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The 8273-140 is a precision speed control and monitoring module developed by Woodward, designed for governing and protecting industrial prime movers such as turbines and engines. This module functions as a...
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The 8273-140 is a precision speed control and monitoring module developed by Woodward, designed for governing and protecting industrial prime movers such as turbines and engines. This module functions as a high-resolution interface between speed sensing devices and fuel control systems, enabling stable speed regulation under fluctuating mechanical loads.
The 8273-140 provides rapid frequency detection and responsive control adjustments to help prevent overspeed events and reduce mechanical stress on rotating equipment. Its ruggedized design ensures reliable operation in high-temperature and electrically noisy industrial environments commonly found in power generation and heavy drive applications.
| Parameter | Specification |
|---|---|
| Model Number | 8273-140 |
| Function | Electronic Speed Sensing and Control |
| Input Signal Type | Magnetic Pickup (MPU) or Proximity Probe |
| Control Architecture | Analog / Digital Hybrid Logic |
| Adjustable Parameters | Gain, Stability, Rated Speed Trim |
| Mounting Options | Surface mount or DIN rail (adapter dependent) |
| Physical Dimensions | 2.2 cm × 12.4 cm × 12.6 cm |
| Weight | 1.14 kg |
The 8273-140 is commonly deployed in:
Diesel and gas engine governor systems
Steam turbine auxiliary control systems
Generator set isochronous speed control
Parallel bus droop control operations
Legacy system modernization and PLC integration projects
It is widely used where precise speed stability and fast response to load variations are required.
What sensors are compatible with the 8273-140?
The module is optimized for two-wire magnetic pickup sensors that generate frequency signals proportional to shaft rotational speed.
Can this module provide overspeed protection?
Yes. While primarily a governor control module, it can be configured to generate protective output signals or drive fuel actuators to minimum fuel position when overspeed thresholds are exceeded.
