2. Transformer connections: a. Three-phase transformer connections mean delta/ wye or delta/delta or wye/wye. ... The larger integral- horsepower motors should be served by a three- phase supply at 208 volts or higher. ... 460 volts, three- phase 265 volts, single-phase 120 volts, single-phase The 460-volt, three-phase service would supply integral horsepower loads from a wye-connected transformeranbsp;...
|Title||:||Electric systems for commercial buildings|
|Author||:||Institute of Electrical and Electronics Engineers. Subcommittee on Electric Systems for Commercial Buildings, American Institute of Electrical Engineers. Committee on Industrial Power Systems|