🔹 Product Description

The GE DS200TCEBG1B is a Protective Termination Expander Board for the GE Speedtronic Mark V turbine control system. The board is identified by the functional acronym TCEB and is used in the Mark V P1 core to interface and scale PT and CT signals associated with the TCCB circuitry. These signals include generator and bus voltage and line-current measurements originating at the PTBA terminal board. The board also provides signal routing between related Mark V termination and control boards. The associated assembly designation is DS200TCEBG1BAA, representing the B functional revision with additional artwork/assembly revisions.

🔹 Product Datasheet

The DS200TCEBG1B has three bayonet connectors, four signal transformers, one 26-pin connector, four 10-pin connectors, and three 20-pin connectors. The signal transformers provide signal compatibility between connected devices. The board itself does not use hardware jumpers for configuration, and available technical references indicate no software configuration is performed directly on the TCEB board.

🔹 Key Features

• GE Mark V Speedtronic Protective Termination Expander Board
• Functional acronym TCEB
• B-level functional revision
• Designed for Mark V turbine control applications
• Installed in the P1 core
• Scales PT and CT signals used by TCCB circuitry
• Interfaces with signals from the PTBA terminal board
• Supports generator and bus voltage signal paths
• Supports line-current signal paths
• Three bayonet connectors
• Four onboard signal transformers
• One 26-pin connector
• Four 10-pin connectors
• Three 20-pin connectors
• No board-level hardware jumper configuration
• Suitable for legacy Mark V maintenance and replacement

🔹 Frequently Asked Questions

Q1: What is the DS200TCEBG1B used for?
The DS200TCEBG1B is a Protective Termination Expander Board used in GE Mark V turbine control systems for PT/CT signal scaling and signal routing between termination and control boards.

Q2: What does TCEB stand for?
TCEB is the functional acronym associated with the Protective Termination Expander Board.

Q3: What is the difference between DS200TCEBG1B and DS200TCEBG1BAA?
DS200TCEBG1B identifies the functional board and B revision, while DS200TCEBG1BAA is the associated complete assembly/revision designation. The complete hardware marking should be compared with the existing board before replacement.

Q4: Which Mark V core contains this board?
Technical references identify the TCEB as being installed in the P1 core, location 2.

Q5: What signals does the TCEB process?
The board scales PT and CT signals used by TCCB circuitry. These signal paths can include generator and bus voltages and line current.

Q6: Does the board require jumper or software configuration?
Available documentation indicates that the TCEB board does not have hardware jumpers for configuration and does not have board-level software configuration. The complete Mark V system configuration should still be verified before installation.

Q7: Is the DS200TCEBG1B a current-production board?
It is a legacy Mark V component. It is generally sourced as surplus, replacement, refurbished, or existing spare inventory for installed Mark V systems.

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