The Mark V Primary Turbine Protection board IS200VTURH1BAC was manufactured by General Electric. This model is the first of two board groups, VTURH1. The IS200VTURH1BAC model drives three trip solenoids using one of the TRPx boards and will accept eight flame detectors.
The General Electric IS200VTURH1BAC is a high-performance turbine control module designed to provide precise and reliable control for steam, gas, and hydro turbines. As a critical component of GE's Mark VIe control systems, it offers robust functionality to ensure optimal turbine performance, enhance operational efficiency, and reduce downtime. With advanced diagnostic capabilities and industry-leading features, this module is widely utilized in various power generation and industrial applications.

IS200VTURH1BAC Technical Specifications

Board Number: IS200VTURH1BAC
Series: Mark VI IS200
Manufacturer: GE Industrial Systems, General Electric Company US
Functional Acronym/Abbreviation: VTUR
Model Type: Protection Board
Functional Description: Primary Turbine Protection
Boards Supported with the VTUR: TRPG, TRPL, TREG, and TRPS
MPU Pulse Rate Range: 2 Hz to 20 kHz
MPU Pulse Rate Accuracy: 0.05% of Reading
Number of Trip Solenoids: 3
Contact Voltage Sensing: 20 V dc for HI and 6 V dc for LO
Functional Description
IS200VTURH1BAC is a Turbine Specific Primary Trip Board developed by GE. It is a part of Mark VI control system. The control function oversees three key overspeed trip relays situated on the terminal board. Triggered by the controller, the trip signal is relayed before reaching TRPG to initiate the activation of emergency solenoids. The turbine's overspeed trip command may originate from either VTUR or VPRO. TRPG accommodates nine magnetic relays tasked with interfacing with three trip solenoids, referred to as Electrical Trip Devices (ETD). In TMR systems, all nine relays are engaged, whereas in simplex systems, only three are utilized.
Frequently Asked Questions about IS200VTURH1BAC
What is the IS200VTURH1BAC? What is it used for?
The IS200VTURH1BAC model is a Turbine Specific Primary Trip board. It is used for controlling three primary overspeed trip relays on one of the TRPx terminal boards. The controller will generate the trip signals and send them to the VTUR module and then to the TRPx for tripping of the emergency solenoids. The trip signals on the Mark VI system can either be tripped by this model or the VPRO board.
The IS200VTURH1BAC board can be used in simplex or triple modular redundant (TMR) systems; how many relays are used in each system?
When the VTUR board is used in a simplex system, the board will use nine relays, and a TMR system will use three relays.
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