The 8290-185 (Part Number: 8290-185) is a precision Electrically Powered Governor (EPG) speed control module designed for high-performance engine management. Specifically engineered for diesel, gas, or gasoline engines, this unit provides accurate isochronous speed control for prime movers driving mechanical loads or generators. The 8290-185 (Model: 8290-185) belongs to the Woodward EPG series, a product line recognized for exceptional reliability in industrial environments where frequency stability and rapid response to load transients are critical.
Unlike complex digital control systems, the 8290-185 (8290-185) focuses on robust analog performance with simplified installation. It utilizes industrial-grade screw clamp terminals for secure wiring and operates on a nominal 24 VDC power source. This controller is traditionally paired with Woodward’s 512, 524, or 1724 EPG series actuators to form a complete governing system. Its specialized internal circuitry effectively filters out electromagnetic interference (EMI), ensuring stable RPM maintenance for heavy-duty power generation and industrial pumping applications.
The 8290-185 (8290-185) is built to rigorous industrial standards to ensure long-term stability:
Manufacturer: Woodward
Model Number: 8290-185 (8290-185)
Product Series: EPG (Electrically Powered Governor)
Input Voltage: 12/24 VDC Nominal (18–32 VDC Operating Range)
Power Consumption: 95 VA Maximum (during actuator full-stroke)
Speed Sensing: Magnetic Pickup (MPU) Signal (Minimum 1.5 Vrms)
Frequency Range: 3000 Hz to 6000 Hz at rated speed
Control Type: Isochronous (Maintains constant speed regardless of load)
Actuator Compatibility: Optimized for Woodward 512, 524, or 1724 EPG Actuators
Adjustments: On-board potentiometers for Rated Speed, Gain, and Stability
Terminal Type: Secure Screw Clamp
Operating Temperature: –40 °C to +75 °C
Weight: 2.07 lbs (0.94 kg)
Mounting: Chassis or Internal Panel Mount
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