GE DS2020DACAG2 AC/DC Power Conversion Assembly

The GE DS2020DACAG2 is a 1000‑watt AC‑to‑DC power conversion unit for GE EX2100 excitation control system, compatible with Mark V and Mark VIe turbine control racks. It converts 115/230VAC input into regulated 126VDC output, supplying stable high‑voltage DC bus power for gate pulse amplifier boards and excitation controller hardware of generator excitation equipment.

This cabinet‑mount power assembly supports parallel redundant operation for enhanced system reliability. It integrates over‑voltage, over‑current and short‑circuit protection circuits, and provides status LED indicators for power‑supply health monitoring. Widely used as aftermarket spare part for power‑plant generator excitation cabinet overhaul, power‑loop debugging and excitation‑system retrofitting projects.

Main Specifications

• Brand: GE General Electric; Model:DS2020DACAG2; Type:AC/DC Power Conversion Assembly
• Applicable System: GE EX2100 excitation control system, compatible with Mark V / Mark VIe turbine control racks
• Electrical:Input 115/230VAC 50/60Hz; Output 126VDC, rated power 1000W, max output current 9.5A; support parallel redundant configuration
• Function:AC‑DC power conversion, 125VDC bus power supply for excitation power units, over‑voltage / over‑current / short‑circuit protection, power‑fault status indication
• Feature:Cabinet chassis‑mount assembly, metal protective housing, front‑panel LED status indication, backward compatible with DS2020DACAG1
• Installation:Installed inside generator excitation cabinet, matched with EX2100 control rack modules
• Operating Environment:‑30℃ ~ +60℃, 5%‑95% RH non‑condensing
• Certifications: CE compliant for power‑plant generator‑excitation automation applications

Core Functions

• Convert industrial AC input into stable regulated 126VDC high‑voltage DC bus power for EX2100 excitation rack hardware.
• Supply operating power for gate pulse amplifier boards and core excitation controller modules to guarantee normal excitation‑control operation of generator units.
• Built‑in multi‑dimension protection circuits prevent downstream power‑electronic components from damage caused by overload, short‑circuit and voltage‑surge faults.
• Support multi‑module parallel redundant operation to improve power‑supply reliability for critical power‑generation equipment.
• Front‑panel LED indicators reflect power‑supply running state for fast fault identification during routine inspection and maintenance work.
• Improve power‑supply ride‑through performance when main control power fluctuates, ensuring continuous stable operation of excitation‑system.

Application Scenarios

• High‑voltage power‑supply component for GE EX2100 generator excitation control systems.
• Critical spare‑part for thermal‑power‑plant combined‑cycle unit generator‑excitation cabinet maintenance and overhaul.
• Retrofit and spare replacement for legacy DS2020DACAG2 power‑conversion‑assembly excitation‑system upgrade projects.
• Excitation cabinet overhaul, power‑bus‑loop debugging and faulty AC‑DC‑power‑assembly replacement tasks.
• Spare‑parts inventory for power‑automation integrators and thermal‑power‑generation‑engineering contractors.
• Global aftermarket spare supply for technical teams maintaining GE EX2100 excitation‑control automation hardware.