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- GE
- DS200TCQCG1BJG
- RST Overflow Board
- USA
- 330 × 280 × 25 mm
- 0.45 kg
- Xiamen, China
- New & In Stock
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Product Overview
The GE DS200TCQCG1BJG is a Mark V RST Overflow Board used in GE Mark V turbine control systems. It is a board-level component within the Mark V control cabinet and works with the surrounding control, I/O, terminal, and interface hardware rather than operating as a standalone controller.
The board is associated with the RST portion of the Mark V architecture, where control and signal-handling functions are distributed across multiple boards. In an operating turbine system, the board forms part of the electronic path supporting the configured control functions and communicates through the surrounding Mark V hardware.
For maintenance work, the DS200TCQCG1BJG should be evaluated in the context of the complete Mark V cabinet. A fault appearing in an associated function can also be caused by terminal hardware, interconnecting cables, adjacent boards, power conditions, or another point in the signal path.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product | GE DS200TCQCG1BJG |
| Product Type | Mark V RST Overflow Board |
| Series | Mark V |
| Board Type | RST Overflow Board |
| Function | Overflow signal and control-system interface within the Mark V architecture |
| Application | Turbine control and monitoring |
| System Integration | GE Mark V control architecture |
| Dimensions | 330 × 280 × 25 mm |
| Weight | 0.45 kg |
Product Features
- Mark V RST architecture compatibility for turbine control installations.
- Dedicated overflow-board function within the configured Mark V system.
- Board-level construction for installation in Mark V control cabinets.
- Integration with associated Mark V electronics for signal and control functions.
- Suitable for legacy turbine systems where individual board replacement is part of maintenance.
- Supports cabinet-level troubleshooting by allowing the affected board to be isolated from other system components.
Working Principle
The DS200TCQCG1BJG operates as part of the Mark V RST electronic architecture. Its configured function depends on the surrounding Mark V boards and signal paths, with the board participating in the handling of the required control-system information.
A typical Mark V signal path can include field instrumentation, terminal boards, I/O electronics, interconnecting cables, processors, and associated control boards. The DS200TCQCG1BJG works within this chain rather than independently generating turbine control decisions.
During troubleshooting, the practical approach is to compare the expected system behavior with the actual board and signal conditions. If a related function is abnormal, technicians should inspect connectors, cables, terminal boards, adjacent Mark V electronics, and system diagnostics along with the DS200TCQCG1BJG itself.
Role in a Mark V Turbine Control Architecture
| System Element | Function |
|---|---|
| DS200TCQCG1BJG RST Overflow Board | Performs its configured overflow function within the Mark V RST architecture |
| Mark V Control Processors | Execute turbine control, sequencing, and protection logic |
| Mark V I/O Boards | Interface field measurements and status signals |
| Terminal Boards | Provide field termination and signal routing |
| Interconnecting Cables | Carry signals between cabinet boards and terminal interfaces |
| RST Control Hardware | Forms part of the redundant Mark V control structure |
| Operator Interface | Displays turbine operating information, alarms, and status |
| Turbine Field Equipment | Provides the physical process conditions monitored and controlled by Mark V |
Industrial Applications
| Application | Typical Use |
|---|---|
| Gas Turbine Control | Mark V turbine control cabinet operation and maintenance |
| Steam Turbine Systems | Legacy turbine control and monitoring |
| Power Generation | Replacement of individual Mark V electronic boards |
| Turbine Monitoring | Supporting the configured Mark V monitoring architecture |
| Turbine Protection | Board-level support within the broader protection system |
| Industrial Turbomachinery | Maintenance of Mark V-based turbine control systems |
| Legacy System Maintenance | Replacement of aging or failed Mark V boards |
Installation and Maintenance
- Verify the complete board number before replacement and distinguish DS200TCQCG1BJG from other DS200TCQCG-series variants.
- Confirm the cabinet position using the Mark V drawings and existing maintenance documentation.
- Follow the plant shutdown and electrical safety procedures before accessing the control cabinet.
- Record connector positions before removing the existing board to avoid incorrect reconnection.
- Inspect the board and connectors for physical damage, contamination, loose contacts, or signs of overheating.
- Check associated terminal boards when the reported problem involves a connected field signal or control path.
- Inspect interconnecting cables for damaged conductors, poor connections, or incorrect routing.
- Install the replacement board in the correct location and ensure that it is properly seated.
- Reconnect all associated interfaces carefully and compare the completed installation with the original cabinet documentation.
- Check board and system status after restoring power and verify that the Mark V system starts in the expected condition.
- Review turbine alarms and diagnostics to determine whether the original abnormal condition has been cleared.
- Document the replacement and functional checks for future maintenance, including the board number, cabinet location, affected function, and test results.
Compatible System Components
| Component | Function |
|---|---|
| GE Mark V Control Processors | Execute turbine control and protection functions |
| Mark V I/O Boards | Provide field signal interfacing |
| Mark V Terminal Boards | Terminate and distribute field signals |
| RST Control Hardware | Supports the redundant Mark V control architecture |
| Interconnecting Cables | Provide connections between control and interface hardware |
| Turbine Instrumentation | Supplies measurements and operating status |
| Operator Interface | Provides monitoring, alarm, and status information |
| Mark V Cabinet Hardware | Houses and supports the control-system electronics |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| GE DS200TCQCG1BJG | Mark V RST Overflow Board | RST control-system overflow function |
| GE DS200TCQCG1BHF | Mark V RST Overflow Board | RST control-system overflow function |
| GE DS200TCCAG2AJB | Mark V I/O TC2000 Analog Board | Analog signal interfacing |
| GE DS200TBAI41A | Mark V Analog I/O Board | Turbine analog signal processing |
| GE DS200TBQAG1A | Mark V I/O Terminal Board | Field signal termination |
| GE DS200SDCCG1A | Mark V Control Board | Mark V control and interface functions |
Key Advantages
- Mark V RST architecture integration
- Dedicated overflow-board function
- Board-level replacement capability
- Suitable for legacy turbine control systems
- Integrates with existing Mark V cabinet hardware
Technical FAQs
What is the GE DS200TCQCG1BJG used for?
The DS200TCQCG1BJG is a Mark V RST Overflow Board used within the electronic control and signal architecture of GE Mark V turbine control systems.
Is the DS200TCQCG1BJG a standalone turbine controller?
No. It is a board-level component within the Mark V architecture. Turbine control functions are distributed across the controller, I/O, terminal, interface, and related electronic hardware.
What should be verified when replacing this board?
Verify the exact board number, cabinet location, connector arrangement, associated cables, terminal hardware, and Mark V documentation. The board should be installed in the same intended configuration as the approved system design.
Why can a Mark V fault remain after replacing the overflow board?
The fault may originate elsewhere in the signal or control path. Terminal boards, interconnecting cables, adjacent Mark V boards, power conditions, and system configuration should all be checked when the same symptom remains after board replacement.