IS200WREAS1B - Turbine Emergency Trip option board

IS200WREAS1B - Turbine Emergency Trip option board IS200WREAS1B - Turbine Emergency Trip option board

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Part No.: IS200WREAS1B
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Size: 33.0 cm high x 17.8 cm, wide
Technology: Surface mount
Temperature: -30 to 65oC
MPU pulse rate range: 2 Hz to 20 kHz
MPU pulse rate accuracy: 0.05 percent
Product Type: Aero derivative Turbine Emergency Trip option board
Availability: In Stock
Series: Mark VIe

Functional Description

IS200WREAS1B is an Aero derivative Turbine Emergency Trip option board developed by GE. It is a part of Mark VIe control system. The Aero derivative Turbine Emergency Trip (TREA) terminal board, when paired with the WREA option card, integrates seamlessly with PPRA turbine I/O packs within the Mark VIe system.


  • Aligning the Boards: Ensure the two connectors are aligned correctly with those on the terminal board. When looking at the WREA, identify the bottom of the board, which is where the row of configuration jumpers is located. The connectors are designed with keying mechanisms that ensure they will only mate properly when aligned correctly.
  • Seating the Connection: Once the boards are aligned correctly, firmly press on the four screw heads surrounding the connector area. This action secures the connection between the WREA and the terminal board, ensuring a reliable electrical connection and mechanical stability.

Contact Inputs

  • The module plays a critical role in managing contact inputs within the system by providing essential wetting power through its JH1 connector. This connector features specific pin configurations to ensure reliable distribution of power: Pin 1 supplies positive wetting voltage, Pin 2 serves as the ground connection, and Pin 3 is designated for negative or return wetting voltage. These precise connections are crucial for maintaining consistent signal integrity across all contact inputs.
  • On the terminal board, contact inputs are facilitated through screw terminals that are strategically designed for efficient connectivity and operation. Odd-numbered terminals, known as PWET terminals, directly receive input power from JH1 Pin 1. These PWET terminals are interconnected, allowing for simplified wiring configurations where a single wire can be used to connect to remote contacts.
  • Meanwhile, even-numbered terminals on the TREA, such as TRP1L through TRP4L, are associated with individual voltage detectors. These terminals share a common return path to JH1 Pin 3, ensuring accurate and reliable feedback signals from the contacts to the system. This setup not only enhances operational efficiency but also simplifies installation and maintenance procedures, facilitating effective management of contact inputs crucial for the overall functionality of the Mark* VIe system.

The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS200WREAS1B?
It is an aero derivative turbine emergency trip option board developed by GE under the Mark VIe series.

Can the WREA and TREA modules be used in different configurations or systems?
Yes, the WREA and TREA modules are designed for versatility and can be adapted to different configurations within the Mark* VIe system or similar setups. Their modular design and standardized connectivity allow for flexible deployment based on specific application requirements.

How critical is proper alignment and seating of the module with the TREA terminal board?
Proper alignment and seating of the module with the TREA terminal board are crucial for ensuring secure connections and reliable operation. The connectors are designed to align and mate securely, facilitating robust electrical contact and minimizing potential issues during operation.

What safety measures should be considered when working with the modules?
When handling the modules, ensure power is properly disconnected to prevent electrical hazards. Follow manufacturer guidelines for installation, including torque specifications for screw terminals and ensuring all connections are securely seated to maintain safety and reliability.