Woodward 8526-624 UG series electro-hydraulic actuator

Woodward 8526-624 UG series electro-hydraulic actuator

8526-624 belongs to the Woodward UG series electro-hydraulic actuator, which is the power execution unit of the speed control system. 8526-624 This actuator receives the control current signal output by the electronic governor, converts the electrical signal into the output torque of the rotating machinery, and drives the fuel rack or intake control valve. It is mainly used in conjunction with diesel generator sets, gas generator sets, and small steam turbine speed control systems.

Product function

1. Speed control execution drive: Receive simulated control signals from the speed control controller, output rotational torque, directly operate the fuel valve and gas regulating valve, change the fuel supply amount, and achieve unit speed regulation.
2. Dynamic load adjustment: Real time adjustment of fuel supply following load changes, maintaining stable engine and generator speeds, and ensuring frequency stability under grid connected or independent operating conditions.
3. Emergency shutdown execution: Cooperate with external shutdown devices to achieve fuel cut-off, quickly cut off fuel in case of unit failure, and complete emergency shutdown protection.
4. Compatible with electronic speed control system: It can be matched with multiple speed control controllers such as Woodward 2301, 505, 723PLUS, etc., to form a complete electro-hydraulic speed control closed-loop system.
5. Transmitting position feedback: Equipped with an internal position sensing mechanism, the actual angle of the output shaft is fed back to the speed controller to form a position closed loop and improve control accuracy.
6. Compatible with retrofitting old units: Inheriting the traditional UG installation interface, it can directly replace old mechanical speed control actuators, facilitating the upgrade of electronic speed control solutions for old equipment.