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Woodward 9903-003-D
Product Name: Woodward 9903-003-D PROTECH Series Overspeed Protection System CPU Control Board
Product Introduction: Core main control module of Woodward PROTECH-GII overspeed safety protection system; undertakes triple redundant speed detection, voting logic judgment and overspeed trip control functions.
Technical Specifications:
- Matching System: Woodward PROTECH-GII overspeed protection platform
Detailed content
- Operating Power Supply: Dual redundant 24V DC
- Speed Inputs: 3 independent MPU speed detection channels
- Protection Architecture: 2-out-of-3 hardware voting safety logic
- Trip Response Time: <12ms
- Operating Temperature: -20°C to +60°C
Functional Features:
- Triple independent speed signal acquisition and voting judgment
- Integrated overspeed and overacceleration df/dt detection protection
- Automatic periodic overspeed self-test function
- Fault self-diagnosis and historical event recording
- Independent safety trip logic separated from main turbine control system
Application Scenarios: Steam turbine overspeed safety protection, gas turbine prime mover safety control, power station rotating machinery overspeed protection systems.
