Description
Woodward’s 2301A series load sharing and speed control model 8272-611 is engineered to provide precise speed and load control for diesel, gas, and steam turbines or engines. Featuring a speed trim of 0 to 100 Ohms for a 0 to 10% speed change and speed selection through open terminals, this electronic control manages prime mover speed and coordinates load sharing across multiple parallel-running generator sets with high reliability.
📊 Technical Specifications & Datasheet Parameters
• Brand: Woodward
• Model: 8272-611
• Series: 2301A
• Product Name: Load Sharing and Speed Control
• Place of Origin: United States
• Operational Status: Active / Industrial Grade
• Dimensions: Approximately 200 mm × 150 mm × 80 mm (7.9 in × 5.9 in × 3.1 in)
• Weight: Approximately 1.5 kg (3.3 lbs)
• Country of Origin: United States
• Power Consumption / Power: 24 V DC control power supply (Max 25 W)
⚙️ Operation Standards & Usage Methods
Installation must strictly adhere to the manufacturer’s technical manual and be executed by qualified control system technicians. Mount the unit securely inside a protective NEMA/IP-rated industrial cabinet to shield internal circuitry from ambient moisture, corrosive elements, and high vibration levels. All control wiring, actuator connections, magnetic pickup (MPU) speed sensors, and trim potentiometer leads must be shielded and properly grounded to eliminate electromagnetic interference (EMI). Verify all switch settings, gain adjustments, and terminal configurations before powering on the control loop.
🔌 Power-Up & Power-Down Sequence
Power-Up Sequence:
- Inspect all external wiring, actuator links, speed sensing probes, and terminal block connections to ensure secure termination.
- Apply the 24 V DC control power supply to the unit.
- Monitor internal indicator LEDs to confirm successful startup and self-diagnostics.
- Check the speed trim and terminal selection circuits to ensure proper response before enabling prime mover fuel flow.
Power-Down Sequence:
- Unload the prime mover safely and bring the engine or turbine to a complete stop.
- Disengage any external actuator control signals and lock out fuel or steam delivery systems.
- Remove the 24 V DC control power supply from the 2301A unit.
- Allow internal components to de-energize completely before performing wiring or maintenance tasks.
❓ Frequently Asked Questions (Q&A)
Q: How does the speed trim function operate on the 8272-611?
A: The unit utilizes a 0 to 100 Ohm resistance input range to achieve a 0 to 10% speed change, allowing fine operator adjustments to the prime mover’s operating speed during synchronization or load management.
Q: What is the purpose of speed selection through open terminals?
A: Speed selection via open or closed terminal states allows external control switches or automated PLC logic to switch between distinct operating speeds or control modes seamlessly.
Q: Can this controller manage multiple generators in parallel?
A: Yes, the 2301A series is specifically designed to provide precise load sharing capabilities when interconnected with other compatible governing systems on isolated or utility-parallel power grids.
🚀 Recommended Woodward Models
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