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The GE part number IS200EAUXH1A is a Mark VIe Auxiliary Functions Board designed for the EX2100E Excitation Control System. Its primary function is to handle various auxiliary I/O and communication functions, providing an interface for the main control board to interact with other systems in a power plant. The “TMR” in the name stands for Triple Modular Redundancy, indicating that this board is a component of a highly reliable, fault-tolerant system. ⚙️
Function and Key Features
The EX2100E is a digital control system that regulates the output voltage of a generator. The EAUX board adds flexibility to this system by providing a wide range of additional I/O.
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- Auxiliary I/O: The board provides additional input/output channels beyond what is available on the main control board. These can include a mix of analog and digital signals for monitoring and controlling various auxiliary equipment, such as fans, pumps, and heaters.
- Triple Modular Redundancy (TMR): In a TMR system, three identical control modules operate in parallel and perform the same task. The system uses a “voting” process to compare the outputs and determine the correct action, ensuring that a single-point failure in one module will not affect the system’s operation. The EAUX board is designed to function as part of this redundant architecture.
- System Integration: The EAUX board works in conjunction with the main control card (like a DSPX) and other I/O boards to form the complete excitation control system.
- Robust Design: Like all GE industrial control components, it is built to withstand the harsh conditions of a power plant, including high voltages, vibrations, and electromagnetic interference.
Applications
The IS200EAUXH1A is a key component in power generation facilities that have upgraded to the Mark VIe Excitation Control System. It is used for:
- Generator Control: It provides the data necessary for the EX2100E system to precisely control the generator’s voltage and reactive power.
- Grid Stability: By ensuring the generator’s output is stable, it plays a key role in maintaining the stability and reliability of the electrical grid.
- Power Plant Automation: It is an integral part of the automation system for the generator, helping to manage startup, shutdown, and normal operation.
