Quick overview…

Single-phase electrical supply refers to the distribution of alternating current electric power using a system in which all the voltages of the supply vary uniformly.

Have only two wires (neutral or red / blue / yellow) and active.

Single-phase normally used when loads are mostly lighting and heating with few large electric motors. In Malaysia supplied by single-phase of 240 volt of

when the building unoccupied.

obtaining access to meters

A more recent method for the supply intake to a small building has been the use of an external metal meter cabinet read from outside the premises and thus

prevents the difficulty of

Usually for residentialDIFFERENCES BETWEEN SINGLE & THREE PHASE OF ELECTRIC SUPPLY

To whom does it for ???

What is it?

Single Phase

ElectricityCC 608 BUILDING SERVICEPOLITEKNIK SULTAN AZLAN

SHAH

SINGLE PHASE

Used for small building ( domestic premises)

Three-phase system are less costly transferring power than single-phase systems.

Used 240 volt

A three-phase system perfoms better in motor than single phase systems

Three-phase more efficient than single-phase power.

Need to wire to complete the circuit