What if you were only allowed to run your resistance welding (RW) machine during the middle of the night? That happened to one manufacturer in a small Iowa community several years ago when it installed a large 300-kVA single-phase AC press-type RW machine in what once was a retail building that lacked adequate incoming power. Daytime operation of the machine was quickly banned by the local power company due to complaints received from locals who experienced flickering lights and TVs when the machine ran.
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