IS200EDEXG1BAA GE EX2100 EXCITER DE-EXCITATION

Description:

IS200EDEXG1B is an exciter De-Excitation Control Board designed and developed by GE. The EDEX is the de-excitation module's main board. When an emergency shutdown occurs and the field breaker or contactors open, this module removes stored energy from the generator field. To ensure operation in the event of a power outage, EDEX includes SCR firing, conduction sense feedback, and voltage retention. On the EXTB board, EMIO initiates de-excitation. The EXTB board activates the 41dc contactor (MDA/MDB) or breaker, then transfers de-excitation signals from the auxiliary contacts to the EDEX's SCR firing circuits. EDEX boards are classified into two types. Group 1 is for SCR de-excitation, while Group 2 is for diode de-excitation.

Datasheet Link:

IS200EDEXG1BAA GE EX2100 EXCITER DE-EXCITATION Datasheet