DS3820PMMB

About the DS3820PMMB

The DS3820PMMB is a Field Exciter Motor Module designed for the Mark IV gas/steam turbine system.  The DS3820PMMB is not a single PCB, but instead is a modification of many boards, as it is multiple PCBs configured within a housing designed to do a particular job.

The  DS3820PMMB  is built into a metal housing.  This housing has multiple cutouts for accessing the PCBs that lay within it.  The housing has several screw mounts and other tabs cut out of its panels and bottom edge to aid with mounting.    The module assembly also houses a heatsink to properly deal with heat build up. Most boards mount to the frame by the use of screws.  They mount to each other using nylon spacers. Both the screws and the spacers are inserted into previously drilled holes. Wires within this module are often clipped together using nylon ties or are covered by protective sleeves.  

The  DS3820PMMB is built with several PCBs.  This includes DS3810HSSD, DS3810HSIC, and DS3800DEPB.  These are only a few of the many boards used in the construction of the  DS3820PMMB. Due to the number of boards used in this module, the board has too many components to list.   However, components include fifteen rotary potentiometers, eight LEDs, thirty-four jumper switches, one trim potentiometer, and two right-angled 218A4807 mating connectors located on its top board.   

This motor module is non-reversing.  All technical support for the DS3820PMMB was provided by General Electric.  End-user publications like manuals and data sheets were provided by the original equipment manufacturer.