• EPG Speed Control Module Woodward 8290-191
  • EPG Speed Control Module Woodward 8290-191
  • EPG Speed Control Module Woodward 8290-191
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EPG Speed Control Module Woodward 8290-191

EPG Speed Control Module Woodward 8290-191

The Woodward 8290-191, also cataloged as the 8290-191 Speed Control Module, operates as a dedicated hardware component for closed-loop engine speed governing and droop regulation within Electrically Powered Governor (EPG)...

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SKU: 8290-191
Vendor: Woodward
Category: EPG Speed Control Module
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The Woodward 8290-191, also cataloged as the 8290-191 Speed Control Module, operates as a dedicated hardware component for closed-loop engine speed governing and droop regulation within Electrically Powered Governor (EPG) systems.

Hardware Specifications

Parameter Specification
Model 8290-191
Brand Woodward
Origin USA
Weight 2.01 lbs (3.91 kg)
Dimensions Standard Compact Profile
Operating Temp Standard Industrial Range (-40 to +75 deg C)
Power Consumption Standard Operating Load
Series EPG Series
Operating Voltage 24 VDC
Control Mode Droop
Compatible Engine Type Diesel Engine

Actuator Loop Feedback & Thermal Response

The drive circuitry generates precise electrical output signals to position the electromagnetic actuator based on engine speed deviations. Actuator loop feedback response directly determines dynamic speed restoration, maintaining stable governing during step-load applications. Conduction through the chassis baseplate provides necessary thermal heat sink dissipation, preventing internal temperature accumulation during continuous full-load operating conditions.

Frequently Asked Questions

  • Q: What wiring specifications apply to the 24 VDC power supply connections?
  • A: Operating power lines must be sized for low voltage drop and routed through a dedicated inline fuse or circuit breaker installed on the non-grounded battery supply conductor.
  • Q: How should magnetic pickup sensor wiring be installed to prevent electrical interference?
  • A: Sensor wiring requires two-conductor twisted-shielded cable, with the shield drain wire terminated exclusively at the control unit chassis ground point.
  • Q: What is the purpose of the droop configuration on this module?
  • A: Droop mode permits intentional percentage reductions in engine speed as electrical load increases, enabling stable load sharing when operating in parallel with other power units.

Field Installation Guidelines

  • Mount the unit securely on a flat vertical surface or panel to facilitate natural air convection across the enclosure.
  • Route low-level speed sensor wiring and actuator control leads in dedicated conduits away from heavy AC power cables and ignition lines.
  • Ensure the module chassis is connected to a low-impedance ground point on the engine skid or switchgear frame.
  • Confirm that operating power polarity and supply voltage remain strictly within 24 VDC limits prior to system power-up.