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WOODWARD 9907-149 Digital governor system

WOODWARD 9907-149 is a digital speed controller mainly used for industrial scale steam turbines, small turbine generators, or utility turbine expander modules. It controls the operation of the steam turbine by driving the inlet valve with a pair of actuators, equipped with a 32-bit microprocessor. The upper end is connected to an AC power supply, and the lower end is connected to a DC motor. The AC power is converted into two DC power outputs, which are respectively input to the excitation (stator) and pivot (rotor) of the DC motor. The speed of the DC motor is adjusted by controlling the DC voltage of the armature. Capable of accurately monitoring and adjusting the speed of engines or rotating machinery, achieving high-precision speed control.

WOODWARD 9907-149 Digital governor system

Input voltage: 120 Vac/dc.
Dimensions: Width 19 inches x Height 12.244 inches x Depth 5.62 inches.
Working temperature: -13 ° F to+140 ° F.
Weight: Less than 17 pounds.
Speed sensing unit parameters: travel speed set point 250rpm to 25000rpm; MPU gear teeth range from 20 to 120; MPU malfunction timeout from 1 second to 533 minutes and 20 seconds; MPU fault set point from 100rpm to 25000rpm.

Product Performance
High control accuracy: It can accurately monitor and adjust the speed of the engine or rotating machinery, achieving high-precision speed control.
Strong reliability: Equipped with independent power supply, operating interface, and alarm system, adopting a three game two win voting method to ensure stable operation in various industrial environments.
Rich functionality: Adopting digital control technology, providing flexible control logic and parameter configuration capabilities. Supports multiple input and output interfaces, facilitating data exchange and communication with other devices. Built in overload protection, overvoltage protection, overspeed protection and other protection functions, as well as remote monitoring, data recording and analysis functions.




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