GE IS200VPROH1BF Speedtronic Mark VI VPRO Turbine Protection Board

Product Description

The IS200VPROH1BF is a GE Speedtronic Mark VI emergency turbine protection board (VPRO). It is responsible for independent overspeed detection and emergency trip logic, providing hardwired turbine protection separate from the main control processor. It receives speed signals from turbine probes, executes overspeed protection algorithms, and drives trip relays to shut down the turbine when dangerous conditions are detected. It works together with TPRO and TREG boards inside the Mark VI control rack for gas turbine and steam turbine safety protection.

Features

• Part No: IS200VPROH1BF, Mark VI Speedtronic platform
• Independent overspeed protection and emergency trip logic for turbine
• Receives magnetic pickup speed inputs, monitors shaft speed in real time
• Hardwired safety trip circuit, independent of main control loop
• Onboard self-diagnostics, fault logging and front LED status indicators
• Conformal coating for anti-corrosion, humidity and dust resistance
• VME Eurocard form factor, plug into Mark VI backplane rack
• ESD sensitive circuit; electrostatic protection required during maintenance
• Designed for SIL-capable turbine safety interlock applications

Applications

• Gas turbine, steam turbine emergency overspeed protection cabinet
• Power plant Mark VI turbine control and safety system maintenance
• Oil & gas mechanical drive turbine protection retrofit
• Generator set safety trip and shutdown interlock
• Spare replacement for legacy Mark VI VPRO protection hardware

FAQ

Q: What is the difference between IS200VPROH1BF and IS200VPROH1B?
A: IS200VPROH1BF is a specific hardware revision variant of IS200VPROH1B, with component layout and firmware adjustments.

Q: Is VPRO the main turbine controller?
A: No, VPRO is dedicated safety protection board, independent from the main control processor for overspeed trip.

Q: Is this board discontinued?
A: Yes, Mark VI series is end-of-life, supplied as surplus, refurbished and tested spare parts only.

Q: Can it work alone without TPRO board?
A: Usually they are used as a set in the Mark VI safety rack for complete turbine protection logic.