SPECIFICATIONS
Part No.: IS215VPROH1BB
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Input Supply: 125 vdc
Frame Rate: Upto 100Hz
Product Type: Turbine Protection Board
Availability: In Stock
Series: Mark VI
Functional Description
IS215VPROH1BB is a turbine protection board developed by GE. It is part of the Mark VI series. The Turbine Protection Board and its associated terminal boards (TPRO and TREG) constitute an independent emergency overspeed protection system designed to safeguard the turbine's operation.
Redundancy and System Structure
- The protection system comprises triple redundant VPRO boards housed in a dedicated module, distinct from the primary turbine control system.
- These boards oversee and regulate trip solenoids via the TREG terminal board. The figures depict the cabling configuration linking VPRO to TPRO and TREG terminal boards.
Communication and Connectivity
- VPRO is equipped with an Ethernet connection, facilitating IONet communications with the control modules, enhancing data exchange and system integration capabilities.
Emergency Trip Functionality
- Within the Protection Module P, the board assumes responsibility for executing the emergency trip function.
- It supports the connection of up to three trip solenoids between the TREG and TRPG terminal boards.
Trip Solenoid Power Supply
- TREG supplies the positive side of the 125 V DC power to the solenoids, while TRPG provides the negative side.
- Either of these boards holds the capability to initiate the turbine trip.
Overspeed Protection and Emergency Stop Functions
- VPRO plays a critical role in providing emergency overspeed protection and executing emergency stop functions. It takes charge of the 12 relays located on the TREG board. Among these relays, nine are organized into three groups of three, forming a voting system to control inputs and govern the operation of the three trip solenoids.
- The architecture and functionalities of the VPRO, TPRO, and TREG boards collectively ensure a robust and redundant emergency protection system, guaranteeing swift and decisive actions in critical scenarios to maintain the turbine's safe operation.
Redundancy and Independence of Protection Module
- The protection module constitutes a triple redundant system, housing three distinct and autonomous boards named R8, S8, and T8 (previously labeled X, Y, and Z). This setup ensures continuous and reliable operation, even in the event of a failure or maintenance requirements for any individual board.
- Remarkably, any of these boards can be powered down and replaced while the turbine remains operational, safeguarding the integrity of the protection system.
Individual Board Composition
- Each VPRO board is self-contained, equipped with its own set of essential components, including an I/O interface, processor, dedicated power supply, and Ethernet communications (IONet) interfacing with the controller.
- This self-contained nature empowers each board to function independently without reliance on the others, enhancing system resilience.
Communication Capabilities and Functionalities
- The communication capabilities embedded within the board facilitate various critical functionalities.
- They enable the initiation of test commands from the controller to the protection module and allow continuous monitoring of Emergency Overspeed (EOS) system diagnostics. These diagnostic updates are accessible both on the controller and the operator interface, ensuring comprehensive system oversight and maintenance.
VME Interface and Safety Measures
- While the board incorporates a VME (Versa Module Eurocard) interface for programming and testing within a VME rack, a safety protocol is in place. When the VPRO board is inserted into the protection module, the backplane is neutralized. This measure effectively severs any continuity between the three independent sections, ensuring absolute isolation and preventing interference or interlinking that could compromise the autonomous functionality of each VPRO board.
- The board serves as the core component, or the "heart," of this protection system, orchestrating critical functions while maintaining the crucial autonomy and isolation of each redundant unit. This robust setup guarantees continuous and reliable operation of the turbine protection system even under demanding circumstances.
The WOC team is always available to help you with your Mark VI requirements. For more information, please contact WOC.
Frequently Asked Questions
What is IS215VPROH1BB?
It is a turbine protection board developed by GE under the Mark VI series.
What is the standard indication for the VPRO board during normal operation?
The board displays a flashing green LED, indicating a normal operational state.
How is a failure condition represented on the VPRO board?
A failure condition is denoted by a solid red LED on the board.
What does the orange STATUS LED signify?
The STATUS LED normally remains off but illuminates steadily in orange if a diagnostic alarm condition occurs within the board.
