IS200ESELH1A

IS200ESELH1A is an Exciter Collector Card and is part of the GE Speedtronic Mark VI gas turbine control systems. It functions as a Power Circuit Board in a turbine management system. This board serves as an Exciter Collector, receiving six logic level gate pulse signals from the EMIO it is connected to. The signals are then distributed to the EGPA exciter gate pulse amplifier boards in the power conversion cabinet. In redundant systems, two ESEL boards are employed, one of which is operated by M1 and the other by M2. The board has a small front panel with three LED lights and is labeled with the board's identification number.

The majority of the components include reference designators. The board comprises numerous integrated circuits, over 75 transistors, 95 capacitors, approximately 300 resistors, and a single bridge driver, as well as two backplane connectors.