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The GE part number IS200ESYSH1A is a System I/O TMR Card for the EX2100e Excitation Control System. Its primary function is to provide a highly reliable, triple-redundant (TMR) interface for the system’s inputs and outputs, ensuring fault tolerance and continuous operation. ⚡
Function and Key Features
This board is a crucial part of the high-reliability Mark VIe Excitation Control System, designed for applications where a single point of failure cannot be tolerated.
- Triple Modular Redundancy (TMR): The “TMR” designation indicates that the board has three independent, identical I/O circuits. All three channels receive the same input signals, and their outputs are constantly monitored and voted on. This design ensures that if one channel fails, the other two can outvote it, and the system continues to operate without interruption or error.
- I/O Interface: The ESYS board provides a wide range of analog and digital I/O channels. This includes inputs for sensors that measure voltage, current, and temperature, as well as outputs to control devices like relays and contactors.
- System Integration: The ESYS card works in conjunction with the main control card (like a DSPX) to form the complete excitation control system. It’s the primary point of connection for all the field wiring.
- Robust Design: Like all GE industrial control components, it is built to withstand the harsh conditions of a power plant.
Applications
The IS200ESYSH1A is a key component in power generation facilities that have upgraded to the Mark VIe Excitation Control System. It is essential for:
- Critical Applications: It is used in applications where the highest level of reliability and availability is required, such as in large-scale power plants where a generator trip would have significant economic and grid stability consequences.
- Fault Tolerance: The TMR design ensures that the system is highly fault-tolerant and can continue to operate reliably even with internal component failures.
