Verify all external wiring, potential inputs, control power connections, and safety interlocks are securely fastened.
- Energize the 18–32 VDC control power supply to the WOODWARD 8272-169 module and perform a complete self-test.
- Start the prime mover and allow it to reach rated nominal speed and thermal stability under governor control (using compatible EG, 2301, 2500, or EPG units).
- Enable the GLC module to monitor system potential and compare generator parameters against local bus conditions.
- Engage automatic loading control, allowing the unit to execute smooth, bumpless soft-loading transitions without voltage or frequency disturbances.
- Shutdown Sequence:
- Gradually initiate soft-unloading via the control module to transfer active electrical load away from the generator set back to the main grid or companion units until minimum baseline load is achieved.
- Open the main generator circuit breaker manually or via system command to isolate the unit electrically from the busbar.
- Initiate the standard prime mover cool-down cycle at idle speed for the required duration.
- Issue the stop command to shut down the engine or turbine completely.
- De-energize the auxiliary control power to the loading control module only after the prime mover has come to a complete standstill.
Frequently Asked Questions (Q&A)
- Q1: What sets the WOODWARD 8272-169 apart from other models in the GLC series?
- A1: It features a specific 18–32 VDC auxiliary power supply requirement and a unique special application listing.
- Q2: Which Woodward governor and control series are compatible with the 8272-169?
- A2: This module is designed to work alongside other Woodward product families, including the EG, 2301, 2500, and EPG series.
- Q3: What is the primary function of this generator loading control unit?
- A3: It manages the smooth loading, unloading, and base-load regulation of generator sets operating in parallel environments.
