Mark VI Series IS200VTURH1B Main Turbine Protection Plate
The IS200VTURH1B is GE’s main turbine protection plate for the Mark VI system.
The Mark VI is one of several gas/steam turbine management systems released by GE as part of the “Speedtronic” family.
The MKVI is built on a TMR (Triple Modular Redundancy) architecture and features a connected HMI (Human Machine Interface) that allows the user to access turbine data from a central location.
The IS200VTURH1B provides a variety of functions including monitoring the sensing shaft current/voltage (overshoot alarm), the
measuring turbine speed to generate a primary overspeed trip, and controlling the three primary overspeed trip relays belonging to the TRPx terminal board.
The board also monitors eight Geiger-Mueller flame detectors on the gas turbine.
The IS200VTURH1B has an attached single-slot panel with three LED indicators and a cable connector (J5).
The panel is connected to the PCB by three screw connections. the PCB consists of more than 60 integrated circuits, 13 transistors, hundreds of capacitors and resistors, as well as diodes and inductive coils.
The board has two backplanes, a multi-position female plug for connecting daughter boards, and several connectors made of conductive dots and traces.
The board is factory drilled in several locations to provide mounting options, including four holes for standoffs to support the previously mentioned daughter boards.
The board is labeled with codes such as 6BA01. 94V-0. and Type 6.
See the Mark VI Turbine Control System Guide (GEH-6421) for more information on the operation, installation, and function of the IS200VTURH1B.