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Delta connection

Discussion in 'Wiki' started by derekleffew, Sep 30, 2008.

  1. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    Las Vegas, NV, USA
    Alternate method of connecting to a transformer that does not use a neutral. Connections are made in a triangular configuration resembling the greek letter delta: ∆.

    Drawing courtesy of Delta Connection: Definition from

    See also Wye connection and High-leg Delta Service.

    It is important to note that for equal current on each of the phases, the actual line current on L1, L2, and L3 is 1.73 x the phase current.

    Thus a 100A 3-phase delta load draws 173A on L1, L2, L3.
    Last edited: Aug 29, 2009

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