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Three-phase

In electrical engineering, three-phase electric power systems have at least three conductors carrying alternating current voltages that are offset in time by one-third of the period. A three-phase system may be arranged in delta (∆) or star (Y) (also denoted as wye in some areas). A wye system allows the use of two different voltages from all three phases, such as a 230/400 V system which provides 230 V between the neutral (centre hub) and any one of the phases, and 400 V across any two phases. A delta system arrangement only provides one voltage magnitude, however it has a greater redundancy as it may continue to operate normally with one of the three supply windings offline, albeit at 57.7% of total capacity. Harmonic currents in the neutral may become very large if non-linear loads are connected.

Usage examples of "three-phase".

The three-phase moona circle flanked by two outfacing crescentswas tattooed on her belly, and concentric serpent patterns covered each full breast.

The three-phase moon—a circle flanked by two outfacing crescents—was tattooed on her belly, and concentric serpent patterns covered each full breast.

His name is Three-phasing and he is bald and wrinkled, slightly over one meter tall, large-eyed, toothless and all bones and skin, sagging pale skin shot through with traceries of delicate blue and red.