Woodward 8446-1019 Digital Speed Governor

Description

The Woodward 8446-1019 Digital Speed Governor is a microprocessor-based speed control unit, part of Woodward’s portfolio of precision digital speed governors. While specific technical data for this exact model is not available, it shares core design and functional traits with comparable Woodward digital speed governors, such as the 8440-2050, 8440-2085, and 9907-series units. Key expected features include a 32-bit microprocessor core and integrated printed circuit boards, paired with an operator control panel for on-site configuration and monitoring. It is designed for precise speed regulation of rotating machinery, with primary applications including steam turbines, gas turbines, and turbine generators, and may also support use in utility turbine expanders.

Like similar models, it likely incorporates multiple PID control modules (speed, auxiliary, cascade) to enable functions such as speed control, cascade control, auxiliary process control, overspeed testing, critical speed avoidance, valve position limiting, and frequency control. It can accept input signals from magnetic or proximity speed probes, compare measured speed to setpoints, and output 4-20mA control signals to actuate valves or actuators for speed adjustment. The unit is expected to offer flexible on-site configuration, a user-friendly interface, reliable operation, and compatibility with industrial settings including power, oil, chemical, metallurgy, and light manufacturing sectors.