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- DS200TCEBG1BAA
- MARK V Protection Terminal Expansion Board
- USA
- 233 × 20 × 197 mm
- 0.81 kg
- Xiamen, China
- New & In Stock
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Product Overview
The GE DS200TCEBG1BAA MARK V Protection Terminal Expansion Board is a specialized printed circuit board used in GE Mark V turbine control systems. The board is commonly identified as a Protective Termination Expander Board, or TCEB, and is designed to provide signal interfacing, termination, isolation, and expansion functions within the turbine control architecture.
The DS200TCEBG1BAA is particularly important in systems where protection and measurement signals must be transferred reliably between terminal boards, control boards, and other parts of the Mark V system. It provides multiple connectors and signal transformers that allow different signal paths to be properly interfaced.
In a typical Mark V installation, the board operates as an intermediate signal interface rather than as the main control processor. It works with other turbine control boards to handle signals associated with protection, measurement, flame detection, overspeed-related functions, and other control-system circuits.
Because the Mark V platform is widely installed in legacy gas turbine, steam turbine, and power-generation equipment, the DS200TCEBG1BAA remains an important spare part for maintenance and system restoration.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | GE |
| Model | DS200TCEBG1BAA |
| Product Series | MARK V DS200 |
| Product Type | Protection Terminal Expansion Board |
| Functional Acronym | TCEB |
| Function | Protective signal termination, expansion and interface |
| Dimensions | 233 × 20 × 197 mm |
| Weight | 0.81 kg |
| PCB Type | Industrial control circuit board |
| PCB Coating | Normal coating |
| Functional Revision 1 | B |
| Functional Revision 2 | A |
| Artwork Revision | A |
| Main Application | GE Mark V turbine control |
| Typical Equipment | Gas turbines, steam turbines and power-generation systems |
| Connectors | Bayonet, 26-pin, 10-pin and 20-pin connectors |
| Signal Transformers | 4 |
| Installation | Mark V control cabinet / rack assembly |
| System Role | Protection and control signal interface |
Function and Working Principle
The primary function of the DS200TCEBG1BAA is to provide a reliable interface for protection and control signals within a GE Mark V system.
The board contains several types of connectors and signal transformers. The signal transformers provide electrical signal interfacing and help improve compatibility between different signal circuits.
The board includes:
- 3 bayonet connectors
- 1 26-pin connector
- 4 10-pin connectors
- 3 20-pin connectors
- 4 signal transformers
The 20-pin connectors are associated with ribbon-cable signal paths between the TCEB and other Mark V boards. Connector identification is particularly important during maintenance because different connectors carry different signal groups.
The DS200TCEBG1BAA can be involved in the handling of PT and CT signals associated with turbine and generator monitoring. Protection-related signals, including signals associated with flame detection and emergency overspeed functions, can also pass through the TCEB portion of the Mark V architecture.
The general signal path can be understood as:
Field / Terminal Board → DS200TCEBG1BAA → Associated Mark V Control Board → Control and Protection Logic
The board therefore provides an important bridge between field-level signal connections and the processing sections of the turbine control system.
Role in Industrial Control Systems
The DS200TCEBG1BAA plays an important role in the signal interface architecture of the GE Mark V system.
A Mark V turbine control system consists of multiple boards and control cores. Different boards handle processor functions, signal conditioning, terminal connections, protection inputs, and monitoring.
The TCEB board supports the connection of these different signal paths.
It can be associated with:
- PT and CT signal circuits
- Flame detection signals
- Emergency overspeed signals
- Turbine protection circuits
- TCEA control boards
- TCCB boards
- PTBA terminal boards
- Mark V control processors
- Ribbon-cable signal interfaces
One important function is the handling of PT and CT signals used by other control boards. These signals can represent generator voltage, bus voltage, and line-current information required by the turbine control architecture.
The board also provides a pathway for protection-related signals to reach the appropriate processing and conditioning circuits.
Because the TCEB is part of the protection and measurement signal path, its condition can directly affect the quality and reliability of signals used by the turbine control system.
Industrial Applications
The GE DS200TCEBG1BAA is mainly used in industrial turbine control applications based on the GE Mark V platform.
Typical applications include:
- Gas turbine control systems
- Steam turbine control systems
- Power generation plants
- Generator control systems
- Turbine protection systems
- Industrial turbine packages
- Utility power-generation equipment
- Legacy GE Speedtronic control systems
The board is especially relevant to facilities that continue operating existing Mark V control systems.
Many legacy turbine systems remain in service for many years. In such installations, the ability to replace individual boards is important for reducing downtime and maintaining the original control architecture.
The DS200TCEBG1BAA can therefore serve as a maintenance spare when an existing TCEB board develops a hardware fault, connector problem, transformer failure, or other electrical issue.
Installation and System Integration
Correct installation is essential because the DS200TCEBG1BAA contains numerous connectors and signal paths.
Before removing an existing board, maintenance personnel should carefully document the connector arrangement and cable routing.
Recommended installation practices include:
- Confirm the complete board number before replacement.
- Verify the functional and artwork revision.
- Record all existing connector positions.
- Label ribbon cables before disconnecting them.
- Avoid pulling ribbon cables directly by their wires.
- Check connector orientation before installation.
- Install the replacement board in the original mounting position.
- Maintain the original cable routing.
- Inspect connectors for contamination or physical damage.
