GE IS200EDEXG1ADA Exciter De‑Excitation Board

FAQ

Q1. What is the GE IS200EDEXG1ADA?
It’s a de‑excitation control board used to safely dissipate stored energy from the generator field by controlling SCR firing during shutdowns or fault events.

Q2. Which control systems is it compatible with?
It is compatible with GE EX2100 excitation control systems and Mark VI platform excitation control racks.

Q3. What is the primary function of this board?
The board provides SCR de‑excitation firing, conduction sense feedback, and voltage retention for controlled field energy discharge.

Q4. How does the board help during a shutdown?
During a shutdown or trip, it fires SCRs to provide a conduction path that safely dissipates the energy stored in the generator’s field winding.

Q5. What environmental conditions can it handle?
It operates reliably in industrial environments, typically from –40 °C to +70 °C and standard humidity ranges.

Q6. What are the physical dimensions and weight?
The module’s approximate dimensions are 160 mm × 160 mm × 120 mm and weighs about 0.8 kg.

Q7. What electrical connection does this board require?
It receives 24 V DC from the excitation power supply and converts it internally to drive SCRs for de‑excitation.

Q8. Why is this board important in excitation systems?
It ensures that stored field energy is safely and reliably dissipated during trips or shutdowns, protecting the generator and related equipment.

GE IS200EDEXG1ADA

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