The WOODWARD 2301D Digital Load Sharing & Speed Control 8273-140 Rev C is a sophisticated microprocessor-based control unit designed to manage the speed and load of diesel or gas engines and steam or gas turbines. As a digital successor to the classic analog 2301A series, the 2301D offers enhanced flexibility, precision, and communication capabilities for complex power generation and mechanical drive systems.

 

Product Overview

The 8273-140 model provides integrated speed control and load sharing in a single, compact package. It is engineered for applications where multiple generators operate in parallel, either with each other or with a utility bus. The “D” designation signifies its digital architecture, allowing for precise software-based configuration and eliminating the drift associated with aging analog components.

Technical Specifications (Datasheet)

 

Key Technical Features

• Isochronous & Droop Modes: Supports both isochronous load sharing for standalone grids and droop operation for parallel utility connections.
• Soft Loading: Features integrated ramp functions for smooth loading and unloading of the prime mover, reducing mechanical stress.
• Digital Configuration: Replaces manual potentiometers with software-based tuning, allowing for saved configurations and easier replication across multiple units.
• Automatic Generator Power Sensing: Includes internal potential and current transformer (PT/CT) inputs for 3-phase power sensing and kilowatt (kW) load control.

 

Country of Origin

Country of Origin: USA

 

Primary Application Fields

The Woodward 2301D 8273-140 is a standard choice for:

• Generator Sets: Parallel operation in data centers, hospitals, and remote power plants.
• Marine Vessels: Managing main propulsion and auxiliary power synchronization.
• Pump & Compressor Drives: Maintaining constant speed under varying process loads.
• Industrial Co-generation: Interfacing turbines with the local power grid.

 

Operating Instructions

1. Mounting: Install the unit in a control cabinet protected from high-voltage EMI and excessive vibration.
2. Wiring: Connect the 3-phase voltage and current inputs according to the Rev C wiring diagram to ensure accurate load sensing.
3. PC Connection: Use a standard RS-232 cable to connect to a PC running Woodward’s Watch Window software for initial setup.
4. Parameter Tuning: Adjust the Proportional, Integral, and Derivative (PID) settings while the engine is running to achieve stable speed control.
5. Load Balance: Ensure the load sharing lines are properly daisy-chained between all 2301D units in the lineup for balanced kW distribution.