OM-2244 / Operation and Maintenance Manual
DCS-600 / Series 500082 / Solid State Transformer-Rectifiers
1) General
The GPU-600 Solid State Transformer-Rectifiers covered by this manual are manufactured by ITW GSE,
Troy, Ohio 45373. These Transformer Rectifiers (GPUs) are designed to provide ground power for
maintenance and startup of aircraft having 28-VDC electrical systems.
The number 500082 identifies the “model or series” of the GPU. The part number is followed by a
different dash number, which separates the basic units available. The criteria for input voltages, Amps,
and frequencies change with each dash number. Figure 1 uses the part number to identify the variations
possible covered by this manual.
Figure 1 Series 500082 Transformer-Rectifier Part Number Descriptions
2) Optional Equipment - Appendix A
Chapters 1 through 5 of this Operation and Maintenance Manual identifies only the basic version of a
Series 500082 GPU. Component differences between the different machines will be listed when
necessary. A list of optional equipment, which make this manual unique to the GPU that you have
purchased, appears in Appendix A. An example of an item located Appendix A would be a cable basket
option.
3) Orientation
To avoid confusion in the location of components, the control panel is considered to be the front of the
unit. Left and right are determined by looking at the unit from the front.
4) Mounting for the GPU
As a standard, the Transformer-Rectifier GPU-600 is mounted on three wheels with a caster style front
wheel serving as a pivot point for easy maneuverability (i.e. 5
th
wheel). The GPU-600 can also be
mounted stationary as well as mounted on a boarding bridge with the optional bridge mount bracket.
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