GE IS200VTURH2BAC is a VME-bus-based turbine control and protection board developed by General Electric (GE) for the Mark VIe series control systems. As a member of the Speedtronic product line, it serves as a core component to ensure the safe and stable operation of rotating machinery such as gas turbines and steam turbines.Integrating signal acquisition, condition monitoring, logic control and safety protection in one unit, it enables real-time monitoring of key turbine parameters including rotational speed, vibration, shaft voltage/current, and implements core protection functions such as overspeed trip and synchronization control. It thus provides reliable hardware support for the safe startup, shutdown and continuous operation of turbines.

Hardware Structure and Components

• Panel and IndicatorsIt adopts a double-width panel design and is equipped with 3 LED indicators (Fail/Status/Run). Secured by 3 screws, it facilitates on-site status observation.
• ConnectorsThere are 2 backplane connectors (P1/P2) and 4 external cable connectors, which support stable connection with the system backplane as well as external sensors and actuators.
• Core CircuitryIt is equipped with a Xilinx Spartan FPGA chip, over 50 integrated circuits (including RAM and SRAM), 13 transistors, 55 inductors (L1-L55), along with a large number of discrete components such as resistors and capacitors. This configuration ensures high speed and stability for signal processing and logic control.
• Mounting DesignCompliant with the double-width VME board standard, it features multi-position drilling for cabinet installation in Mark VIe systems. It supports hot swapping to facilitate maintenance and replacement.

Technical Specifications

• Power Input: 125VDC, compatible with industrial-grade high-voltage DC power supply systems to ensure power supply stability under extreme operating conditions.
• Signal Input: 4 channels of passive magnetic sensor speed signals, shaft voltage/current monitoring signals, synchronization signals, speed rate input, etc.
• Output Interface: 3 channels of main overspeed trip relay control signals, main circuit breaker closing control signals, alarm signals, etc.
• Operating Environment: Industrial-grade temperature range (-40℃ to 70℃). The anti-electromagnetic interference design complies with the reliability standards for industrial automation equipment.
• System Compatibility: Compatible with TMR (Triple Modular Redundancy) or Simplex configurations of the Mark VIe system. It can work collaboratively with modules such as TTUR, TRPG, TRPS and TRPL, adapting to different safety level requirements.

Application Scenarios

• Power Generation Sector: Applied to the control of gas and steam turbines in thermal power plants and gas-fired power stations, it ensures the safe operation of generating units and reduces the risk of unplanned shutdowns.
• Petrochemical Industry: Suitable for vibration and speed monitoring of rotating machinery such as compressors and pumps, meeting the requirements for continuous equipment operation in process industries.
• Energy Infrastructure: Serving as a core protection component in combined cycle power plants and distributed energy systems, it improves energy conversion efficiency and system reliability.

System Integration and Advantages

• Integration Flexibility: It can work collaboratively with the I/O interfaces of backup protection modules in the Mark VIe system, supports multiple sensor types, and adapts to the customized requirements of different turbine models.
• Safety Redundancy Design: It supports system-level Triple Modular Redundancy (TMR) configuration. The hardware circuit adopts isolation design, featuring strong independence between channels to prevent system failure caused by single-point faults.
• Software Compatibility: It seamlessly integrates with Mark VIe system software, supports online programming, parameter configuration and fault diagnosis, and enables full lifecycle management through the HMI interface.

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