GE IS200VVIBH1C MKVI,VME Vibration Card

الوصف

The GE IS200VVIBH1C is a VME Vibration Input Card for the Mark VI series of GE’s Speedtronic Gas Turbine Control Systems. This specialized board, also known as a VVIB card, is designed to interface with various vibration sensors to monitor and protect rotating machinery. It works in conjunction with a terminal board, such as the TVIB or DVIB, to provide a comprehensive vibration monitoring solution. The ‘C’ suffix indicates an updated or later revision of the board, which may include minor improvements or component changes compared to earlier versions.

Key Features and Functionality

The VVIBH1C is a crucial component for machine health monitoring. Its primary functions include:

• Vibration Monitoring: The card receives analog signals from a variety of vibration probes, including proximity probes, accelerometers, seismic sensors, and velocity probes. These sensors are used to measure shaft vibration, bearing vibration, and casing vibration, providing critical data for diagnosing machine health.
• Signal Processing: The VVIB card processes the incoming analog signals, performing tasks such as signal conditioning, filtering, and digitizing. It samples inputs at high speeds (up to 4600 samples per second) to ensure accurate readings. It then sends this processed data to the main Mark VI controller via the VMEbus for analysis.
• Protection: The card is a key part of the turbine’s protection system. It can be configured to trigger a trip (shutdown) of the turbine if vibration levels exceed predefined safe limits, thereby preventing catastrophic mechanical failure.
• TMR Support: The IS200VVIBH1C supports Triple Modular Redundancy (TMR) systems. In a TMR setup, three separate VVIB cards are installed, each receiving the same signal from the vibration sensor. The system then uses a voting process to ensure accuracy and reliability, which is vital for safety-critical applications.
• Diagnostics: The board’s faceplate features LED indicators for its operational status, including RUN (green), FAIL (red), and STATUS (orange), making it easier to troubleshoot.

Technical Specifications