GE DS200TBQAG1A Turbine Control Board

The GE DS200TBQAG1A is a plug‑in control board used in GE Mark V Speedtronic turbine control systems. It processes analog and digital field signals and executes part of the turbine closed‑loop regulation and interlock control logic.

This circuit board communicates with other modules through the rack backplane bus and supports onboard hardware self‑diagnosis. It is widely stocked as replacement spare parts for power plant turbine cabinet maintenance, obsolete board renewal and control system retrofitting projects.

Main Specifications

• Brand: GE; Model:DS200TBQAG1A; Type:Turbine Control Circuit Board
• Installation:Plug‑in design, compatible with GE Mark V control rack
• Function:Signal acquisition and processing, control logic operation, backplane data exchange, fault diagnosis
• Communication:High‑speed data interaction with main CPU and I/O boards via rack backplane bus
• Feature:Built‑in diagnostic circuit, LED operation and fault status indicators
• Cooling:Natural convection cooling for long‑term cabinet continuous operation
• Operating Environment:0℃ ~ +60℃, 5%‑95% RH non‑condensing, industrial anti‑vibration design
• Certifications:Meets GE Mark V gas and steam turbine control system specifications

Core Functions

• Receive and preprocess analog and digital signals transmitted from field terminal boards.
• Carry out partial closed‑loop regulation, sequence control and safety interlock logic for turbines.
• Perform real‑time self‑inspection of onboard hardware and external signal circuit failures.
• Exchange operating data and control commands with the main controller through the backplane bus.
• Provide local LED fault prompts to help maintenance staff quickly locate equipment anomalies.
• Directly ｒｅｐｌａｃｅ faulty original boards to restore stable operation of the Mark V control rack.

Application Scenarios

• Signal processing and control component for GE Mark V steam turbine and gas turbine control racks.
• Critical spare circuit board for power generation turbine control cabinet overhaul and maintenance.
• Retrofit and spare replacement for aging Mark V racks and defective control board upgrade projects.
• Safety interlock and sequence control hardware of thermal power and combined cycle power units.
• Field signal processing and auxiliary control equipment of large‑capacity industrial turbine control systems.

• Global aftermarket spare supply for maintenance teams servicing GE Mark V series control hardware.