About the DS3820PSCC
The DS3820PSCC is a power supply unit manufactured by GE for the Mark IV series, which manages gas/steam turbines. The Mark IV is built with integrated microprocessors that use distributed control functions to monitor start-up, temperature, speed, and shutdown, and protect the turbine system from vibration, high pressure, and loss of flame.
The DS3820PSCC is a modification of several DS3800 boards built into a rectangular housing with additional components. It has the following specifications:
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The DS3820PSCC has a rectangular housing with several rectangular cutouts. These are both for heat dissipation and to allow technicians access to the components on the boards mounted within the frame. The housing has several holes drilled for the mounting of components. The frame is marked with the GE symbol and marked “DS3820PSCC.” The frame has several flanges that have screw holes or tabs cut for mounting options to other units.
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The DS3820PSCC has two terminal strips not related to any PCB. Terminal strips have screw-type connections and allow more than one circuit to be connected to another circuit.
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The DS3820PSCC has multiple printed circuit boards. Some boards are attached directly to the inside of the housing. Components on these boards include large capacitors, which use collar clamps as secondary reinforcement to properly adhere their weight to the PCB. Smaller capacitors may be made of polyester vinyl, ceramic, or other material. Boards are also populated with trim potentiometers, TP test points, spare PTH, and resistors. Resistors can be wire wound, metal film or carbon composite; all three kinds are present. The board has several amplifiers, including several surrounded by heat sinks. The module also has several transformers.
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Wires have been gathered and held together with cable ties. Most connections and components within the case are marked.
Technical support for the DS3820PSCC was originally provided by GE. This includes publications like manuals and data sheets.
