GE IS200VRTDH1C MKVI,VME RTD Card

الوصف

The GE IS200VRTDH1C is a VME RTD Card for the Mark VI series of GE’s Speedtronic Gas Turbine Control Systems. This specialized board, often called a VRTD card, is designed to interface directly with Resistance Temperature Detectors (RTDs) to accurately measure temperature at various points on the turbine. The ‘C’ suffix indicates an updated or later revision of the board, which may include minor improvements or component changes compared to earlier ‘A’ or ‘B’ versions.

Key Features and Functionality

The IS200VRTDH1C provides a reliable and accurate interface for temperature measurement, which is crucial for turbine control and protection. Here’s a breakdown of its primary functions:

• RTD Interface: The card is specifically engineered to receive signals from multiple RTD sensors. RTDs are temperature sensors that measure temperature based on the change in electrical resistance of a material (typically platinum). They are highly accurate and are used to monitor temperatures in critical areas such as bearings, exhaust gases, and windings.
• High-Resolution Measurement: The VRTD card has a high-resolution Analog-to-Digital Converter (ADC) to ensure accurate conversion of the RTD’s resistance signal into a digital value. This precision is essential for maintaining tight control over turbine parameters and for early detection of temperature-related issues.
• Dedicated Processor: The card has a dedicated on-board processor that handles the signal conditioning and linearization required for RTD measurements. This offloads the intensive computational task from the main Mark VI controller, ensuring that the control system’s performance remains unaffected.
• VMEbus Interface: The card is designed to plug directly into the VME backplane of a Mark VI rack. This allows for high-speed communication with the main controller and other VME cards in the system, ensuring that temperature data is available in real-time.
• TMR Support: The IS200VRTDH1C supports Triple Modular Redundancy (TMR) systems. In a TMR setup, three separate VRTD boards are installed, each taking a measurement from the same RTD. The main controller then performs a voting process to ensure accuracy and reliability, which is critical for safety-related temperature trips.

Technical Specifications