Woodward 9907-164 505 Digital Turbine Governor Controller

The Woodward 9907-164 is a microprocessor-based digital governor belonging to the 505 series, developed for steam turbines, turbogenerators and turboexpanders. It realizes precise speed regulation, load control and generator synchronization for turbomachinery with built-in operator keypad and text display.

This turbine control unit supports flexible on-site parameter configuration and multiple communication interfaces. It is widely used as spare replacement and maintenance part for legacy turbine control systems in power plants, petrochemical and energy industries.

Main Specifications

• Brand: Woodward; Model: 9907-164; Type: Digital Turbine Governor Controller
• Power Supply: 24 VDC, rated 1A operating current
• Human Interface: 2-line × 24-character display, 30 multi-function keypad
• Communication: RS232 / RS422 serial ports for configuration and data exchange
• Control Functions: Speed control, load control, generator synchronization, overspeed test
• Operating Environment: -20℃ ~ +60℃, 5%‑95% RH non‑condensing
• Certifications: CE, compliant with industrial EMC and turbomachinery safety standards

Core Functions

• Provide closed-loop speed governing for steam turbines and related turbomachinery equipment.
• Support generator paralleling, load distribution and automatic synchronization control logic.
• Built-in overspeed protection test function to verify turbine safety interlock circuit.
• Local keypad and display enable on-site parameter setup, status check and fault diagnosis.
• Serial communication interface connects to upper monitoring system for remote data reading.
• Modular design supports cabinet panel mounting for convenient installation and replacement.

Application Scenarios

• Steam turbine and turboexpander control systems for power generation plants.
• Petrochemical, oil & gas turbogenerator and compressor drive control cabinets.
• Retrofit and spare replacement of legacy Woodward 505 turbine governor platforms.
• Waste heat power generation and industrial self-owned power station equipment control.
• Maintenance spare inventory for energy system integrators and turbine service contractors.

• Global aftermarket spare supply for engineering teams maintaining turbomachinery control hardware.