3 phase machines need a 3 phase transformer or 3 A/C transformers correctly
tied together. Basically 3 phase is the overlapping of the A/C sine waves from
all three lines of power with the controller/timer eliminating the opposite
phases that would normally reduce the voltages if not accounted for. 3 phase
can come in three types: Normal, Converters, and Inverters. Normal types operate at 60 hz, Converters
are around 20 hz and Inverters are around 400 hz. The Converters were used when
the throat of the machine was going to be very large and this was to reduce the
EMF losses of the throat. Inverters were good for higher power (amperage)
applications but expensive rectifier bridges were needed to off set throat
losses if the parts had any size to them. All three are much more expensive
and the need for them has all been replaced by the newer MFDC technology. This
is because with MFDC being used so much for the robotic transgun applications
the cost, performance and ease of use make MFDC much better than any 3 phase
machines no matter what the application.
See below for MFDC details. For additional information on three phase the
leader in this has always been Sciaky in Chicago.
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