The IS200EPDMG1BAA is a rectangular board component made by General Electric as part of the Mark VI gas/steam turbine control system. The Mark VI is one of several turbine control systems marketed under the Speedtronic name since the 1960s. This iteration includes Ethernet capabilities and can be built to offer Simplex or TMR (triple modular redundant) control depending on the size and complexity of the associated turbine system.
The IS200EPDMG1BAA is an Exciter Power Distribution board. The board connects to and is mounted to the side of the EPBP board. The board accepts power from two sources: a 125 VDC supply via the station battery and from a 115 VAC supply. The board then powers I/O, protection, and control boards within the system. These boards can be de-energized from the IS200EPDMG1BAA using the toggle on/off switches mounted to the surface of the board.
The IS200EPDMG1BAA is built with two terminal blocks located in the bottom corner. Other board components include multiple female plug connectors, the previously-mentioned toggle switches, and multiple fuses to protect all throughput. The board also has metal oxide varistors, capacitors, and resistors. There are eight green LED indicators lined up along one long edge of the board that will let users know when the board is energized.
For additional information about the IS200EPDMG1BAA, including important information regarding the hazards associated with handling and installing this equipment, please refer to manuals or user guides originally provided by General Electric. Only well-qualified and trained individuals should install or maintain this equipment.