GE DS200TBCAG1A RTD Termination Module

الوصف

The GE DS200TBCAG1A RTD Termination Module is a critical interface board used in the General Electric Mark V Speedtronic Turbine Control System.¹

Its primary function is to serve as the physical connection point for ²$\text{RTD}$ (Resistance Temperature Detector) sensor inputs and to transmit those signals to the main control card.³

Function and Purpose

The $\text{DS200TBCAG1A}$ (functional acronym TBCA, which stands for Termination Board – C Analog) performs the following key functions:

1. RTD Input Termination: It provides the terminal blocks where the field wiring from multiple RTD temperature sensors is physically connected. These $\text{RTD}$ sensors (typically $\text{PT100}$ or $\text{PT1000}$) are placed on the turbine or generator to measure critical component temperatures (like bearing temperature or winding temperature).
2. Signal Routing: The module routes these low-level analog temperature signals to the associated Common Analog I/O Board (TCCA, such as the ⁴$\text{DS200TCCAG1A}$) via internal ribbon cables and connectors (JCC and JDD).⁵ The $\text{TCCA}$ board is the card that actually performs the signal conditioning, scaling, and conversion to digital data for the turbine controller.

    

3. Channel Capacity: The ⁶$\text{DS200TBCAG1A}$ is typically configured to handle up to 30 inputs for 3-wire RTDs.⁷ These inputs are often divided between the two main connectors (e.g., signals 1-15 on ⁸$\text{JCC}$ and 16-30 on ⁹$\text{JDD}$).¹⁰

    

4. System Location: In the ¹¹$\text{Mark V}$ system, this board is usually located in a specific rack or core (often referenced as the “R5” core) to maintain proximity and integrity with its corresponding ¹²$\text{TCCA}$ processing board.¹³

    

In short, the $\text{TBCAG1A}$ is the robust “front-end” that takes the delicate temperature sensor wiring from the field and presents it neatly to the $\text{Mark V}$‘s electronic intelligence.

Part Number Breakdown

The component’s full part number, $\text{DS200TBCAG1A}$, indicates its design and revision: