Definitions for three-phase

This page provides all possible meanings and translations of the word three-phase


  1. 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. A wye system allows the use of two different voltages from all three phases, such as a 230/400V system which provides 230V between the neutral and any one of the phases, and 400V 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.

Images & Illustrations of three-phase


Find a translation for the three-phase definition in other languages:

Select another language:

Discuss these three-phase definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:     


Use the citation below to add this definition to your bibliography:


"three-phase." STANDS4 LLC, 2015. Web. 29 Nov. 2015. <>.

Are we missing a good definition for three-phase? Don't keep it to yourself...

Nearby & related entries:

Alternative searches for three-phase:

Thanks for your vote! We truly appreciate your support.