Abstract
An experimental study has shown that dc arc welding generators can be used satisfactorily as an inexpensive power source for large magnet systems. A 120 Hz load current ripple of only 0.05% rms was measured at one-half load and decreased for heavier loads. Random low frequency current fluctuations of ⪞3% peak-to-peak were detected but were reduced to ⪝0.5% peak-to-peak with a feedback technique.
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