GE DS3820PSCC Mark IV Power Supply Assembly Module

The GE DS3820PSCC is a power supply assembly module identified for the GE Mark IV Speedtronic gas turbine control system. It accepts an input of 80 to 140 VDC, with a nominal input of 125 VDC, and provides a +28 VDC output for control-system power distribution. Its primary selection criteria are the DC input range, output voltage, physical dimensions, and compatibility with the installed Mark IV hardware configuration.

Technical Specifications

Power Conversion and System Function

The DS3820PSCC converts the DC input supply into a regulated +28 VDC output for the control system. The part-specific designation PS 80-140VDC IN/P28V OUT is consistent with this input and output configuration. It distinguishes this module from other Mark IV power supply assemblies designed to provide different output voltage rails.

In a control system, the regulated output provides electrical power to compatible downstream circuits. The available information does not establish the module's rated output current, total output power, regulation tolerance, or ripple specification, so these values should be verified before calculating the available load capacity.

Installation and Configuration Checks

Before replacing an installed unit, verify the complete DS3820PSCC part number against the existing assembly and system documentation. Confirm the station DC supply remains within the specified input range and that the receiving system requires a +28 VDC output.

The supplied information does not establish connector pin assignments, terminal torque values, mounting clearances, or a hot-swap procedure. Follow the applicable equipment documentation and site electrical isolation procedures rather than assuming these details from the module type.

Frequently Asked Questions

Q: What input voltage does the GE DS3820PSCC accept?

A: The specified input range is 80 to 140 VDC, with a nominal input of 125 VDC. The actual supply voltage must remain within this range.

Q: How does the DS3820PSCC differ from the DS3820PSCB?

A: Both are identified as Mark IV power supply assemblies with an 80 to 140 VDC input. The DS3820PSCC is designated for a +28 VDC output, while the DS3820PSCB is listed for +5 V, +15 V, and -15 V outputs. They should not be treated as interchangeable without checking the system requirements.

Q: What should be checked before installing a replacement?

A: Verify the complete part number, input voltage range, required output voltage, mechanical fit, and electrical connections. Confirm the applicable installation procedure and load requirements using the documentation for the installed Mark IV configuration.