General Electric IS200EMIOH1AFB EX2100 High Voltage Pulse Amplifier Board

General Electric IS200EMIOH1AFB EX2100 High Voltage Pulse Amplifier Board

Core Feature Highlights
- High-Voltage Pulse Amplification: The onboard high-speed MOSFET array and dedicated isolated power supply output precise, steep gate trigger pulses to the ESEL and subsequent EGPA boards, with peak voltages up to 2.5 kV and rising edges less than 200 ns. This ensures the SCR bridge is triggered at the optimal angle, improving excitation response speed.
- Multi-Channel I/O Hub: Integrates 16 digital inputs, 8 relay outputs, 4 analog inputs, and 2 PT/CT sampling channels, centrally managing signals from terminal blocks such as the ECTB, EACF, EXTB, and EPCT, achieving "one-card control of everything."
- Hot-Swap and Self-Diagnostics: Supports online replacement. Combined with Mark VI Toolbox software, it provides real-time readings of key parameters such as device temperature, bus voltage, and pulse counts, enabling early detection of anomalies and automatic generation of SOE event logs, reducing the risk of unplanned downtime. - Redundant and Fault-Tolerant Design: Dual redundant 24V logic power supplies, an independent watchdog timer, metal shielding, and conformal coating ensure the IS200EMIOH1AFB operates reliably in a wide range of operating temperatures and humidity, from 0–70°C and 5–95% RH, with an MTBF exceeding 200,000 hours.

Typical Applications
- Excitation systems for hydrogen-cooled or air-cooled synchronous generators in large thermal power plants and combined-cycle power plants
- Rapid excitation retrofits for pumped-storage units
- Brushless excitation upgrades for synchronous motors in industrial captive power plants

Installation and Compatibility
This board utilizes a single-slot Eurocard design with a 96-pin DIN connector on the front panel. It is fully compatible with the original Mark VI backplane, eliminating the need to modify cabinet wiring. It is also backward compatible with the IS200EMIOH1A, enabling direct replacement and upgrade, shortening the upgrade cycle.