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The GE IS210TREGH3B is a GT (Gas Turbine) Emergency Trip Terminal Board Assembly for the Mark VIe series of GE’s Speedtronic Gas Turbine Control Systems. It is a critical component of the turbine’s protection system, providing a physical interface for initiating a high-priority, rapid shutdown, often referred to as an “emergency trip.”
Key Features and Functionality
The IS210TREGH3B is vital for the safety of the turbine. Its main functions include:
- Emergency Trip Interface: The board provides the physical connection points for signals that initiate an emergency trip. These signals come from critical safety devices like overspeed detectors, emergency stop buttons, or fire detection systems.
- Trip Relays: The board contains relays that directly control the turbine’s trip circuits. When an emergency trip condition is met, the control system de-energizes these relays, which in turn causes the main trip solenoid valve to close, shutting off the fuel supply to the turbine.
- 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, which is a key safety requirement.
- DIN-Rail Mounting: The assembly is designed to be mounted on a standard DIN rail, which is a common and efficient method for organizing and installing control system components in a cabinet.
- Safety-Critical Application: The board is used in safety-critical applications where a reliable and fast shutdown is required to protect the turbine from catastrophic damage.
