GE IS200VRTDH1D MKVI, VME RTD Card

الوصف

The GE IS200VRTDH1D is a VME RTD Card for the Mark VI series of GE’s Speedtronic Gas Turbine Control Systems. This specialized board, also known as a VRTD card, is designed to interface with Resistance Temperature Detectors (RTDs) to precisely measure temperature at various points on the turbine. The ‘D’ suffix indicates it is a later revision of the board, likely incorporating minor improvements or component updates.

Key Features and Functionality

The IS200VRTDH1D is a crucial component for temperature monitoring and protection in a turbine control system. Its main functions include:

• RTD Interface: The card is engineered to receive signals from multiple RTD sensors. RTDs are highly accurate temperature sensors that measure temperature by detecting changes in electrical resistance. They are commonly used to monitor critical temperatures such as bearing temperatures, exhaust gas temperatures, and generator winding temperatures.
• High-Resolution Measurement: The board uses a high-resolution Analog-to-Digital Converter (ADC) to accurately convert the RTD’s resistance signal into a digital value. This precision is essential for tight control and for detecting potential issues early.
• Dedicated Processor: The card has its own dedicated processor to handle signal conditioning and linearization. This offloads the computational work from the main Mark VI controller, ensuring that the control system’s performance remains unaffected by the continuous stream of temperature data.
• VMEbus Interface: The card plugs directly into the VME backplane of a Mark VI rack, allowing for high-speed communication with the main controller and other VME cards.
• Triple Modular Redundancy (TMR) Support: The IS200VRTDH1D is designed for both Simplex and TMR configurations. In a TMR system, three separate VRTD boards are installed, each taking a measurement from the same RTD. The system then uses a voting process to ensure accuracy and reliability, which is vital for safety-related temperature trips.

Technical Specifications