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The GE IS210TRPLH1A is a Trip Relay Board Assembly for the Mark VIe series of GE’s Speedtronic Gas Turbine Control Systems. The “TRPL” in the part number stands for Trip Relay Logic. The “TMR” in the description indicates that this board is a component of a Triple Modular Redundancy system.
Key Features and Functionality
The IS210TRPLH1A is a vital component of a safety-critical, highly reliable control system. Its main functions include:
- Triple Modular Redundancy (TMR) Support: This board is designed to work in a TMR configuration, which is the highest level of redundancy offered by the Mark VIe. In a TMR system, three separate controllers (R, S, and T) and their associated I/O packs and terminal boards are used. The system employs voting logic to ensure that a turbine trip is only initiated if at least two of the three controllers agree on the condition. This provides exceptional fault tolerance.
- Trip Relay Control: The board contains the relays that directly control the turbine’s trip circuits. When a trip condition is met, the control system sends a signal to the board, which de-energizes the relays.
- Fail-Safe Design: The board is designed to be fail-safe, meaning that a loss of power to the relays will cause them to de-energize and initiate a trip. This ensures that the system will shut down in a controlled manner if a power failure occurs.
- DIN-Rail Mounting: The assembly is designed for DIN-rail mounting, which is a common and efficient method for organizing and installing control system components in a cabinet.
- Safety-Critical Application: This board is used in safety-critical applications where a reliable and fast shutdown is required to protect the turbine from catastrophic damage.
