weld 1100 - shielded metal arc welding - College of Eastern Utah
weld 1100 - shielded metal arc welding - College of Eastern Utah
weld 1100 - shielded metal arc welding - College of Eastern Utah
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Input Power<br />
Common household power is single phase 120 volts,<br />
alternating current (120VAC) at 60 hertz frequency. Most<br />
households also contain single phase 220 VAC for heavy duty<br />
appliances (clothes dryers and furnaces).<br />
Heavy industry also has single phase 120 and 220 VAC for<br />
running lights and low-power appliances. However, most<br />
heavy industrial equipment operates from 3-phase power at<br />
voltages ranging from 220 to 480 VAC.<br />
A <strong>weld</strong>ing power source must convert high voltage/low current<br />
input power to low voltage/high amperage <strong>weld</strong>ing current.
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