GE IS200ESELH2AAA Exciter Selector board
Description:
IS200ESELH2AAA is GE EX21000 series printed wiring board. The Exciter Selector board receives six logic level gate pulse signals from its corresponding EMIO. These pulse signals drive up to six sets of cables which aredistributed to the exciter gate pulse amplifier (EGPA) boards. The EGPA boards aremounted in the power conversion cabinet. If there are redundant controls, two ESEL are used, one driven by 1 and the other by 2. The active ESEL, selected bycontroller C,sends the necessary control signals to the EGPA boards.

Three groups of ESEL boards are available supporting increasing redundancy levels ESELH1 contains a single bridge driver, ESELH2 contains three bridge drivers, andESELH3 contains six bridge drivers.