3 Phase Feeders

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In the real world it probably doesn't exist to a point where the system would be over 50% harmonic.

The singular time in 40 years I've seen that was over 80kw of stage lights all being run at under 25%; that did a number of the neutral lug (the cable was fine).

(Lighting company brought a rig that was vastly over powered, around 85 1k PAR cans where 40 that would have been more than good, and was unwilling/able to re-circuit to simply disconnect half of them. They also brought an attitude. Strong but polite words were had, and their name got around with the staging and sound companies.)
 
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