Description
1. Product Title
GE IS200TPROS1CBB – Mark VI Turbine Protection Termination Board
2. Product Overview
TheIS200TPROS1CBB is a specialized Turbine Protection (TPRO) termination board engineered for the GE Mark VI Speedtronic control system. This module serves as the primary interface for safety-critical emergency trip functions. Its core role is to manage the inputs and outputs associated with the turbine’s protective layer, specifically interfacing with the emergency trip board (ETRP) and the turbine protection I/O packs.
This board handles vital signals such as emergency stop (E-Stop) pushbuttons, speed sensor inputs for overspeed protection, and generator breaker status. By centralizing these high-consequence signals, the <span style=”color: blue IS200TPROS1CBB ensures that the turbine can be brought to a safe state independently of the primary control loops. It solves the industrial requirement for a dedicated, hardware-arbitrated protection path that minimizes the risk of catastrophic mechanical failure during overspeed or emergency conditions.
3. Technical Specifications
- Brand: General Electric (GE)
- Model: IS200TPROS1CBB
- Warranty: One Year
- Condition: 100% New & Original
- Series: Mark VI Speedtronic
- Function: Emergency Turbine Protection & Trip Interface
- Inputs: E-Stop, Overspeed sensors, and external trip interlocks
- Outputs: Interface to Emergency Trip Relay (ETRP) boards
- Termination: Two-tier screw-type barrier terminal blocks
- Redundancy: Supports Simplex and TMR (Triple Modular Redundant) protection architectures
- Operating Temp: -30°C to +65°C (-22°F to +149°F)
- Humidity: 5% to 95% non-condensing
4. Key Features & Benefits
- Dedicated Protection Path: TheIS200TPROS1CBB provides a hardware-level protection interface that operates in parallel with the main control system, ensuring fail-safe performance.
- Overspeed Protection Integration: Designed to land magnetic pickup (MPU) signals used for speed monitoring, enabling the system to detect and react to overspeed conditions within milliseconds.
- Ruggedized Signal Conditioning: Features onboard filters and surge suppression to protect the protective logic from electrical noise generated by large generator sets and motors.
- Comprehensive Diagnostic Monitoring: The board allows the Mark VI system to monitor the continuity of trip circuits, providing early warning if a safety loop is compromised.
5. Application Scenarios
- Emergency Trip Systems (ETS): Deployed as the primary landing board for hardwired emergency stop circuits in utility-scale gas and steam turbines.
- Mechanical Overspeed Protection: Used to interface speed probes directly to the protection processors for redundant speed monitoring.
- Generator Protection Integration: Facilitates the link between the generator’s electrical protection relays and the turbine’s hydraulic trip manifold.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the IS200TPROS1CBB ?
- A: It is a termination board that interfaces emergency trip signals and protection-related I/O between the field and the Mark VI protection processors.
- Q: How does the “S1CBB” suffix impact compatibility?
- A: The suffix “S1CBB” identifies the specific hardware group and revision. It is critical to match this exactly to ensure compatibility with your existing ETRP boards and I/O cabling.
- Q: Can this board be used for TMR configurations?
- A: Yes, theIS200TPROS1CBB is designed to work within both Simplex and TMR (Triple Modular Redundant) protection schemes to fan out signals to the R, S, and T protection cores.





