8290-185 Woodward | Electrically Powered Governor Control

Product Overview

The 8290-185 (Model: 8290-185) is a high-precision electronic speed control module belonging to the Woodward Electrically Powered Governor (EPG) series. This controller is specifically engineered for use with prime movers, including diesel or gas engines and gas turbines, where precise speed regulation is critical for performance and safety. The 8290-185 (Part Number: 8290-185) operates in conjunction with an EPG actuator and a magnetic pickup (MPU) to form a complete closed-loop governing system.

Designed for isochronous or droop operation, the 8290-185 (Order Number: 8290-185) ensures rapid response to load changes while maintaining engine stability. Its ruggedized construction and wide operating temperature range (-40°C to +85°C) make it a standard choice for mission-critical applications in power generation, oil & gas compression, and large-scale mechanical drive systems.

Detailed Technical Specifications

The 8290-185 is optimized for low-voltage industrial DC systems and high-frequency signal processing.

• Manufacturer: Woodward

• Model Number: 8290-185

• Series: EPG (Electrically Powered Governor)

• Application: Isochronous speed control for engines and turbines

• Power Supply: 12 VDC or 24 VDC nominal (Operating range: 10–32 VDC)

• Speed Sensing Input: Magnetic Pickup (MPU) signal (minimum 1.5 Vrms)

• Frequency Range: 3000 Hz to 6000 Hz (at rated speed)

• Control Output: Specialized PWM signal for Woodward EPG Actuators

• Steady State Speed Band: ±0.25% of rated speed

• Ambient Operating Temperature: -40°C to +85°C (-40°F to +185°F)

• Communication: Analog interface for remote speed trim; Modbus/CAN optional via expansion

• Protection Features: Reverse polarity protection, overspeed shutdown logic, and short-circuit protection

• Dimensions: 120 × 80 × 40 mm (4.7 x 3.1 x 1.6 inches)

• Weight: 350 g (0.77 lbs)

• Mounting: Surface mount or cabinet panel installation