Product Short Description
Overview:
The Woodward 8290-191 is an EPG (Electrically Powered Governor) electronic speed controller that eliminates the need for mechanical linkages and hydraulic systems. It provides precise speed control for diesel and gas engines and small gas turbines, supporting load sharing and anti-blackout start functions. It is the “brain” for stable engine operation in demanding industrial and marine environments.
Description
Technical Specifications:
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Supply Voltage: 24 VDC (20–32 VDC range)
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Control Method: Single-phase voltage drop / synchronous (isochronous) control
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Max. Actuator Load: 2.3 J (1.7 ft-lb)
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Actuator Compatibility: Woodward 512/524, 1712/1724 series electric actuators
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Communication: RS-485 (EIA-485, Modbus-RTU)
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Speed Range: 300–3600 RPM, accuracy ± 0.1 % of rated speed
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Actuator Output: 0–200 mA (proportional)
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Response Time: ≤ 200 ms to recover stable speed under load change
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Power Consumption: Maximum 95 W
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Operating Temperature: -40 °C to +70 °C (-40 °F to +167 °F)
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Weight: 5.0 kg (11.02 lb)
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Dimensions: 292 × 230 × 127 mm
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Certifications: EU directives compliant, UL listed
Key Features:
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Purely electric, no hydraulics – eliminates hydraulic oil, pumps, and piping; no leak risk
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Single-phase voltage-drop control for small generator voltage regulation
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Synchronous control mode for multi-unit parallel operation
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Built-in over-current and under-voltage protection
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Remote parameter configuration via RS-485
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Fault alarm via both communication interface and LED indicators
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Anti-blackout start function
Application Scenarios:
Small diesel generator set speed control, industrial pump-drive engines, agricultural irrigation diesel water pumps, construction machinery auxiliary power, emergency standby power systems, marine propulsion auxiliary engines.
Installation & Notes:
Connect only to compatible Woodward electric actuators (512/524 or 1712/1724 series). Provide 24 VDC supply capable of 95 W peak. Ensure proper polarity; reverse connection may damage the unit. Ground the RS-485 shield at one end only. Operate within -40 to +70 °C; provide ventilation if enclosed.
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