The IS200STURH4A is a PCB board component created by General Electric for use within the Mark VI or Mark VIe system. These management platforms are used for the management of heavy-duty gas and steam turbines.
The IS200STURH4A functions as a Simplex Primary Turbine Protection Input terminal board. This is a simplex S-type terminal board version of the TTUR board that provides connection to drive a primary trip board.
The IS200STURH4A is used in generator drive systems that require overspeed and primary synchronization, in mechanical drives that need overspeed protection but no synchronizing function, and for other applications that require the four pulse input circuits located on the PTUR board. The STUR board has the same physical size, I/O pack mounting, and customer terminal locations as other terminal boards.
The IS200STURH4A can accept up to four-speed input signals. It includes a DC-62 pin connector to mount a single PTUR I/O pack. It also has a DC-37 pin cable connector for connection to various boards (TPRG/TPRL/TPRS/TPRA.) The board has a 48-screw terminal strip located along one edge. It also has two relay outputs for primary synchronization, and it can accept two PT inputs for primary synchronization as well. The board has no provision for an emergency stop circuit and needs an external test signal for speed input testing. The board has no jumpers or configurable hardware.
The IS200STURH4A is typically installed via screw mounts to a cabinet after it has been mounted to a sheet metal carrier. The board is factory drilled to allow for this mounting option.