GE IS200EXHSG3AEC Exciter HS Relay Driver Board

Product Details:

The IS200EXHSG3AEC is a printed circuit board by GE Industrial Systems, part of the EX2100 Excitation Control series—a TMR system for turbine generators. As a Static Exciter High-Speed Terminal board, it integrates with the Mark VI Turbine Control System, leveraging GE's Speedtronic technology. It is crucial for excitation control, supporting de-excitation, field flashing, and signal transmission.

Core Functions: Drives DC contactors and pilot relays for de-excitation and field flashing. Includes pilot relays for flashing relays 53A/53B and de-excitation relay KDEP.

Signal Handling: Conditions de-excitation status signals and crowbar status signals, transmitting them to the EMIO system for monitoring.

Power Specifications:
Relay coil power: 125 V DC from J9.
Relay contact power: 24 V DC from the exciter cabinet.

Relay Performance:
Resistive load: Up to 2 A at 28 V DC.
Inductive load: 1 A at 28 V DC for 0.007 seconds (L/R).
Suppression: External suppression for the relay coil to mitigate voltage spikes.

Hardware: Features solid-state relay drivers, heat sinks, 7 relays, capacitors, resistors, connectors (3 d-shell, 8 plugs), and mounting-friendly drillings/notches. Protected by standard PCB coating.