About the DS2020EXPSG1
The DS2020EXPSG1 is a modified power supply card manufactured by General Electric for use within the Mark V Speedtronic series. General Electric no longer manufactures MKV components. However, these are available from AX Control as tested, reconditioned units. The DS2020EXPSG1 functions as an Exciter Power Supply card module, and typically fits within the EX2000 brushless generator excitation system. While this is true, this DS2020EXPSG1 Exciter Power Supply Card is also attributable to the its more general Mark V Series, even featuring the alphanumeric product number standard to General Electric printed circuit boards. This is a microprocessor controlled power converter with both an exciter field current regulator and a terminal voltage regulator, and it exists as the originally-developed product by General Electric without any revision history.
Hardware Tips and Specifications
This DS2020EXPSG1 Exciter Power Supply Card, as mentioned just above, is the originally-devised product within GE's Mark V Series that does not feature any significant revisions in its assembly; functional or otherwise. With this being the case, it is still true that this DS2020EXPSG1 Exciter Power Supply Card has a special assembly designated by the presence of the DS2020 series tag in its alphanumeric product number. This DS2020EXPSG1 Exciter Power Supply Card module is essentially made up of two halves of different Mark V Series printed circuit board products.
The DS2020EXPSG1 is built upon a metal base with two top hat flanges. This attaches to a metal carrier that carries a secondary circuit board, a carrier that also attaches to the top plexiglass shield. This plexiglass shield carries a large high voltage label. The bottom metal carrier is factory drilled in four places to facilitate mounting. The lower circuit board portion of the DS2020EXPSG1 is mounted to the lower carrier by standoffs mounted into pre-drilled holes, and is classified officially as a DS200GDPA board, carrying components like transformers, stab-on connectors, heat sinks, fuse components, transistors, wire-wound resistors, and high-voltage capacitors. The lower board of the DS2020EXPSG1 assembly also has several LED indicators. The upper circuit board portion of the DS2020EXPSG1 is a DS200EXPS board, which is mounted to the surface of the top metal carrier using eight standoffs. This printed circuit board is completely protected by the upper plexiglass shield, with the board itself being populated by various hardware elements including inductor coils, metal oxide varistors, heat sinks, terminal strips, stab-on connectors and other connectors, and various capacitors and resistors. For more information about this board, including important installation and handling procedures, please refer to data sheets and user guides originally provided by GE.
