IS200EHPAG1A - EHPA Exciter Gate Pulse Amplifier Board | GE EX2100 | B7B

IS200EHPAG1A is a General Electric EHPA Exciter Gate Pulse Amplifier Board for GE EX2100 excitation control systems. In the EX2100 power conversion module (PCM), the EHPA board generates SCR gate firing pulses from ESEL gate commands and interfaces current conduction feedback, bridge airflow, and temperature monitoring for up to six SCRs per bridge.

The GEH-6632G EX2100 user guide describes the EHPA as used on 100 mm thyristor systems, requiring one gate pulse amplifier board per PCM, and powered from nominal 125 V dc supplied by the EPDM feeding an on-board dc-to-dc converter. For maintenance, repair, and spare-part planning, IS200EHPAG1A is an important replacement bridge control board when supporting EX2100 excitation control cabinets, redundant or simplex control architectures, and turbine-generator excitation system reliability.

Control system parts are provided by GTC Control Solutions, Inc., a wholly owned subsidiary of B7B. Parts are offered in unused, repaired, or remanufactured condition, subject to availability. Each repaired or remanufactured component undergoes functional testing in energized panels, with test reporting and warranty support provided for repair and lifecycle-extension programs.