GE DS200TCCBG3BED

Product Overview

The DS200TCCBG3BED is a Common Extended Analog I/O Board (TCCB) designed for the GE Speedtronic Mark V LM Gas Turbine Control System.  GE DS200TCCBG3BED is a critical component within the  I/O core, functioning as an expansion unit that provides scaling, conditioning, and processing for a wide array of critical analog signals not handled by the primary Common Analog I/O Board (TCCA).    DS200TCCBG3BED primary role is to interface with high-value power system signals, such as generator/bus voltages and line currents, as well as additional RTD and mA inputs, making it essential for comprehensive turbine monitoring and control.

The "G3BED" suffix indicates a specific hardware revision or variant, ensuring compatibility and performance within a defined Mark V LM system configuration.   GE DS200TCCBG3BED acts as a data acquisition hub, converting raw field instrument signals into precise, digital data for the system's I/O Engine and Control Engine.

Product Features

Multi-Range mA Input Processing: GE DS200TCCBG3BED provides dedicated circuitry for 4–20 mA and 0–1 mA analog input signals. DS200TCCBG3BED reads these signals from the TBCB terminal board, converts the current to a voltage drop across a burden resistor, and conditions the signal for digital reading by the I/O Engine.

RTD Temperature Monitoring: GE DS200TCCBG3B supplies excitation current to RTDs connected via the TBCB terminal board. DS200TCCBG3BED precisely measures the resulting voltage change caused by resistance variation, enabling accurate temperature measurement for critical components.

Generator and Bus Voltage Monitoring: The TCCB board scales and conditions high-voltage signals from Potential Transformers (PTs) that monitor the generator and bus voltages. This is fundamental for synchronization and power management.

Line Current Monitoring: GE DS200TCCBG3BED processes signals from Current Transformers (CTs) to monitor line current.   Together with voltage data, this allows the system to calculate real-time power metrics.

Power System Calculation: The conditioned PT and CT signals are used by the system to define phase relationships and calculate critical power system parameters, including:

Generator Megawatts (MW)

Power Factor (PF)

Volt-Ampere Reactive (VARs)

Hardware-Configurable Operation: GE DS200TCCBG3BED's functionality is heavily defined by hardware jumpers, which set parameters for voltage and current monitoring ranges, eliminating reliance on software for these critical safety and control functions.

Comparison with Similar Products

Within the Mark V LM <RS> core, the TCCB board works alongside the TCCA board. A comparison clarifies their distinct roles:

Applicable Industry Scope

The DS200TCCBG3BED is exclusively designed for heavy-duty industrial applications involving GE gas and steam turbines, including:

Power Generation:

Gas Turbine Power Plants: GE DS200TCCBG3BED For precise monitoring of generator output and synchronization with the electrical grid.

Steam Turbine Power Plants: GE DS200TCCBG3BED For load control and protection.

Combined Cycle Power Plants: Integral to the coordinated control between gas and steam turbine sections, optimizing overall plant efficiency and grid compliance.

Oil & Gas Industry:

GE DS200TCCBG3BED used in turbine-driven compressor and pump stations on pipelines, where monitoring electrical drive power is crucial for process stability and protection.