The 8273-140 (Model: 8273-140) is an advanced, full-authority digital speed control unit from Woodward’s 2301E series. Engineered to replace the legacy 8273-101, this module provides the critical intelligence required for digital load sharing and speed regulation in engine and turbine applications. The 8273-140 (Part Number: 8273-140) is specifically designed for 24 VDC systems, offering a modern digital upgrade to traditional analog load-sharing systems while maintaining compatibility with standard Woodward actuators.
This unit functions as a high-speed processor that monitors engine RPM via magnetic pickup and manages the distribution of kilowatt loads between multiple generators operating in parallel. Unlike basic drivers, the 8273-140 (Model: 8273-140) incorporates complex control algorithms for isochronous and droop operation, ensuring that the engine maintains stable frequency despite sudden load fluctuations. It is a vital component for mission-critical power generation, marine propulsion, and oil and gas compressor systems where precise fuel metering and synchronization are required.
The 8273-140 (Model: 8273-140) offers enhanced digital processing for superior governing response.
| Feature | Details |
| Manufacturer | Woodward |
| Model Number | 8273-140 |
| Series | 2301E Digital Control (Replaces 8273-101) |
| Product Type | Full Authority Speed Control Unit |
| Input Power | 18–32 VDC (Nominal 24 VDC) |
| Power Consumption | 20 W Typical |
| Control Signal Input | 4–20 mA, PWM, or Analog Bias |
| Actuator Drive | Proportional current output for Woodward actuators |
| Control Modes | Isochronous, Droop, and Load Sharing |
| Communication | Service port for PC-based configuration |
| Operating Temperature | –40°C to +70°C |
| Protection Features | Reverse polarity, overvoltage, and short-circuit protection |
| Dimensions | 200 $\times$ 150 $\times$ 60 mm |
| Weight | 1.95 kg (4.30 lbs) |
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