Contributing Technical Expert Paul Schimel demonstrates on the bench some less-than-intuitive facts about 3-phase power, triplens, and "zero" current in the neutal to a student electrician. Fig 1.
For modern distribution protection, Negative Phase Sequence (NPS) Protection is often relegated in favor of common elements such as Overcurrent (OC) or Earth Fault (EF), but NPS is an incredibly ...
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