The IS200TPROH1B is a critical Turbine Protection Terminal Board (TPRO) used within the GE Speedtronic Mark VI turbine control system. Its primary function is to serve as the interface layer between the turbine’s critical safety instrumentation and the protection processors. By terminating high-speed input signals (such as overspeed sensors and emergency stop triggers) and routing them to the protection logic, it ensures the system can detect and initiate an emergency turbine trip within milliseconds, preventing catastrophic hardware failure.

⚙️ Technical Specifications

• Module Type: Turbine Protection Terminal Board (TPRO).

• System Compatibility: GE Mark VI/VIe Speedtronic™ Control Systems.

• Core Function: High-speed signal termination for critical turbine protection sensors (Overspeed, Flame Detection, Emergency Stop).

• Connectivity: Interfaces directly with the protection processor modules (e.g., VPRO) via high-density ribbon cables and provides robust screw-terminal connections for field sensors.

• Safety Architecture: Engineered to support TMR (Triple Modular Redundant) configurations, ensuring that a single point of failure does not compromise the protection trip logic.

• Operational Integrity: Features high-reliability terminal blocks and filtering circuits to reject EMI/RFI, ensuring only valid trip signals are processed.

📏 Physical & Logistics Attributes

• Dimensions: Form factor optimized for standard Mark VI control cabinet mounting.

• Weight: Approximately 1.15 kg.

• Country of Origin: United States.

🌟 Recommended Related Mark VI Modules

To maintain a high-integrity safety instrumented system (SIS), the TPRO board is typically integrated with the following modules:

1. IS200VPROH1B – Turbine Protection Module (the “brain” that receives the signals from the TPRO).

2. IS200TRLYH1B – Relay Output Terminal Board for executing the final trip command to fuel/steam valves.

3. IS200STAIH1A – Analog Input Terminal Board for non-protection related process monitoring.

4. IS200VCMIG1A – VME Communication Module for reporting protection status to the HMI.

5. IS200PSVOG1A – Power Supply Module for stable rack voltage.

6. IS200AEPAH1A – Power distribution and signal interface board.

7. IS200VTURH2B – Turbine Control Processor Board for governing logic.

8. IS200DSPDH1A – Digital Signal Processor for secondary protection logic.