three-phase

Motor power standard

Three-phase describes electrical power systems using three alternating currents offset by 120 degrees, the standard for industrial and commercial power distribution.

Three-phase power delivers energy more efficiently than single-phase, with smoother power flow and the ability to run heavy machinery: The building needs three-phase service for the HVAC system.

Most homes use single-phase; three-phase is for bigger loads.

power

alternating current

Periodically reversing electrical flow

transformer · voltage · current · neutral wire · frequency · synchronization · load balancing · reactance · harmonics · kilowatt

motors

rotor

Spinning mechanical assembly

  • statorImmobile motor component
  • windingCurving repeatedly, sinuous
  • torqueRotational force measurement

horsepower · squirrel cage · efficiency · speed control · nameplate · overload · bearing · shaft · enclosure · cooling fan

generators

alternator

Mechanical-to-electrical energy converter

  • turbineBlade-driven energy converter
  • statorImmobile motor component
  • rotorSpinning mechanical assembly

armature · excitation · powerplant · cogeneration · MVA · prime mover · voltage regulator · standby power · genset

industrial

manufacturing

Industrial product creation

heavy industry · steelworks · refinery · plant · conveyor · CNC machine · compressor · pump · HVAC · welding equipment

Categories
Opposites
electrical phase configuration

three-phasesingle-phase

One alternating current waveform

monophase · two-phase · DC · direct current

power system complexity/capacity

three-phasesingle-phase

One alternating current waveform

light-duty · low-power

Family

three, phase, triple, phrase, emphasis, triplet, tripling, phased, trimester

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G