GE DS200TBCAG2A RTD Termination Module

الوصف

The GE DS200TBCAG2A RTD Termination Module is an updated version of the RTD termination board used in the General Electric Mark V Speedtronic Turbine Control System.¹

Its core function is to provide the physical termination point for multiple Resistance Temperature Detector ($\text{RTD}$) field-wiring inputs before relaying these signals to the analog processing board.

Key Functions and Specifications

The $\text{DS200TBCAG2A}$ (Functional Acronym: TBCA) is an integral part of the turbine’s data acquisition system.

• Primary Function: It acts as a termination and interface board for temperature signals from ²$\text{RTD}$ sensors (typically ³$3$-wire $\text{RTD}$s) installed on the gas or steam turbine and generator (e.g., measuring bearing, winding, or exhaust temperatures).⁴

   

• Input Capacity: The board is designed to handle 30 total inputs for ⁵$3$-wire $\text{RTD}$s.⁶

   

• Signal Routing: It connects to the central Common Analog $\text{I/O}$ Board (TCCA), which is responsible for signal conditioning, scaling, and analog-to-digital conversion.
  • $\text{RTD}$ signals ⁷$\text{1-15}$ are routed through the JCC connector.⁸

     

  • $\text{RTD}$ signals ⁹$\text{16-30}$ are routed through the JDD connector.¹⁰

     

• Physical Features: The board features multiple terminal blocks for connecting the field wires and two ¹¹$50$-pin connectors for ribbon cables that link it to the ¹²$\text{TCCA}$ board.¹³

   

• System Location: In the ¹⁴$\text{Mark V}$ control panel, the ¹⁵$\text{TBCA}$ module is typically located in a designated position within the ¹⁶$\text{R5}$ core, working in tandem with the ¹⁷$\text{TCCA}$ board.¹⁸

   

• Hardware Configuration: A notable detail for the ¹⁹$\text{TBCAG2A}$ revision is that it does not contain any hardware jumpers, relying solely on system configuration software for setup.²⁰

   

Revision Significance

The part number $\text{DS200TBCAG2A}$ signifies a key difference from the $\text{DS200TBCAG1A}$ version:

• G2 Designator: The “G2” in the part number indicates that this board belongs to the second grouping of ²¹$\text{Mark V}$ series products.²² This often means subtle changes in component layout, manufacturing processes, or minor enhancements over the $\text{G1}$ grouping boards.

   

• A Revision: The final “²³$\text{A}$” indicates the functional revision level within the ²⁴$\text{G2}$ hardware group.²⁵