GE DS200TCEBG1A MKV, Common Circuits Card

الوصف

The GE DS200TCEBG1A is a Protective Termination Expander Board for the Mark V Speedtronic turbine control system. Despite its general name of “Common Circuits Card,” its function is highly specialized: to condition and expand the analog signals from specific sensors, primarily Current Transformers (CTs) and Potential Transformers (PTs), for use by other boards in the system.

Technical Breakdown 🧠

This card is a multi-purpose component that plays a vital role in data acquisition and system protection.

• Signal Conditioning & Expansion: The TCEB board is designed to receive and process a variety of signals. Most notably, it scales and conditions the PT and CT signals used by the TCCB board in the control core. It acts as an expander, allowing the system to handle a greater number of these specialized signals for comprehensive generator and power system monitoring.
• Emergency & Protection Signal Gateway: The board also serves as a crucial gateway for high-priority signals. It receives inputs for emergency overspeed and flame detection from terminal boards (like the PTBA board) and passes them to the TCEA board for processing. This ensures that critical safety functions are handled with the highest priority and reliability.
• System Integration: The DS200TCEBG1A is located in the P Core (Protection Core) of the Mark V system, a central position that allows it to interface with multiple other boards. It has a variety of connectors (including bayonet, 26-pin, and 10-pin connectors) for linking to other modules and terminal boards.
• On-Board Diagnostics: A unique feature of this board is the inclusion of an on-board audible alarm horn. This horn provides an immediate, localized alert for operators in the event of a system fault or a triggered alarm, complementing the main operator interface.

Applications 🏭

The DS200TCEBG1A is an essential part of Mark V turbine control systems, especially in applications where:

• Comprehensive generator and power system parameters need to be monitored.
• Signal expansion from PTs and CTs is required for greater I/O density.
• High-speed, redundant protection for critical trip functions like overspeed and flame detection is paramount.
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