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The GE IS210TRELH2A is a Trip Relay Board Assembly for the Mark VIe series of GE’s Speedtronic Gas Turbine Control Systems. The “TREL” in the part number stands for Trip Relay. This board is specifically designed to work with a 24 VDC power supply to control critical trip relays.
Key Features and Functionality
The IS210TRELH2A is a vital component for the safety and protection of a turbine. Its main functions include:
- Trip Relay Control: The board contains the relays that directly control the turbine’s trip circuits. When a trip condition is met (e.g., overspeed, high vibration, or an emergency stop), the control system sends a signal to the board, which de-energizes the relays.
- 24 VDC Operation: This board is specifically designed to operate with a 24 VDC power supply. This low-voltage level is common in control systems and is often provided by a dedicated battery system for reliability.
- 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 typically 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. It is a key part of the turbine’s emergency shutdown system.
