IS200EPSDG1A

Product Description

The IS200EPSDG1A is a component created by GE for the Mark VI series.  The MKVI is part of General Electric’s Speedtronic steam/gas turbine management systems, which have been in production since the first Mark I system was sold in the 1960s.   The Mark VI, the fifth commercially released system in the Speedtronic line, is built with a PC-based operator interface that uses a Windows platform and is preloaded with proprietary software designed for the management of heavy-duty turbine systems, such as GE Control System Toolbox and CIMPLICITY.  

The IS200EPSDG1A is a small PCB component that is used to modify the input power path of the Exciter Power Supply Module (EPSM) in order to allow that board to take higher voltages.  The IS200EPSDG1A also provides a fuse between the regulator power source (DC link) and the buck-regulator. This auxiliary board is designed with one backplane connector and one fuse (high voltage) mounted to the board using two flame-resistant inline fuse holders.   The board has two lines of small metal components marked “1” and “2” surrounded by a box marked “P3D.” The IS200EPSDG1A connects to the motherboard (EPSM) via four screws inserted through factory-drilled holes in the EPSD into standoffs. The IS200EPSDG1A carries the board ID number, the GE logo, and several reference designators for components.

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