+86 15340683922
+86 15340683922الوصف
The GE part number IS200ESELH1A is a Selector Card for the EX2100 Excitation Control System. Its primary function is to provide the logic and switching required to seamlessly transfer control between redundant exciter channels in a dual-channel configuration. ⚡
Function and Key Features
In a redundant system, there are two identical control modules (often designated “channel A” and “channel B”) operating in parallel to provide a high level of reliability and fault tolerance. The ESEL board manages this redundancy.
- Redundancy Management: The ESEL board constantly monitors the status and health of both the primary and backup exciter channels. It contains the logic to determine which channel is “active” or in control of the generator’s field excitation.
- Seamless Transfer: A key feature of this board is its ability to perform a bumpless transfer between the two channels. If the active channel fails or is taken offline for maintenance, the ESEL board can instantly switch control to the standby channel without any interruption or disturbance to the generator’s output.
- Selector Logic: The board contains the circuitry and logic to perform the “selection” of the active channel based on pre-programmed rules and system health diagnostics.
- System Integration: The ESEL card works in conjunction with the main control cards (like DSPX) and other I/O boards to form the complete EX2100 system.
- Robust Design: Like all GE industrial control components, it’s built to withstand the harsh conditions of a power plant.
Applications
The IS200ESELH1A is a key component in power generation facilities where an uninterrupted power supply is critical. It’s used for:
- High-Reliability Applications: It ensures that a failure in one control channel will not cause a generator trip, which is essential for maintaining grid stability.
- Maintenance: It allows for online maintenance and troubleshooting of an exciter channel, as a technician can safely switch to the backup channel and then service the primary unit without having to shut down the generator.
