Product Details：

Woodward 5437-027 is a 2301A speed control controller, a proven analogue governor unit designed for speed regulation of steam turbines, gas turbines and diesel generator prime movers. It is widely adopted in industrial power generation and compression equipment, focusing on stable rotational speed control under varying load conditions.

This controller receives pulse speed signals from magnetic pickups, and outputs proportional drive signals to hydraulic actuators. It adjusts fuel valve or steam valve opening continuously according to the deviation between actual rotating speed and set value, suppressing speed fluctuation caused by sudden load change.

It is equipped with built-in adjustable gain, droop and stability tuning parameters. Technicians can set isochronous or droop control mode on site to meet generator parallel operation or single-unit constant speed requirements. The front panel has accessible adjustment knobs and status indication points for simple commissioning and inspection.

It supports dry contact discrete interlock input for emergency trip and external enable signals. The internal circuit is designed with noise suppression, which can work reliably in compressor rooms and power station environments with heavy vibration and electromagnetic interference. It is matched with hydraulic actuator and magnetic pickup assemblies of Woodward governor system.

It has integrated overspeed monitoring and fault detection functions. It can identify the loss of speed feedback signal and trigger alarm or trip output according to preset logic, providing an important layer of safety protection for rotating machinery.

It adopts standard panel mounting form for installation inside control cabinets. It is commonly used for old governor replacement, unit overhaul and control system retrofitting projects in power, petrochemical and gas compression industries. It is a classic and robust analogue speed governor solution for prime mover equipment.

Key specifications：Woodward 5437-027 2301A speed control controller,24VDC power supply,analogue speed loop,hydraulic actuator drive output,droop and isochronous mode,panel mount. Operating temperature range: -20°C to +60°C. It supports speed gap calibration, gain tuning and actuator stroke response test during maintenance.

This 2301A controller cooperates with magnetic pickups and hydraulic actuators to build steady analogue speed regulation loops. The accessible adjustment design supports convenient on-site tuning and routine maintenance.