- Verify signal connections before system startup.
The ribbon cables connected to the 20-pin connectors require particular care. Their fine conductors can be damaged by excessive pulling or bending.
Cable routing is also important. Ribbon cables should remain in their original paths because inappropriate routing can increase the possibility of electrical interference.
After installation, the associated protection and measurement signals should be checked before returning the turbine control system to normal operation.
Compatible System Components
The DS200TCEBG1BAA does not normally operate as an independent control device. It works as part of a larger Mark V turbine control architecture.
Common associated components include:
| Component | Function |
|---|---|
| TCEA Board | Processes and conditions signals associated with the TCEB architecture |
| TCCB Board | Receives and processes relevant PT and CT signals |
| PTBA Terminal Board | Provides field-side terminal and signal connections |
| Mark V Control Processor | Executes turbine control and protection logic |
| Ribbon Cable Assemblies | Transfer signals between control boards |
| Protection Devices | Provide turbine protection signals |
| Flame Detection Equipment | Supplies flame-related signals |
| Overspeed Protection Circuits | Provide emergency speed-related protection signals |
The exact configuration depends on the turbine model and the Mark V system architecture.
For replacement purposes, it is important to match the original board rather than assuming that all TCEB boards are interchangeable.
Recommended Alternative Models
The following models may be considered when maintaining related GE Mark V TCEB applications. Compatibility must be confirmed against the original system configuration.
| Model | Type | Key Feature | Application |
|---|---|---|---|
| DS200TCEBG1BAA | Protection Terminal Expansion Board | B/A/A revision configuration | GE Mark V turbine control |
| DS200TCEBG1A | Protection Terminal Expansion Board | Earlier TCEB configuration | Legacy Mark V systems |
| DS200TCEBG1B | Protection Terminal Expansion Board | B functional revision | Applicable Mark V installations |
| DS200TCEBG1ABC | Protective Termination Expander Board | Different revision configuration | Mark V turbine control and protection |
| DS200TCEBG1 | TCEB Base Board | Original TCEB design | Mark V maintenance and replacement |
These models should not be treated as automatic drop-in replacements. Differences in board revision, connector configuration, signal assignment, and turbine application can affect compatibility.
For a direct replacement, DS200TCEBG1BAA is the preferred identification when the existing system specifies this exact board.
Key Advantages
The GE DS200TCEBG1BAA offers several advantages for Mark V turbine control applications:
- Provides protection signal termination and expansion
- Supports PT and CT signal interfacing
- Includes multiple signal transformers
- Provides multiple connector interfaces
- Supports flame detection signal paths
- Supports emergency overspeed-related signal paths
- Integrates with GE Mark V turbine control architecture
- Helps organize complex turbine signal wiring
- Suitable for legacy power-generation systems
- Useful as a maintenance and replacement spare
Its combination of signal transformers and multiple connector interfaces allows the board to support several important signal paths within the turbine control system.
Technical FAQs
What is GE DS200TCEBG1BAA?
The GE DS200TCEBG1BAA is a Protection Terminal Expansion Board used in GE Mark V turbine control systems.
What does TCEB mean?
TCEB refers to the Terminal / Protective Termination Expander Board function within the Mark V architecture.
What is the main function of DS200TCEBG1BAA?
It provides signal termination, expansion, isolation, and interfacing functions for protection and measurement signals within the Mark V control system.
What are the dimensions of DS200TCEBG1BAA?
The specified dimensions are 233 × 20 × 197 mm.
How much does DS200TCEBG1BAA weigh?
The specified weight is 0.81 kg.
How many signal transformers does the board have?
The DS200TCEBG1BAA has four signal transformers.
What connectors are installed on the DS200TCEBG1BAA?
The board includes three bayonet connectors, one 26-pin connector, four 10-pin connectors, and three 20-pin connectors.
What signals can pass through the TCEB board?
Depending on the Mark V configuration, the board can handle PT and CT signals as well as signals associated with flame detection, emergency overspeed, and other protection functions.
Is DS200TCEBG1BAA a processor board?
No. It is primarily a signal termination and expansion interface board. Processing functions are performed by other Mark V control hardware.
Can DS200TCEBG1A replace DS200TCEBG1BAA?
Not automatically. Different revisions can have different configurations. The complete part number and system application should be verified before replacement.
What should be checked before replacing the board?
Engineers should check the complete board number, revision, connector arrangement, ribbon-cable routing, terminal assignments, and the turbine’s Mark V configuration.
Conclusion
The GE DS200TCEBG1BAA MARK V Protection Terminal Expansion Board is an important signal-interface component used in GE turbine control and protection systems. It provides terminal expansion, signal interfacing, and transformer-based signal isolation for several important turbine control circuits.
With dimensions of 233 × 20 × 197 mm and a weight of 0.81 kg, the board is designed for integration into industrial Mark V control assemblies.
Its multiple connectors and four signal transformers allow it to handle a variety of signals associated with turbine monitoring and protection, including PT and CT circuits and other protection-related signal paths.
For maintenance engineers and spare-parts procurement teams, accurate board identification is essential. The DS200TCEBG1BAA should be matched according to its complete part number, revision, connector configuration, and the existing GE Mark V system.
When correctly installed, the board provides a reliable interface between field-related protection signals and the control hardware responsible for turbine monitoring and protection.