Y connection
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Y connection
[′wī kə‚nek·shən] (electricity)
wye (Y) connection
wye connection, 2
wye connection, 1
1. A method of connecting the ends of the windings of a poly-phase transformer; each of the three windings are joined at a common point; the other ends of the windings provide the line-to-line voltages. Compare with delta connection.
2. A fire department connection with two inlets; a siamese connection.