Product Overview

The General Electric IS200TRPGH1B (revision H1BCC) is a specialized Primary Trip Terminal Board engineered for the Mark VI and Mark VIe gas turbine control platforms. This module serves as the critical hardware interface for the turbine's emergency shutdown system, managing the Electrical Trip Devices (ETDs). Unlike simplex variants, the H1B is designed for Triple Modular Redundant (TMR) architectures, employing a sophisticated voting logic to prevent both failed-to-trip scenarios and nuisance shutdowns. It acts as the termination point for flame detectors and trip solenoids, bridging field instrumentation with the TREG (Turbine Emergency Trip) board and the main control processors to ensure fail-safe machinery protection.

Hardware Parameters and Key Technical Characteristics

The IS200TRPGH1B is defined by its redundant relay logic and its ability to process high-sensitivity flame detection signals within a hardened industrial form factor.

• Manufacturer: General Electric (GE)

• Model Number: IS200TRPGH1B / IS200TRPGH1BCC

• System Series: Mark VIe Speedtronic

• Voting Logic: 2-out-of-3 (2oo3) relay voting for solenoid activation

• Relay Configuration: 9 magnetic relays organized into 3 independent voting circuits

• Flame Detector Support: Interfaces with up to 8 Geiger-Mueller flame detectors

• Solenoid Management: Controls 3 independent primary trip solenoids

• Diagnostic Interface: Integrated LED status indicators for real-time relay and circuit health monitoring

• Environmental Durability: Industrial-hardened PCB coating for chemical and thermal resistance

• Physical Mass: 1.42 kg

• Board Dimensions: 33.0 x 17.8 x 5.5 cm

• Origin: United States of America (USA)

Operational Use Cases and Industrial Applications

This terminal board is a fundamental safety component in utility-scale power generation where turbine protection is non-negotiable.

• Emergency Turbine Shutdown: Executing microsecond-response trip commands to de-energize solenoids and stop fuel flow during overspeed or thermal fault conditions.

• Flame Monitoring and Protection: Aggregating data from multiple combustion chambers to detect flame-out conditions in gas turbines, triggering an immediate safety sequence.

• TMR System Reliability: Eliminating single points of failure by requiring two of the three control cores to agree before a trip action is finalized, perfect for mission-critical peaking stations.

• Electrical Trip Device (ETD) Interfacing: Providing the high-current switching capacity required to drive heavy-duty industrial solenoids directly from the DCS logic.

• Combined-Cycle Power Plant Integration: Serving as a primary protective layer for large frame turbines (7FA/9FA series) within integrated Mark VIe control networks.

By utilizing the IS200TRPGH1B, facilities benefit from GE's proven protection philosophy, which balances the need for absolute safety with the economic requirement to avoid unnecessary operational downtime.