About the DS3820PS1B
The DS3820PS1B is a power supply for GE’s Mark IV system. Built on the theory of dedicated control, the MKIV Speedtronic system takes care of control sequencing, power supply, start-up control, shut down, and temperature control within the turbine system.
The DS3820PS1B is built in a large rectangular housing. It is a modification built on DS3800 boards with additional components. The housing has several cutouts designed to allow technicians access to interior components, as well as allowing for heat dissipation. The DS3820PS1B is outfitted with several heat sinks.
The housing of the DS3820PS1B is marked with GE’s identification tag, which notes under the “category” this is a DS3820PS1B. The housing has several flanges with tabs or drill mounts for screws. The frame has been drilled at several points for the mounting of components. The top of the housing is open. However, one PCB is mounted above the frame using four screws and spacers to give enough room for air circulation. This PCB is mounted with its components facing inward. It is most notable for the number of male mating connectors. The connectors along the edge of the board are labeled P5, P6, P7, P8, P9, P10, and P11. These range from two-pin to 12 pin connectors. The board also has an amber LED, TP test points, and trim potentiometers on its surface. A switch and a six-position terminal strip are mounted to the top of the housing.
The interior housing of the DS3820PS1B includes several heatsinks, two large capacitors, a terminal strip with eight double connections, including two that are connected together via a polyester film capacitor, a coil inductor zip-tied to the bottom of the housing, and two transformers. Some of these components connect to two 12-pin female plugs located on the outside of the housing.
Technical support for the DS3820PS1B was provided by GE. This includes all publications like manuals and datasheets.
