WOODWARD 5437-1119 ProTech-GII Turbine Overspeed Safety Module

WOODWARD 5437-1119 is a safety protection module for Woodward ProTech-GII triple modular redundant overspeed protection system. It collects speed pulse signals from turbine probes, executes overspeed logic judgment and emergency trip commands to protect gas and steam turbines and rotating machinery from over-speed damage.

This TMR safety module meets IEC 61508 SIL3 requirements, with on-board hardware self-diagnosis and fault alarming. It works with other ProTech-GII modules to realize redundant overspeed protection. Widely used in power, chemical and pulp & paper turbine overspeed protection maintenance, spare replacement and safety system retrofit projects.

Data Parameters

• 1. Brand: Woodward (USA).

• 2. Model: 5437-1119.

• 3. Product Type: ProTech-GII Overspeed Safety Protection Module.

• 4. Application: Gas / steam turbine and rotating machinery overspeed trip protection.

• 5. Feature: TMR triple modular redundancy, SIL3 safety certification.

• 6. Characteristic: High-speed pulse input for magnetic speed pickups.

• 7. Interface: Speed probe input, trip relay output, system bus communication.

• 8. Package: Rack plug-in electronic module assembly.

• 9. Mounting: Installed inside ProTech-GII safety rack chassis.

• 10. Operating Temperature: -20℃ ~ +60℃.

Core Functions

• 1. Receive pulse signals from magnetic speed probes and calculate real-time rotating speed of turbine rotors.

• 2. Overspeed threshold comparison and emergency trip output to cut fuel or steam supply automatically.

• 3. TMR voting logic to avoid false trip caused by single point hardware failure.

• 4. Continuous hardware self-test, monitor module health and report faults to the host system.

• 5. Store overspeed trip event records for post-fault review and troubleshooting.

Application Scenarios

• 1. Power plant turbine ProTech-GII overspeed protection rack module spare replacement.

• 2. Petrochemical plant turbocompressor safety interlock cabinet maintenance project.

• 3. Pulp and paper mill turbogenerator overspeed protection system upgrade.

• 4. Heavy industry rotating machinery SIL3 safety protection spare parts inventory backup.

• 5. Old ProTech-GII safety module renewal and retrofit project.

FAQ

• 1. Q: What is WOODWARD 5437-1119?
      A: It is Woodward ProTech-GII TMR overspeed safety module for turbine over-speed trip protection, SIL3 rated.

• 2. Q: What signal does it accept?
      A: It receives pulse signals from magnetic speed pickups installed on turbine rotor.

• 3. Q: Can it be hot swapped?
      A: Follow Woodward safety operation procedure; verify redundant channel status before module replacement to prevent unexpected trip.