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The GE IS230TSVCH3A is a triple-modular redundant (TMR) servo control assembly for the GE Mark VIe control system. This is a complete, pre-configured unit designed for highly reliable and fault-tolerant control of servo valves and other analog output devices, commonly used in hydraulic control systems on turbines.
Key Features
- Triple-Modular Redundant (TMR): This is the most critical feature. The TMR configuration uses three identical I/O packs operating in parallel. A voting algorithm compares the commands from all three packs, ensuring that the control system sends the correct signal even if one or two modules fail. This redundancy is crucial for applications where a single point of failure could lead to a catastrophic event, such as a loss of control over a turbine’s fuel or steam flow.
- Servo Control: The module is specifically designed to output a precise analog signal, typically a current signal like 4-20 mA, to drive servo valves. These valves are used for extremely precise and high-speed positioning of actuators that control fuel, steam, or other process variables.
- Assembly: The part number signifies a complete, ready-to-install unit, consisting of both a terminal board and the three electronic I/O packs.
- Mark VIe Integration: As part of the IS230 series, this assembly is a key component of the Mark VIe control platform, which is widely used for controlling gas and steam turbines in power generation and other heavy industries.
Applications
The IS230TSVCH3A is used in mission-critical industrial settings where a loss of control could lead to a catastrophic event or significant downtime.
- Power Generation: It is a core component in the control systems of gas and steam turbines, providing precise and reliable control over fuel valves, steam valves, and other actuators that regulate the speed and power output of the turbine.
- Safety Systems: The TMR design makes it an integral part of safety-instrumented systems, where the goal is to maintain control and bring a process to a safe state when dangerous conditions are met.
