Product Description
The DS2020EXPSG3 is a power supply module fabricated by GE for use within their Speedtronic Mark V series. While GE no longer manufactures these boards as they exist as a member of a now-obsolete legacy series, they are available through AX Control as reconditioned and fully tested modules. The Mark V Series that this DS2020EXPSG3 Exciter Power Supply Module belongs to is one of the later Mark Series offered by General Electric that features their patented Speedtronic control system technology, with the series being specially applicable to the control and management systems of gas, steam, and wind turbines. The DS2020EXPSG3 Power Supply Module is considered the original Mark V Turbine Control System Series product of its exact functionality to feature in its related automated drive assembly, as no significant product revisions have been made to its assembly.
Hardware Tips and Specifications
The DS2020EXPSG3 is an Exciter Power Supply Module for the EX2000 brushless generator excitation subsystem within the greater Mark V Turbine Control System Series. The DS2020EXPSG3 has three primary sections; these include a large metal base with an attached circuit board, a second metal tier with an attached circuit board, and a plexiglass shield. The circuit boards on each tier of this DS2020EXPSG3 modular assembly communicate with each other via surface mounted wired connections. The plexiglass shield screw mounts to the surface of the second tier of the DS2020EXPSG3 assembly and is removable. It carries a large warning label stating the dangers of electrical shock or burns if the unit is mishandled. The special modular assembly style unique to this DS2020EXPSG3 Power Supply Module is indicated in the DS2020EXPSG3 functional product number through the inclusion of the DS2020 special assembly series tag. Some of the other information revealed in this DS2020EXPSG3 product number includes this DS2020EXPSG3 module's domestic location of original manufacture, its EXPS functional product acronym, its normal style of printed circuit board protective coating, and its group three Mark V Turbine Control System Series grouping. Several revised version of this DS2020EXPSG3 printed circuit board or modular assembly have been made available in our inventory of new and reconditioned Mark V Series products; please make sure you need the base or unrevised version of the EXPS board before purchasing this DS2020EXPSG3 device specifically.
The bottom metal carrier of the DS2020EXPSG3 is built with two top hat flanges that have each been drilled twice to allow the unit to be easily mounted in place; each of these factory-drilled installation holes should have been insulated in observance of potentially-present damaging surface voltages. The DS2020EXPSG3 PCB's metal carrier has a two-by-two terminal strip mounted to one corner. The circuit board component on this level is a DS200GDPA board that is populated with heat sinks, transformers, fuse components, stab-on connectors, transistors, high-voltage capacitors, and wire-wound resistors; all various voltage-limiting hardware components standardized within the Mark V Turbine Control System Series. This board also has multiple LED indicators for diagnostic fault condition determination purposes. The top circuit board in this DS2020EXPSG3 PCB's assembly is marked DS200EXPS; another Mark V Series product offering available here at AX Control. It mounts to the metal carrier via multiple standoffs inserted into factory-made drill holes, which have once again been insulated for static-sensitivity. The DS2020EXPSG3 board is populated by terminal strips, heat sinks, metal oxide varistors, and inductor coils, along with various resistors and capacitors.
