IS200EHPAG1DAB GE Exciter Gate Pulse Amplifier Board

Description

TheIS200EHPAG1DAB Gate Pulse Amplifier Boardis a critical interface between theEX2100 controllerand the power bridge in GE’s excitation systems. Its primary function is to amplify and distribute gate pulses to sixSilicon Controlled Rectifiers (SCRs), enabling precise switching and control of generator field current. Moreover, this board receives gate commands from theESEL boardand converts them into high-voltage pulses suitable for triggering SCRs. It also supports fault monitoring and thermal protection, ensuring system integrity under demanding operating conditions. In addition to its core function, theEHPAG1DABcontributes to excitation system diagnostics and fault isolation, making it essential for safe and efficient generator operation. Therefore, this module is widely used ingas,steam, andhydroelectric power plantswhere precise SCR control is crucial for excitation reliability.