DS382OMSAB

About the DS382OMSAB

DS382OMSAB Microsynch Module

The DS382OMSAB is designed as a circuit board component from General Electric for the Mark IV Series.  The MKIV is used for the control of steam or gas turbines and was the first of the Speedtronic systems to offer TMR architecture with two-out-of-three voting on protection parameters and critical controls.   The DS382OMSAB is no longer actively manufactured but can be purchased from AX Control as a refurbished model. 

The DS382OMSAB is modified from a DS3800NASB board.  The modification includes the installation of a DIN rail system and a plexiglass covering.  The DIN rail connects to the circuit board via screws threaded through standoffs.  The cover is similarly connected to the board using screws threaded through standoffs.  The plexiglass cover has two openings that allow the board’s two transformers to remain uncovered. 

The circuit board portion of the DS382OMSAB has fourteen TP test points.  It has male right-angle header connectors located on three separate board edges. These headers mate wiring to the DIN rails.   Additionally, it has four right-angled cable connectors placed in a single line along one edge.   The fourth edge has a terminal strip.   

Other board components include three transistors, including a Motorola NPN bipolar transistor fitted within a heat sink, seven Ceramite thermistors, seven integrated circuits,  two trim potentiometers, and two transformers.   Resistors are made from carbon composite and metal film. Capacitors are a mix of polyester vinyl, ceramic, and other materials.  

Technical support for the DS382OMSAB was the responsibility of General Electric.  This included forms like data sheets, manuals, and user guides.